Academic literature on the topic 'Coastal zone management Water quality Environmental protection'
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Journal articles on the topic "Coastal zone management Water quality Environmental protection"
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Maksimović, Č., and C. K. Makropoulos. "Integrating river basin management and the coastal zone: the (blue) Danube and the (black) Sea." Water Science and Technology 46, no. 8 (2002): 187–94. http://dx.doi.org/10.2166/wst.2002.0177.
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In order to effectively manage the wide variety of physical, chemical biological and ecological processes in a sensitive coastal environment such as the Black Sea, current environmental management objectives are no longer sufficient: a new management approach has to address the intimate functional linkage between the river basin and the costal environment. Current water quality legislation requires compliance to emission levels based on the chemical analysis of water samples taken at discharge points, such as treatment plants discharging into rivers. While such measures provide a relative indication of the water quality at the point of discharge, they fail to describe accurately and sufficiently the quality of the water received from the watershed or basin. As water flows through the catchment, rainfall run-off from urban and agricultural areas carries sediments, pesticides, and other chemicals into river systems, which lead to coastal waters. The impact of the Kosovo crisis on the Danube ecosystems provides a poignant example of the effects of such diffused pollution mechanisms and reveals a number of interesting pollution mechanisms. This paper discusses both the effects of diffused pollution on the Black Sea, drawing from state-of-the-art reports on the Danube, and proposes a framework for a decision support system based on distributed hydrological and pollution transport simulation models and GIS. The use of ecological health indicators and fuzzy inference supporting decisions on regional planning within this framework is also advocated. It is also argued that even the recently produced GEF document on Black Sea protection scenarios should benefit significantly if the concept of pollution reduction from both urban, industrial and rural areas should undergo a systematic conceptual update in the view of the recent recommendations of the UNEP IETC (2000) document.
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Dreizis, Yuriy, and Vladislav Kostin. "Complex coastal protective measures to protect the sandy beach." E3S Web of Conferences 175 (2020): 12017. http://dx.doi.org/10.1051/e3sconf/202017512017.
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The environmental impact of the engineering project was taken into account when carrying out comprehensive studies of shore protection engineering measures for the Lazurnoye region of the Kherson region of Ukraine on the north-western coast of the Black Sea. The optimal configuration of hydrotechnical structures are choosen to protect the beach in the region of the incoming wave impact. The entire coastline of the Lazurnoye region is about 3000 meters. In the course of modelling and numerical experiments, the transfer of bottom sediments to the coast, the evolution of the coastline and beaches, and other coastal processes were studied. The project of comprehensive coastal protection of the Lazurnoye region, presented on the basis of mathematical and hydraulic modelling, has allowed the development of engineering solutions that meet coastal protection and environmental requirements. The most expedient variant of coastal protective measures was the creation of a system of the beachprotected structures capes from sections of the permeable slope-steps designs with wave damping chambers. The presented research results and the solution of many problems of the dynamics of the coastal zone of the sea can be considered as an attempt to manage coastal processes on rather large and complex sections of the coast with a joint solution to the problems of hydraulic engineering, management of water quality in the coastal zone of the sea, and the choice of optimal options with the least impact on the environment.
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Cheng, Kun, Xiangrui Xu, Liqiang Cui, et al. "The role of soils in regulation of freshwater and coastal water quality." Philosophical Transactions of the Royal Society B: Biological Sciences 376, no. 1834 (2021): 20200176. http://dx.doi.org/10.1098/rstb.2020.0176.
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Water quality regulation is an important ecosystem service function of soil. In this study, the mechanism by which soil regulates water quality was reviewed, and the effects of soil management on water quality were explored. A scientometrics analysis was also conducted to explore the research fields and hotspots of water quality regulation of soil in the past 5 years. This review found that the pollutants entering the soil can be mitigated by precipitation, adsorption and desorption, ion exchange, redox and metabolic decomposition. As an optimal substrate, soil in constructed wetlands has perfect performance in the adsorption and passivation of pollutants such as nitrogen, phosphorus and heavy metals in water, and degradation of pesticides and emerging contaminants. Mangrove wetlands play an important role in coastal zone protection and coastal water quality restoration. However, the excessive application of agricultural chemicals causes soil overload, which leads to the occurrence of agricultural non-point source pollution. Under the dual pressures of climate change and food insecurity in the future, developing environmentally friendly and economically feasible sustainable soil management measures is crucial for maintaining the water purification function of soil by relying on the accurate quantification of soil function based on big data and modelling. This article is part of the theme issue ‘The role of soils in delivering Nature's Contributions to People’.
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Wisha, Ulung Jantama, Semeidi Husrin, and Gegar Sapta Prasetyo. "Hydrodynamics of Bontang Seawaters: Its Effects on the Distribution of Water Quality Parameters." ILMU KELAUTAN: Indonesian Journal of Marine Sciences 21, no. 3 (2016): 123. http://dx.doi.org/10.14710/ik.ijms.21.3.123-134.
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Bontang is a crowded with residential and industrial activities which produce heat waste into surrounding waters. This condition may cause environmental problems, and changes in water condition. Knowledge about dynamics of physic and chemical waters condition in Bontang city is very important as an effort to address environmental issues as part of coastal zone management and protection. The aim of this research is to understand hydrodynamic characteristics (tide and current) and the influence to distribution of physics and chemical in Bontang waters base on primary data (current and tide during one month, physics and chemicals waters data taken by in situ) and secondary data (bathymetry and tide forecasting). Hydrodynamic simulation is based on MIKE 21 and supported by CD-Oceanography and WR plot. The results show that the current is dominant move toward the Southwest and Northeast with current speed ranged from 0-0,22 m.s-1. The results of hydrodynamic simulation in the surface water show that the current move base on tide movement with current speed ranged from 0-0,24 m.s-1. The results of physic and chemical concentration is analysed by ArcGIS 10 to know spatial distribution of all parameters. Surface temperature ranged from 29-31,8oC, surface density ranged from 20-20,6 ppm, salinity ranged from 33,1-33,5 ppm, dissolve oxygen concentration ranged from 0,078-0,11 ppm. Distribution of all physic and chemical parameters is influenced by current and tide movement. Keywords: current, numerical model, water quality, Bontang waters
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Faruqee, Rashid. "Role of Economic Policies in Protecting the Environment: The Experience of Pakistan." Pakistan Development Review 35, no. 4II (1996): 483–506. http://dx.doi.org/10.30541/v35i4iipp.483-506.
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Economic policies that ensure efficient allocation of resources is a necessary, but not a sufficient condition for creating appropriate environmental incentives. Environment-specific policies are also needed to correct market failures leading to environment problems. Two types of policies can be used to deal with environmental problems—command and control policies and incentive- or market-based policies. Command and control policies involve government mandating of environmental quality standards on emissions, technology type, or input use. Incentive- or market-based policies use prices to try to affect pollution and resource use. Despite the advantages of marketbased approaches, Pakistan, like many other countries, mostly followed control policies. But these policies have often failed to achieve results because regulating institutions lack the financial and technical resources to implement these policies effectively. Pakistan’s brown environmental problems include industrial waste water pollution, domestic waste water pollution, motor vehicle emissions, urban and industrial air pollution, and marine and coastal zone pollution. Economic policy failures are contributing significantly to many of these problems. Green environmental problems affect irrigated agriculture, rainfed agriculture, forests, and rangelands. In irrigated agriculture, economic policies, such as subsidies on irrigation water, have provided incentives for farmers to over use water in their production practices, thereby exacerbating the problem of waterlogging and salinity. Deforestation and rangeland degradation have resulted, in part, due to lack of property rights in communal forests and lack of incentive for local communities to participate in forest management decisions.
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APPELDOORN, RICHARD S. "Transforming reef fisheries management: application of an ecosystem-based approach in the USA Caribbean." Environmental Conservation 35, no. 3 (2008): 232–41. http://dx.doi.org/10.1017/s0376892908005018.
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SUMMARYFisheries in Puerto Rico and the United States (US) Virgin Islands are predominately dependent on nearshore coral reef ecosystems and have suffered from historical overfishing. The unique characteristics of reef fisheries, including strong habitat dependence, susceptibility to coastal impacts, diffuse landing sites and strong multispecies and multigear interactions suggest that standard approaches to fisheries management, especially those typically considered by the US Regional Fishery Management Councils, would not be applicable. Current management authority is split between local and federal agencies; however, there exists no uniform context and direction to current management initiatives, which results in lost efficiencies and opportunities. Proposed here is a new vision for fisheries management that takes into consideration the local ecological and socioeconomic characteristics of fishing, is compatible with regional resources and capacity, is ecosystem based and targets full stakeholder participation. Only an ecosystem-based approach can lead fisheries management out of the trap of unrealistic data collection and analysis demands, while at the same time refocusing emphasis away from attitudes and practices that promote overfishing. Management must be based on first principles regarding the desired state of the ecosystem and initiate strategies based on these principles. The key management goal is not to maximize fisheries catch, but to maintain the ecosystem in a state that will lead to sustained production. First principles would include maintaining ecosystem integrity and function, protecting all habitats and water quality, applying the precautionary approach, monitoring reference points and recognizing that production has limits. Resulting management tactics include marine reserves (to meet multiple goals), closed spawning aggregations, gear restrictions to maintain trophic balance and habitats, targeted data collection and assessments, adopting co-management practices and using ecosystem or community-based metrics. Fisheries management must fully incorporate the tools, resources and methods available within coastal zone management and other environmental agencies, while standards within those programmes must protect ecosystem health. Implementation will require attending to structural barriers inherent within existing fisheries legislation and regulations, multiple jurisdictions and the current cultures of scientists, managers and fisherfolk. Initial efforts should focus on developing a common language and frame of reference for all stakeholders.
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Dreizis, Y. I. "Modelling of water quality management in the sea coastal zone." E3S Web of Conferences 224 (2020): 02001. http://dx.doi.org/10.1051/e3sconf/202022402001.
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Coastal territories are one of the most dynamically developing regions. Sea resorts focused on recreational and tourist activities are developing especially quickly. For such territories, their ecological status, especially the quality of coastal zone water resources, plays an important role in their sustainable development. Analysis of physical factors of water exchange and assessment of water resources quality of the coastal zone of the sea, including in closed and semi-enclosed water areas, was carried out. It has been shown that water exchange is the most important factor in the management of the quality of marine waters of partially enclosed coastal areas. 0-dimensional and system-dynamic models were used to analyze water exchange in the coastal zone of the sea. Results of studies made it possible to assess the circulation of coastal marine waters and the change in certain indicators of the quality of water resources, including in the presence of various coastal protection construction.
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Dreizis, Yuriy. "Water quality management in the coastal zone of the sea." E3S Web of Conferences 215 (2020): 04003. http://dx.doi.org/10.1051/e3sconf/202021504003.
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Sea resort areas are currently one of the most successful developing regions. At the same time, the ecological condition of such regions is important, especially those that specialize in the provision of recreational and tourist services. The quality of coastal water resources played an important role in the sustainable development of those coastal tourist areas. Analysis of physical factors of water exchange was carried out and assessment of water resources quality of the coastal zone of the sea was made, including in closed and semi-enclosed water areas. It has been shown that water exchange is the most important factor in the management of the quality of marine waters of partially enclosed coastal areas. The results of the studies made it possible to assess the circulation of coastal marine waters and the change in certain indicators of water quality, including in the presence of various coastal protection facilities, based on 0-dimensional and system-dynamic models. The results obtained can be used to predict the state of water resources in coastal territories.
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Rasch, P. S., N. Ipsen, A. Malmgren-Hansen, and B. Mogensen. "Linking integrated water resources management and integrated coastal zone management." Water Science and Technology 51, no. 11 (2005): 221–29. http://dx.doi.org/10.2166/wst.2005.0409.
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Some of the world's most valuable aquatic ecosystems such as deltas, lagoons and estuaries are located in the coastal zone. However, the coastal zone and its aquatic ecosystems are in many places under environmental stress from human activities. About 50% of the human population lives within 200 km of the coastline, and the population density is increasing every day. In addition, the majority of urban centres are located in the coastal zone. It is commonly known that there are important linkages between the activities in the upstream river basins and the environment conditions in the downstream coastal zones. Changes in river flows, e.g. caused by irrigation, hydropower and water supply, have changed salinity in estuaries and lagoons. Land use changes, such as intensified agricultural activities and urban and industrial development, cause increasing loads of nutrients and a variety of chemicals resulting in considerable adverse impacts in the coastal zones. It is recognised that the solution to such problems calls for an integrated approach. Therefore, the terms Integrated Water Resources Management (IWRM) and Integrated Coastal Zone Management (ICZM) are increasingly in focus on the international agenda. Unfortunately, the concepts of IWRM and ICZM are mostly being developed independently from each other by separate management bodies using their own individual approaches and tools. The present paper describes how modelling tools can be used to link IWRM and ICZM. It draws a line from the traditional sectoral use of models for the Istanbul Master Planning and assessment of the water quality and ecological impact in the Bosphorus Strait and the Black Sea 10 years ago, to the most recent use of models in a Water Framework Directive (WFD) context for one of the selected Pilot River Basins in Denmark used for testing of the WFD Guidance Documents.
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Mahajan, A. U., C. V. Chalapatirao, and S. K. Gadkari. "Mathematical modeling – a tool for coastal water quality management." Water Science and Technology 40, no. 2 (1999): 151–57. http://dx.doi.org/10.2166/wst.1999.0110.
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This paper suggests an approach to solve the Indian coastal water quality management problem based on waste load allocation studies and application of modelling techniques. The waste load allocation procedure suggested in this paper assists in deriving a quantitative relationship between the waste load discharged and the receiving coastal water concentrations or effects of concern as presented by water quality standards. The approach sequentially addresses the topics of hydrodynamics, mass transport, water quality kinetics and problems of bioaccumulation and toxicity. The water quality modelling section describes the role of water quality modelling in WLA procedure. The paper also discusses the criteria and procedures for formulation of coastal zone management plans. The second part of the paper illustrates the concept with the help of brief case studies wherein simple screening procedures and the water quality modeling techniques have been applied. The first case study describes the application of the WASP model to arrive at the level of treatment required for municipal wastewater being discharged into Mumbai coastal waters so that the designated coastal water quality criteria is not violated and the degree of treatment is optimized. The second case study deals with the study of different options relating to disposal of tailings from an iron ore beneficiation plant keeping in view the impact of these tailings on marine water quality and ecology.
Dissertations / Theses on the topic "Coastal zone management Water quality Environmental protection"
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Al, Zahed Khalid. "Coastal zone management in Dubai with reference to ecological characterization along Dubai Creek." Thesis, St Andrews, 2008. http://hdl.handle.net/10023/541.
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Litvinaitis, Andrius. "The evaluation of the influence of coastal sediments on river water quality." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130619_125148-43041.
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The PhD thesis deals with the characteristics of biogenic substance migration in the Lithuanian riverbank sediments and its impact on the river water quality. Six catchments of rivers with different dominant sediments, located in different hydro-logic areas of Lithuania, were selected as the object of the research. Such object selection allows to apply the results of the work to any catchment of a Lithuanian river. The aim of the thesis is to establish the characteristics of the migration of biogenic substances in sediments, ground and surface waters, taking into considera-tion climatic and geomorphological conditions of the river catchment, in order to evaluate the change in the concentration of biogenic substances in riverbank aeration zone of different sediments as well as its impact on the quality of the river water. Analytical, field investigations and experimental studies as well as mathematical modelling were applied in the work to evaluate the patterns of the change of concentration of biogenic substances in river catchments and riverbank areas.
The thesis consists of an introduction, free chapters, general conclusions and lists of references as well as the author’s publications on the topic of the PhD thesis.
The introductory chapter presents the problem of the research, the relevance of the paper, the object of research, the aim and goals of the paper are formulated as well as its scientific novelty, approval of work results and thesis statements are pre-sented... [to full text]<br>Disertacijoje nagrinėjamos biogeninių medžiagų migracijos Lietuvos upių pakrančių nuogulose ypatybės ir jų įtaka upių vandens kokybei. Tyrimų objektu pasirinkti šeši skirtingose Lietuvos hidrologinėse srityse esantys tipingų nuogulų upių baseinai. Toks objektų pasirinkimas leidžia darbo rezultatus taikyti bet kuriame Lietuvos upės baseine. Disertacijos tikslas – atsižvelgiant į klimatines bei upės baseino geomorfologines sąlygas nustatyti biogeninių medžiagų migracijos ypatybes nuogulose, gruntiniuose ir paviršiaus vandenyse, siekiant įvertinti biogeninių medžiagų koncentracijų kaitą upių pakrančių skirtingų nuogulų aeracinėse zonose ir jos įtaką upių vandens kokybei. Darbe analitiniais, natūriniais ir eksperimentiniais tyrimais, matematiniu modeliavimu įvertinami biogeninių medžiagų koncentracijų kaitos dėsningumai upių baseinuose ir pakrantėse.
Disertaciją sudaro įvadas, trys skyriai, bendrosios išvados, naudotos literatūros ir autoriaus publikacijų disertacijos tema sąrašai.
Įvadiniame skyriuje suformuluota tiriamoji problema, darbo aktualumas, tyrimų objektas, formuluojamas darbo tikslas bei uždaviniai, darbo mokslinis naujumas, darbo rezultatų aprobavimas, ginamieji teiginiai. Įvade pateiktos autoriaus disertacijos tema paskelbtos publikacijos ir pranešimai konferencijose bei disertacijos struktūra.
Pirmame skyriuje pateikta mokslinės literatūros biogeninių medžiagų migracijos gamtoje, upės baseino teritorinės struktūros įtakos tyrimų, Lietuvos upių vandens kokybės... [toliau žr. visą tekstą]
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Van, Wyk Frederick C. (Frederick Christoffel). "Die Saldanhabaai Watergehalte Forum Trust : 'n instrument vir beplande, geintegreerde monitering en bestuur van watergehalte." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52226.
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Thesis (MSc)--Stellenbosch University, 2001.<br>ENGLISH ABSTRACT: The Saldanha-Langebaan coastal zone is an important natural resource and serves as
habitat for several endangered bird and fish species. Development in this coastal zone
holds a constant threat for the natural environment and has a negative impact on the
water quality of the bay. It is therefore essential to manage the water quality to ensure
fitness for use for all the beneficial users in this coastal zone.
This study focuses on the utilization and management of the Saldanha-Langebaan
coastal zone. The beneficial users have different water quality requirements. It is
therefore important to identify all the different water uses and to determine the
occurrence of pollution and the dispersion thereof in the bay.
The biophysical characteristics of the natural resource are described as part of the
objective determining phase of the integrated water quality management process. The
thesis also focuses on the inauguration and functioning of an integrated water quality
management organization and the development and implementation of a long term
monitoring program, with special emphasis on the sediment en health monitoring
results.
The result of this research study is a functional management instrument for integrated
water quality monitoring and management in the Saldanha-Langebaan coastal zone.<br>AFRIKAANSE OPSOMMING: Die Saldanha-Langebaan kussone is 'n belangrike natuurlike hulpbron en dien as
habitat vir verskeie bedreigde voel- en visspesies. Hierdie kussone is egter ook onder
konstante ontwikkelingsdruk wat 'n negatiewe impak op die watergehalte van die baai
het. Dit is dus noodsaaklik dat die watergehalte so bestuur word dat dit geskik bly vir
al die gemeenskaplike watergebruikers in hierdie kussone.
In hierdie studie is die benutting en bestuur van die Saldanha-Langebaan kussone
ondersoek. Verskillende watergebruikers het uiteenlopende watergehaltebehoeftes en
dit is noodsaaklik om die verskillende watergebruikers, sowel as die voorkoms en
verspreiding van besoedeling in hierdie gebied te identifiseer.
Die biofisiese eienskappe van die natuurlike kusopvanggebied is beskryf as deel van
die aanvanklike doelwitbepalingsfase van geïntegreerde watergehaltebestuur. Die
tesis fokus ook op die stigting en werkswyse van 'n geïntegreerde
watergehaltebestuursliggaam, asook die ontwerp en implementering van 'n
langtermyn moniteringsprogram. Daar is veral gelet op die resultate van die
. sediment- en bakteriologiese moniteringsprogram.
Die resultaat van die navorsingsproses is die totstandkoming van 'n funksionele
bestuursliggaam wat as instrument dien vir geïntegreerde monitering en bestuur van
die watergehalte in die Saldanha-Langebaan kussone.
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Scarfe, Bradley Edward. "Oceanographic Considerations for the Management and Protection of Surfing Breaks." The University of Waikato, 2008. http://hdl.handle.net/10289/2668.
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Although the physical characteristics of surfing breaks are well described in the literature, there is little specific research on surfing and coastal management. Such research is required because coastal engineering has had significant impacts to surfing breaks, both positive and negative. Strategic planning and environmental impact assessment methods, a central tenet of integrated coastal zone management (ICZM), are recommended by this thesis to maximise surfing amenities. The research reported here identifies key oceanographic considerations required for ICZM around surfing breaks including: surfing wave parameters; surfing break components; relationship between surfer skill, surfing manoeuvre type and wave parameters; wind effects on waves; currents; geomorphic surfing break categorisation; beach-state and morphology; and offshore wave transformations. Key coastal activities that can have impacts to surfing breaks are identified. Environmental data types to consider during coastal studies around surfing breaks are presented and geographic information systems (GIS) are used to manage and interpret such information. To monitor surfing breaks, a shallow water multibeam echo sounding system was utilised and a RTK GPS water level correction and hydrographic GIS methodology developed. Including surfing in coastal management requires coastal engineering solutions that incorporate surfing. As an example, the efficacy of the artificial surfing reef (ASR) at Mount Maunganui, New Zealand, was evaluated. GIS, multibeam echo soundings, oceanographic measurements, photography, and wave modelling were all applied to monitor sea floor morphology around the reef. Results showed that the beach-state has more cellular circulation since the reef was installed, and a groin effect on the offshore bar was caused by the structure within the monitoring period, trapping sediment updrift and eroding sediment downdrift. No identifiable shoreline salient was observed. Landward of the reef, a scour hole ~3 times the surface area of the reef has formed. The current literature on ASRs has primarily focused on reef shape and its role in creating surfing waves. However, this study suggests that impacts to the offshore bar, beach-state, scour hole and surf zone hydrodynamics should all be included in future surfing reef designs. More real world reef studies, including ongoing monitoring of existing surfing reefs are required to validate theoretical concepts in the published literature.
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Roca, Carceller Guillem. "Tracking environmental change in seagrass meadows: understanding indicator behaviour across space and time." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/325415.
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Nearshore marine ecosystems like seagrass meadows face a wide range of anthropogenic influences, impacting the system at different spatial and temporal scales. Managing these systems in the face of these pressures requires detailed knowledge of how seagrass habitats respond to these various threats. A plethora of useful indicators have been developed to help managers and policy makers track seagrass meadow health and status, detect environmental impacts or measure the effectiveness of management interventions. However, choosing between these indicators can often be a daunting task since they vary considerably in their overall behaviour in relation to ecosystem and environmental changes. This thesis assesses the most commonly employed seagrass indicators to determine if they are adequate and appropriate to the specific needs of coastal ecosystem management. This assessment is based on evaluating three fundamental characteristics of each indicator – the robustness of its response, the specificity or generality of its response, and the time of response. We use a variety of complementary approaches to explore indicator behaviour. In Chapter 3, we use field-based studies to assess how seagrass indicators respond to the construction of a breakwater in the vicinity of a Posidonia oceanica seagrass meadow. Chapters 4 and 5 examine long-term trends in seagrass indicators to improving water quality conditions after significant regional management interventions. In addition, in Chapter 6, we comprehensively review seagrass indicator responses to multiple stressors. Chapters 3, 4 and 5 focus largely on the Catalan Coast in the Mediterranean with Posidonia oceanica as a target species. Chapter 6 in contrast is a broad review of a wide range of indicators used across several seagrass species worldwide. A central learning across these studies was that the level of biological organisation of the indicator (i.e. Physiological, biochemical, growth, morphological, structural or demographic) is critical in determining the specificity or generality of response: the lower the level (e.g. biochemical), the most specific the response, while the higher the level (e.g. population, community), the wider the response. Thus, biochemical indicators are ideal to determine the identity or even the origin of a pressure while structural indicators, in contrast, are useful as generic indicators of declining conditions. Response times are also heavily determined by the level of organisation, particularly in the detection of improving environmental quality along the Catalan coast. Biochemical indicators responded unequivocally to water quality improvements observed both in the experimental field study (Chapter 3) as well as in the analysis of the long-term data series (Chapters 4 and 5). The meta-analysis confirmed that these trends in specificity and response time were not unique to Posidonia oceanica or the Catalan coast and highlighted the critical role of plant size in determining indicator time responses. Large species take considerably longer to register a response to environmental degradation as well as improvement – a critical factor that needs to be accounted for in designing monitoring programmes and interpreting ecosystem trends. Taken together, these results suggest that differences in the behaviour of seagrass indicators require that they should be carefully selected to match the objectives of management. Based on the results reported in this thesis, where different sets of indicators have been proven successful for given management objectives, we finally develop a simple decision tree to help managers chose the most reliable sets of indicators matching their objectives. Understanding the diversity of responses that seagrass indicators display can make them a powerful set of tools in the ecosystem manager’s toolkit. Carefully employed, they can serve as bespoke solutions to a wide range of management objectives as we seek to monitor and protect these vital ecosystems and coastal water quality in the face of increasing coastal pressures.<br>Entendre com responen les fanerògames marines a les pressions, és clau per a poder gestionar tant els herbeis com les aigües costaneres. Actualment, disposem d’un gran nombre d’indicadors basats en fanerògames marines. Però, la manca d’informació sobre com responen als canvis ambientals, fa que no sigui fàcil escollir quins indicadors són els més adients per a cada tipus i objectiu de gestió.
Aquesta tesi avalua les tres característiques bàsiques de la resposta dels indicadors més utilitzats als canvis ambientals: la robustesa de la resposta, la especificitat dels indicadors a diferents pressions i el temps de resposta. Per analitzar aquestes tres característiques, fem servir diferents aproximacions complementàries. Al capítol 3, analitzem la resposta de diferents indicadors a les obres d’ampliació del port de Blanes, situat just al costat d’un herbei de Posidonia oceanica. Als capítols 4 i 5, estudiem com responen els indicadors a la millora de la qualitat de l’aigua a la costa catalana. Finalment, al capítol 6, presentem una metaanàlisi que estudia com responen els indicadors a diferents factors d’estrès. De totes tres aproximacions, hem pogut comprovar que el nivell d’organització dels indicadors (i.e. bioquímic, estructural) és clau a l’hora de determinar el grau d’especificitat de la resposta dels indicadors a les pressions: generalment, a més baix nivell d’organització (e.g. bioquímic), més específica és la resposta i com més alt (e.g. demogràfic), més ampli és el rang de pressions que un indicador pot detectar. El temps de resposta dels indicadors varia també en funció del nivell d’organització dels indicadors, especialment, quan es tracta de la detecció de millores ambientals. A més a més, la metaanàlisi destaca la importància de la mida de les plantes per determinar el temps de resposta. Les espècies grans triguen més a detectar la degradació de les condicions ambientals i, molt més, a detectar la millora, especialment, si s’utilitzen indicadors estructurals o demogràfics. Basant-nos en els resultats d’aquesta tesi, hem elaborat un esquema per ajudar els gestors a escollir el conjunt d’indicadors que més s’ajusti a cada objectiu de gestió. Utilitzats correctament, aquests indicadors són molt útils per fer el seguiment, tant de l’estat de salut dels herbeis, com de la qualitat del medi.
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Van, Rooyen Raymond. "An investigation into the port of Durban water quality management." Thesis, 2001. http://hdl.handle.net/10413/5269.
Full textAbstract:
The Port of Durban is a resource utilised by a wide range of stakeholders. The water
quality of this resource is a prerequisite for sustaining the preferred uses of the bay for
future generations. Given the extent of development in the port the abundance of fauna
and flora is remarkable.
Based on the current literature available the management of the port uses a combination
of international and local standards to manage the water resource. An associated
problem however is that the local legislation does not address the heart of the pollution
problem - the polluter. This is highlighted in all chapters of this thesis, as the South
African water quality guidelines are not legally enforceable, and do not take into account
the combined use of resources.
The uncontrolled nutrient loads and pollution present in the port system could ultimately
affect the ecosystem health. This is amplified by apparent inability of officials to protect
the receiving environment of the Port of Durban. The subsequent condition of water
quality in the port compared with the Department of Water Affairs guidelines indicates
that there is less than 5% compliance with the target water quality variables.
in comparing the same water quality to international water quality Legislation the
compliance percentage increased marginally, however the bacterial contamination and
nutrient contamination of the resource is apparent even with more relaxed international
comparisons. The noticeable cause was clearly evident when comparing results,
indicating extensive unacceptable bacterial and nutrient contamination emanating from
stormwater systems from the city of Durban, and highly urbanised river catchments.
Based on the water quality results it is highly recommended that sustainable
environmental management practices be implemented to protect and address the water
resource. The metropolitan authorities need to investigate the origins of the stormwater
pollution and dialogue must ensue between Portnet and the City to reach consensus on
receiving water quality objectives with the aim of compiling a water management policy.<br>Thesis (M.A.)-University of Natal, Durban, 2001.
Books on the topic "Coastal zone management Water quality Environmental protection"
1
Galveston Bay National Estuary Program. The Galveston Bay Plan: The comprehensive conservation and management plan for the Galveston Bay Ecosystem. The Program, 1994.
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2
United States. Congress. Senate. Committee on Environment and Public Works. Coastal Protection Act of 1990: Report of the Committee on Environment and Public Works to accompany S. 1178. U.S. G.P.O., 1990.
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3
United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment. Coastal environmental monitoring: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, June 26, 1990. U.S. G.P.O., 1990.
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4
United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment. Coastal environmental monitoring: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, June 26, 1990. U.S. G.P.O., 1990.
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5
Environment, United States Congress House Committee on Merchant Marine and Fisheries Subcommittee on Fisheries and Wildlife Conservation and the. Coastal water quality: Hearing before the Subcommittee on Fisheries and Wildlife Conservation and the Environment and the Subcommittee on Oceanography of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundredth Congress, second session on impact of nonpoint source pollution on coastal water quality, July 13, 1988. U.S. G.P.O., 1988.
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6
United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment. Coastal water quality: Hearing before the Subcommittee on Fisheries and Wildlife Conservation and the Environment and the Subcommittee on Oceanography of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundredth Congress, second session on impact of nonpoint source pollution on coastal water quality, July 13, 1988. U.S. G.P.O., 1988.
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7
Pacheco, James M. Indicators of coastal zone environmental quality: An annotated bibliography. Shorelands and Water Resources Program, Washington Dept. of Ecology, 1995.
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8
Scapini, Felicita, and Gabriele Ciampi. Coastal water bodies: Nature and culture conflicts in the Mediterranean. Springer, 2010.
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9
Associates, Cahill. Stormwater management in the New Jersey coastal zone: A report. The Division, 1989.
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10
Street, Michael W. North Carolina coastal habitat protection plan. N.C. Dept. of Environment and Natural Resources, Division of Marine Fisheries, 2005.
Find full textBook chapters on the topic "Coastal zone management Water quality Environmental protection"
1
Jiang, Guoqiang, Jianhua Tao, and Hongli Wang. "Grey relational assessment of water quality and space diversity analysis of pollution for coastal zone of Bohai Bay." In Environmental Hydraulics and Sustainable Water Management, Two Volume Set. CRC Press, 2004. http://dx.doi.org/10.1201/b16814-105.
Full text
2
García, Mario, Héctor Ulloa, Omar García, et al. "Particle and Carbon Monoxide Atmospheric Pollution in the City of Tepic, Nayarit, Mexico." In Environmental Sustainability - Preparing for Tomorrow. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95579.
Full textAbstract:
Actively caring for the environment is an issue that prevails in the international debate, and our country takes part on this argument. One aspect of environmental deterioration is, with no doubt, atmospheric pollution; a constant in modern societies, which, in the attempt to find growth and development, impact the natural and urban environment they inhabit. A distinctive feature of commercial and economic exchange are the strategic cities, so-called capitals, in addition to the territories where coastal tourism predominates as an engine of regional human development. In this balance, which is far from being sustainable and fair, an exponential consumer market dominates and generates the progressive increase in the use of fossil fuels. The former being emitted into the atmosphere, in such a way that they alter chemical composition and cause harmful air quality. In addition, the territory is impacted, intoxicating the soil and water, which are the final deposit. The objective of this work is to determine the temporal behavior of atmospheric pollutants in the city of Tepic, Nayarit, Mexico and to identify the dominant pollution indicators considering the international and national context. Through the statistical analysis of the databases of particles smaller than 2.5 micrometers, particles smaller than 10 micrometers and carbon monoxide, the behaviors of these pollutants in the study area were obtained. Among the most significant results, particles smaller than 2.5 micrometers showed maximum levels outside the norm almost all year round, with values reaching 170 micrograms per cubic meter. On the other hand, the particles smaller than 10 micrometers presented satisfactory levels in their average behavior; however, the maximum concentrations remained outside the official Mexican standard. Regarding the analysis of CO, a behavior within the maximum permissible limits of protection for the population was reported; Nevertheless, by favoring the formation of tropospheric ozone, its contribution is significant, especially when the atmosphere is highly photo-reactive. This research can be used as a timely tool for mitigation of climate change, where the results contribute to the review and rethinking of public management of the environment towards sustainable development.
Conference papers on the topic "Coastal zone management Water quality Environmental protection"
1
Nikonorova, Inna, and Inna Nikonorova. "MANAGEMENT AND SPATIAL PLANNING IN THE COASTAL ZONE OF THE CHEBOKSARY RESERVOIR." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b431619fad1.
Full textAbstract:
Cheboksary reservoir impact to the coast is manifested in the geophysical impact associated with abrasion activities. Geomorphological area of influence at the moment reaches a width of about 40 m, where are the coasts reformation (erosion, collapse, slumping, sliding, transfer or accumulation of sediments, waterlogged processes). Hydrogeological impact is effect on the level of groundwater. We have proposed the conceptual foundations of functional zoning of the reservoir banks that will help to optimize its operation. Selection zones came in accordance with the principles of landscape planning: 1. The zone of strict water protection: the main purpose – preservation of needing special protection areas. 2. The zone of moderate restrictions: preservation extensively used landscapes. 3. The zone of partial restrictions: improving the pre-emptive particularly vulnerable areas and changing intensity or type of use. 4. The zone of conservation of natural components in agricultural landscapes: ensuring health of the natural environment in the habitats used in agricultural economy. 5. The zone of preservation of vacant space and the natural environment in the settlements: to maintain the required quantity and quality of available green space in the large towns. 6. The zone of improving heavily used areas: elimination of harmful stress and environmental sanitation in the countryside where economic activities and the lack of measures to reduce their risks lead to degradation natural system.
2
Nikonorova, Inna, and Inna Nikonorova. "MANAGEMENT AND SPATIAL PLANNING IN THE COASTAL ZONE OF THE CHEBOKSARY RESERVOIR." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b941dc9d866.24389672.
Full textAbstract:
Cheboksary reservoir impact to the coast is manifested in the geophysical impact associated with abrasion activities. Geomorphological area of influence at the moment reaches a width of about 40 m, where are the coasts reformation (erosion, collapse, slumping, sliding, transfer or accumulation of sediments, waterlogged processes). Hydrogeological impact is effect on the level of groundwater. We have proposed the conceptual foundations of functional zoning of the reservoir banks that will help to optimize its operation. Selection zones came in accordance with the principles of landscape planning: 1. The zone of strict water protection: the main purpose – preservation of needing special protection areas. 2. The zone of moderate restrictions: preservation extensively used landscapes. 3. The zone of partial restrictions: improving the pre-emptive particularly vulnerable areas and changing intensity or type of use. 4. The zone of conservation of natural components in agricultural landscapes: ensuring health of the natural environment in the habitats used in agricultural economy. 5. The zone of preservation of vacant space and the natural environment in the settlements: to maintain the required quantity and quality of available green space in the large towns. 6. The zone of improving heavily used areas: elimination of harmful stress and environmental sanitation in the countryside where economic activities and the lack of measures to reduce their risks lead to degradation natural system.
3
Barstow, Stephen F., Gunnar Mo̸rk, Lasse Lo̸nseth, et al. "WORLDWAVES: High Quality Coastal and Offshore Wave Data Within Minutes for Any Global Site." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37297.
Full textAbstract:
There has been a growing demand for reliable information on the wave conditions, in particular at coastal sites, as a result of increased utilisation of the coastal zone to a multitude of activities including various shoreline developments related to transportation, tourism, fish farming and recently wind and wave energy industries. This trend is likely to continue. Reliable data is also needed with respect to the management and protection of these often fragile environments. Many of those concerned with these wave-impacted environments still use antiquated data sources, usually from offshore waters as, in the absence of long term wave data collected at the site of interest, the calculation of reliable wave statistics at a coastal site is a complicated, time consuming and expensive business, requiring various data sets to be assembled. WORLDWAVES simplifies and speeds up the modelling of wave conditions in coastal waters by integrating the following under a single Matlab toolbox: High quality long-term wave data offshore all global coasts; worldwide bathymetric and coastline data; SWAN and backward raytracing wave models; sophisticated offshore and nearshore wave statistics toolboxes with tabular and graphical presentations, including a facility to export ASCII time series data at offshore or inshore locations; a geographic module with easy zooming to any area worldwide; tools to set up model grids and display and edit bathymetry and coastline; a facility for the import of user offshore data and export of inshore time series data. In this paper we describe the design and implementation of WorldWaves including the fusion of satellite, model and buoy wave and wind data in the global offshore database and the new raytracing model.
4
Rubtsova, Svetlana, Svetlana Rubtsova, Natalya Lyamina, Natalya Lyamina, Aleksey Lyamin, and Aleksey Lyamin. "DEVELOPMENT OF SCIENTIFIC FOUNDATION FOR SOLVING ENVIRONMENTAL AND HYDROBIOLOGICAL PROBLEMS OF INTEGRATED COASTAL ZONE MANAGEMENT." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4315769940.
Full textAbstract:
The work is dedicated to the development of the system of coastal zone environmental assessment, grounding on the principles of integrated approach to the management of resource and environmental safety in the Azov and Black Sea region. The methodological approaches and applied assessments of the quality control analysis of sea water and benthic sediment according to the monitoring data were formed. The methods of the marine environment biomonitoring were offered; its results have a universal basis and can serve both as the index of investigated cenosis structure and its physiological state.
5
Rubtsova, Svetlana, Svetlana Rubtsova, Natalya Lyamina, Natalya Lyamina, Aleksey Lyamin, and Aleksey Lyamin. "DEVELOPMENT OF SCIENTIFIC FOUNDATION FOR SOLVING ENVIRONMENTAL AND HYDROBIOLOGICAL PROBLEMS OF INTEGRATED COASTAL ZONE MANAGEMENT." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b941f56b7b3.00964002.
Full textAbstract:
The work is dedicated to the development of the system of coastal zone environmental assessment, grounding on the principles of integrated approach to the management of resource and environmental safety in the Azov and Black Sea region. The methodological approaches and applied assessments of the quality control analysis of sea water and benthic sediment according to the monitoring data were formed. The methods of the marine environment biomonitoring were offered; its results have a universal basis and can serve both as the index of investigated cenosis structure and its physiological state.
6
Ostanin, Nikifor, and Nikifor Ostanin. "THE ROLE OF REMOTE SENSING DATA FOR COASTAL ZONE MONITIORING AND MANAGEMENT (CASE STUDY FOR THE EAST PART OF GULF OF FINLAND)." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b431552d3e8.
Full textAbstract:
Coastal zone of the Eastern Gulf of Finland is subjected to essential natural and anthropogenic impact. The processes of abrasion and accumulation are predominant. While some coastal protection structures are old and ruined the problem of monitoring and coastal management is actual. Remotely sensed data is important component of geospatial information for coastal environment research. Rapid development of modern satellite remote sensing techniques and data processing algorithms made this data essential for monitoring and management. Multispectral imagers of modern high resolution satellites make it possible to produce advanced image processing, such as relative water depths estimation, sea-bottom classification and detection of changes in shallow water environment. In the framework of the project of development of new coast protection plan for the Kurortny District of St.-Petersburg a series of archival and modern satellite images were collected and analyzed. As a result several schemes of underwater parts of coastal zone and schemes of relative bathymetry for the key areas were produced. The comparative analysis of multi-temporal images allow us to reveal trends of environmental changes in the study areas. This information, compared with field observations, shows that remotely sensed data is useful and efficient for geospatial planning and development of new coast protection scheme.
7
Ostanin, Nikifor, and Nikifor Ostanin. "THE ROLE OF REMOTE SENSING DATA FOR COASTAL ZONE MONITIORING AND MANAGEMENT (CASE STUDY FOR THE EAST PART OF GULF OF FINLAND)." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b9443afa289.85091316.
Full textAbstract:
Coastal zone of the Eastern Gulf of Finland is subjected to essential natural and anthropogenic impact. The processes of abrasion and accumulation are predominant. While some coastal protection structures are old and ruined the problem of monitoring and coastal management is actual. Remotely sensed data is important component of geospatial information for coastal environment research. Rapid development of modern satellite remote sensing techniques and data processing algorithms made this data essential for monitoring and management. Multispectral imagers of modern high resolution satellites make it possible to produce advanced image processing, such as relative water depths estimation, sea-bottom classification and detection of changes in shallow water environment. In the framework of the project of development of new coast protection plan for the Kurortny District of St.-Petersburg a series of archival and modern satellite images were collected and analyzed. As a result several schemes of underwater parts of coastal zone and schemes of relative bathymetry for the key areas were produced. The comparative analysis of multi-temporal images allow us to reveal trends of environmental changes in the study areas. This information, compared with field observations, shows that remotely sensed data is useful and efficient for geospatial planning and development of new coast protection scheme.
8
Elkafrawy, Sameh, Sameh Elkafrawy, Akram Soliman, Akram Soliman, Mohamed Bek, and Mohamed Bek. "EVALUATING SHORELINE, URBAN AND ROADS CHANGES IN THE HURGHADA AREA, EGYPT, USING MULTISPECTRAL SATELLITE IMAGES." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b9422c50d28.22324330.
Full textAbstract:
The rapid urban development in the Hurghada area since the 1980s has dramatically enhanced the potential impact of human activities. To inventory and monitor this urban development effectively, remote sensing provides a viable source of data from which updated land cover information can be extracted efficiently and cheaply. In this study, data from three satellite datasets, Landsat Thematic Mapper (Landsat 5 TM), Landsat Enhanced Thematic Mapper Plus (Landsat 7 ETM+) and Terra/Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), acquired during 1987, 2000 and 2005, respectively, were used to detect and evaluate Hurghada's urban expansion. Five change detection techniques were tested to detect areas of change. The techniques considered were image differencing, image ratioing, image overlay, multidate principal component analysis (PCA) and post-classification comparison. The post-classification comparison was found to be the most accurate procedure and produced three land use/land cover (LULC) maps of the years 1987, 2000 and 2005 with overall accuracies of 87.8%, 88.9% and 92.0%, respectively. The urban expansion analysis revealed that the built-up area has expanded by 40 km2 in 18 years (1987–2005). In addition, 4.5 km2 of landfill/sedimentation was added to the sea as a result of the coastal urban development and tourist activities. The booming coastal tourism and population pressure were considered to be the main factors driving this expansion, and some natural and artificial constraints constrained the physical shape of the city. The expansion is represented by urban fringe development, linear, infill and isolated models. Topography, lithology and structures were also analysed as possible factors that influenced the expansion. The understanding of the spatial and temporal dynamics of Hurghada's urban expansion is the cornerstone for formulating a view about the future urban uses and for making the best use of the limited resources that are available [1]. A Landsat 5 Thematic Mapper (TM) image of 1987 and a Landsat 7 Enhanced Thematic Mapper Plus (ETM+) image of 2000 were used to examine changes in land use/land cover (LULC) around Hurghada, Egypt, and changes in the composition of coral reefs offshore. Prior to coral reef bottom type classification, the radiance values were transformed to depth invariant bottom indices to reduce the effect of the water column. Subsequently, a multi component change detection procedure was applied to these indices to define changes. Preliminary results showed significant changes in LULC during the period 1987–2000 as well as changes in coral reef composition. Direct impacts along the coastline were clearly shown, but it was more difficult to link offshore changes in coral reef composition to indirect impacts of the changing LULC. Further research is needed to explore the effects of the different image processing steps, and to discover possible links between indirect impacts of LULC changes and changes in the coral reef composition [2]. Knowledge and detecting impacts of human activities on the coastal ecosystem is an essential management requirement and also very important for future and proper planning of coastal areas. Moreover, documentation of these impacts can help in increasing public awareness about side effects of unsustainable practices. Analysis of multidate remote sensing data can be used as an effective tool in environmental impact assessment (EIA). Being synoptic and frequent in coverage, multidate data from Landsat and other satellites provide a reference record and bird’s eye viewing to the environmental situation of the coastal ecosystem and the associated habitats. Furthermore, integration of satellite data with field observations and background information can help in decision if a certain activity has caused deterioration to a specific habitat or not. The present paper is an attempt to utilize remote sensing data for assessment impacts of some human activities on the major sensitive habitats of the north western Egyptian Red Sea coastal zone, definitely between Ras Gemsha and Safaga. Through multidate change analysis of Landsat data (TM & ETM+ sensors), it was possible to depict some of the human infringements in the area and to provide, in some cases, exclusive evidences for the damaging effect of some developmental activities [3]. The coastline of Hurghada has experienced considerable environmental stress from tourist and residential recreational activities. Uncontrolled tourist development has already caused substantial damage to inshore reefs and imbalance in the hydrodynamic pattern of the coastal sediments. The objective of this paper is to investigate environmental changes using multitemporal, multispectral satellite data to identify changes at Hurghada caused by anthropogenic influences. Major detected changes include resort beaches, protection structures and landfill areas; these changes are mainly due to human intervention. Two Landsat Thematic Mapper (TM) images acquired in 1984 and 1997 are used for this analysis. The landfill areas formed during this period are calculated at about 2.15 Km2 . Whilst landfill creates new inexpensive land and improves access to the sea for tourists, it is the cause of environmental problems. In addition, land-use/land-cover and beach changes are determined over the 13-year period [4]. The Red Sea coastal zone is characterized by its sensitive, fragile, unique natural resources and habitats. In the Hurghada coastal region, major changes in the tourism industry have taken place in the last few decades. The detection of environmental changes, in a selected site of the Red Sea coastal zone, will be helpful to protect and develop this coastal environment. A methodology for separating natural and man-made changes in satellite images was developed. It was based on the following assumptions: (1) slow changes, which occur within the range of the class reflectance, represent a natural change rather than an anthropogenic one; (2) natural changes tend to be in the same land-use/land-cover class in each date, i.e. slow changes in the reflectance, not leading to changes in the type of land-use/land-cover class from the master image to the destination one; and (3) rapid changes in the reflectance of the Earth's objects are usually related to anthropogenic activities. This technique is used to identify and assess changes along the coast of Hurghada and Ras Abu Soma, the Red Sea. Results indicate serious human impacts and the necessity for control measures and monitoring. Recommendations are presented [5]. The rapid urban development of the Hurghada area began in early 1980 to build villages and huge tourist resorts and this has continued urban development and subsequent land filling and dredging of the shoreline and the destruction of coral so far. These coastal developments have led to an increase in shoreline land filling and dredging. Despite all the environmental laws of the organization to reduce infringement on the shoreline, the abuses are still ongoing. Change detection analysis using remote sensing is a very good tool to monitor the changes condition in urban development and shoreline. Four sensors was used in this study, three of them are, Landsat Multispectral Scanner (Landsat 1 MSS), Landsat Thematic Mapper (Landsat 5 TM), Landsat Enhanced Thematic Mapper Plus (Landsat 7 ETM+) and the another one is SPOT XS 4 (Originally Système Probatoire de l’Observation de la Terre), acquired during 1972, 1984, 1992, 2004 and 2011, respectively, were used to detect and evaluate Hurghada’s urban expansion and shoreline changes. After the images have been geometrically, radio-metrically and atmospherically corrected using ENVI 5.0 software, the digital number was transformed to the reflectance values and the images were ready to change detection process with the integration of geographic information system using Arc GIS 10 software. The results show that changes during the 39 years of the shoreline is 6.29 km2, (5.65 km2 accretion and 0.64 km2 erosion) and urban development is 16.47 km2 the road network is the 8.738 km2.
9
Elkafrawy, Sameh, Sameh Elkafrawy, Akram Soliman, Akram Soliman, Mohamed Bek, and Mohamed Bek. "EVALUATING SHORELINE, URBAN AND ROADS CHANGES IN THE HURGHADA AREA, EGYPT, USING MULTISPECTRAL SATELLITE IMAGES." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4316250187.
Full textAbstract:
The rapid urban development in the Hurghada area since the 1980s has dramatically enhanced the potential impact of human activities. To inventory and monitor this urban development effectively, remote sensing provides a viable source of data from which updated land cover information can be extracted efficiently and cheaply. In this study, data from three satellite datasets, Landsat Thematic Mapper (Landsat 5 TM), Landsat Enhanced Thematic Mapper Plus (Landsat 7 ETM+) and Terra/Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), acquired during 1987, 2000 and 2005, respectively, were used to detect and evaluate Hurghada's urban expansion. Five change detection techniques were tested to detect areas of change. The techniques considered were image differencing, image ratioing, image overlay, multidate principal component analysis (PCA) and post-classification comparison. The post-classification comparison was found to be the most accurate procedure and produced three land use/land cover (LULC) maps of the years 1987, 2000 and 2005 with overall accuracies of 87.8%, 88.9% and 92.0%, respectively. The urban expansion analysis revealed that the built-up area has expanded by 40 km2 in 18 years (1987–2005). In addition, 4.5 km2 of landfill/sedimentation was added to the sea as a result of the coastal urban development and tourist activities. The booming coastal tourism and population pressure were considered to be the main factors driving this expansion, and some natural and artificial constraints constrained the physical shape of the city. The expansion is represented by urban fringe development, linear, infill and isolated models. Topography, lithology and structures were also analysed as possible factors that influenced the expansion. The understanding of the spatial and temporal dynamics of Hurghada's urban expansion is the cornerstone for formulating a view about the future urban uses and for making the best use of the limited resources that are available [1]. A Landsat 5 Thematic Mapper (TM) image of 1987 and a Landsat 7 Enhanced Thematic Mapper Plus (ETM+) image of 2000 were used to examine changes in land use/land cover (LULC) around Hurghada, Egypt, and changes in the composition of coral reefs offshore. Prior to coral reef bottom type classification, the radiance values were transformed to depth invariant bottom indices to reduce the effect of the water column. Subsequently, a multi component change detection procedure was applied to these indices to define changes. Preliminary results showed significant changes in LULC during the period 1987–2000 as well as changes in coral reef composition. Direct impacts along the coastline were clearly shown, but it was more difficult to link offshore changes in coral reef composition to indirect impacts of the changing LULC. Further research is needed to explore the effects of the different image processing steps, and to discover possible links between indirect impacts of LULC changes and changes in the coral reef composition [2]. Knowledge and detecting impacts of human activities on the coastal ecosystem is an essential management requirement and also very important for future and proper planning of coastal areas. Moreover, documentation of these impacts can help in increasing public awareness about side effects of unsustainable practices. Analysis of multidate remote sensing data can be used as an effective tool in environmental impact assessment (EIA). Being synoptic and frequent in coverage, multidate data from Landsat and other satellites provide a reference record and bird’s eye viewing to the environmental situation of the coastal ecosystem and the associated habitats. Furthermore, integration of satellite data with field observations and background information can help in decision if a certain activity has caused deterioration to a specific habitat or not. The present paper is an attempt to utilize remote sensing data for assessment impacts of some human activities on the major sensitive habitats of the north western Egyptian Red Sea coastal zone, definitely between Ras Gemsha and Safaga. Through multidate change analysis of Landsat data (TM & ETM+ sensors), it was possible to depict some of the human infringements in the area and to provide, in some cases, exclusive evidences for the damaging effect of some developmental activities [3]. The coastline of Hurghada has experienced considerable environmental stress from tourist and residential recreational activities. Uncontrolled tourist development has already caused substantial damage to inshore reefs and imbalance in the hydrodynamic pattern of the coastal sediments. The objective of this paper is to investigate environmental changes using multitemporal, multispectral satellite data to identify changes at Hurghada caused by anthropogenic influences. Major detected changes include resort beaches, protection structures and landfill areas; these changes are mainly due to human intervention. Two Landsat Thematic Mapper (TM) images acquired in 1984 and 1997 are used for this analysis. The landfill areas formed during this period are calculated at about 2.15 Km2 . Whilst landfill creates new inexpensive land and improves access to the sea for tourists, it is the cause of environmental problems. In addition, land-use/land-cover and beach changes are determined over the 13-year period [4]. The Red Sea coastal zone is characterized by its sensitive, fragile, unique natural resources and habitats. In the Hurghada coastal region, major changes in the tourism industry have taken place in the last few decades. The detection of environmental changes, in a selected site of the Red Sea coastal zone, will be helpful to protect and develop this coastal environment. A methodology for separating natural and man-made changes in satellite images was developed. It was based on the following assumptions: (1) slow changes, which occur within the range of the class reflectance, represent a natural change rather than an anthropogenic one; (2) natural changes tend to be in the same land-use/land-cover class in each date, i.e. slow changes in the reflectance, not leading to changes in the type of land-use/land-cover class from the master image to the destination one; and (3) rapid changes in the reflectance of the Earth's objects are usually related to anthropogenic activities. This technique is used to identify and assess changes along the coast of Hurghada and Ras Abu Soma, the Red Sea. Results indicate serious human impacts and the necessity for control measures and monitoring. Recommendations are presented [5]. The rapid urban development of the Hurghada area began in early 1980 to build villages and huge tourist resorts and this has continued urban development and subsequent land filling and dredging of the shoreline and the destruction of coral so far. These coastal developments have led to an increase in shoreline land filling and dredging. Despite all the environmental laws of the organization to reduce infringement on the shoreline, the abuses are still ongoing. Change detection analysis using remote sensing is a very good tool to monitor the changes condition in urban development and shoreline. Four sensors was used in this study, three of them are, Landsat Multispectral Scanner (Landsat 1 MSS), Landsat Thematic Mapper (Landsat 5 TM), Landsat Enhanced Thematic Mapper Plus (Landsat 7 ETM+) and the another one is SPOT XS 4 (Originally Système Probatoire de l’Observation de la Terre), acquired during 1972, 1984, 1992, 2004 and 2011, respectively, were used to detect and evaluate Hurghada’s urban expansion and shoreline changes. After the images have been geometrically, radio-metrically and atmospherically corrected using ENVI 5.0 software, the digital number was transformed to the reflectance values and the images were ready to change detection process with the integration of geographic information system using Arc GIS 10 software. The results show that changes during the 39 years of the shoreline is 6.29 km2, (5.65 km2 accretion and 0.64 km2 erosion) and urban development is 16.47 km2 the road network is the 8.738 km2.