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Journal articles on the topic 'Drainage sub-basins'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Tamrakar, Naresh Kazi, and Binod Karki. "Geomorphometric properties and variability of sediment delivery ratio and specific sediment yield among sub-basins of the Karra River, Hetauda, central Nepal Sub-Himalaya." Journal of Nepal Geological Society 59 (July 24, 2019): 19–37. http://dx.doi.org/10.3126/jngs.v59i0.24983.

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Geomorphometric properties of watershed-scale are often calculated to characterize drainage basins morphology for evaluating their geomorphic status of basin development. More recently these properties have widely been applied in inferring the sediment delivery ratio and sediment yields of the basin to estimate and know sediment erosion status of drainage basin with the help of morph metric data. In fact, sediment delivery ratio (SDR) and specific sediment yield (SSY) of the basins depend not only on watershed properties but also indirectly on other factors such as climate, hydrology, land use

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Zhang, Wei, Wenkai Li, Hugo A. Loaiciga, et al. "Adaptive Determination of the Flow Accumulation Threshold for Extracting Drainage Networks from DEMs." Remote Sensing 13, no. 11 (2021): 2024. http://dx.doi.org/10.3390/rs13112024.

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Selecting the flow accumulation threshold (FAT) plays a central role in extracting drainage networks from Digital Elevation Models (DEMs). This work presents the MR-AP (Multiple Regression and Adaptive Power) method for choosing suitable FAT when extracting drainage from DEMs. This work employs 36 sample sub-basins in Hubei (China) province. Firstly, topography, the normalized difference vegetation index (NDVI), and water storage change are used in building multiple regression models to calculate the drainage length. Power functions are fit to calculate the FAT of each sub-basin. Nine randomly

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3

Mao, Y., A. Ye, J. Xu, et al. "An advanced distributed automated extraction of drainage network model on high-resolution DEM." Hydrology and Earth System Sciences Discussions 11, no. 7 (2014): 7441–67. http://dx.doi.org/10.5194/hessd-11-7441-2014.

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Abstract. A high-resolution and high-accuracy drainage network map is a prerequisite for simulating the water cycle in land surface hydrological models. The objective of this study was to develop a new automated extraction of drainage network model, which can get high-precision continuous drainage network on high-resolution DEM (Digital Elevation Model). The high-resolution DEM need too much computer resources to extract drainage network. The conventional GIS method often can not complete to calculate on high-resolution DEM of big basins, because the number of grids is too large. In order to d

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4

EVELPIDOU, Niki, Theodoros GOURNELOS, Anna KARKANI, and Eirini KARDARA. "Developing a neuro–fuzzy system to classify drainage sub-basins according to erosion processes on the Island of Lefkas, Greece." Revista de Geomorfologie 20, no. 1 (2018): 79–89. http://dx.doi.org/10.21094/rg.2018.025.

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In this paper we attempt to classify drainage sub-basins according to their erosion risk. We have adopted a multistep procedure to face this problem. The input variables were introduced into a GIS – platform. These variables were the vulnerability of the surface rocks to erosion, topographic variations, vegetation cover, land use and drainage basin characteristics. We constructed a fuzzy inference mechanism to pre-process the input variables. Next we used neural–network technology to process the input variables. The system was trained to ‘learn’ and classify the input data. The output of this

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5

Moojong, Park, Jun Hwandon, and Shin Minchul. "Estimation of sediments in urban drainage areas and relation analysis between sediments and inundation risk using GIS." Water Science and Technology 58, no. 4 (2008): 811–17. http://dx.doi.org/10.2166/wst.2008.283.

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Sediments entering the sewer in urban areas reduce the conveyance in sewer pipes, which increases inundation risk. To estimate sediment yields, individual landuse areas in each sub-basin should be obtained. However, because of the complex nature of an urban area, this is almost impossible to obtain manually. Thus, a methodology to obtain individual landuse areas for each sub-basin has been suggested for estimating sediment yields. Using GIS, an urban area is divided into sub-basins with respect to the sewer layout, with the area of individual landuse estimated for each sub-basin. The sediment

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Lemann, Tatenda, Vincent Roth, Gete Zeleke, Alemtsehay Subhatu, Tibebu Kassawmar, and Hans Hurni. "Spatial and Temporal Variability in Hydrological Responses of the Upper Blue Nile basin, Ethiopia." Water 11, no. 1 (2018): 21. http://dx.doi.org/10.3390/w11010021.

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To assess the spatial and temporal availability of blue and green water for up- and downstream stakeholders, the hydrological responses of the upper Blue Nile basin in the Ethiopian Highlands was modelled and analysed with newly generated input data, such as soil and land use maps. To consider variations in the seasonal climate, topography, soil, land use, and land management, the upper Blue Nile basin was modelled in seven major sub-basins. The modelling showed significant spatial and temporal differences in the hydrological responses of different sub-basins and years. The long-term mean annu

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Arabameri, Alireza, John P. Tiefenbacher, Thomas Blaschke, Biswajeet Pradhan, and Dieu Tien Bui. "Morphometric Analysis for Soil Erosion Susceptibility Mapping Using Novel GIS-Based Ensemble Model." Remote Sensing 12, no. 5 (2020): 874. http://dx.doi.org/10.3390/rs12050874.

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The morphometric characteristics of the Kalvārī basin were analyzed to prioritize sub-basins based on their susceptibility to erosion by water using a remote sensing-based data and a GIS. The morphometric parameters (MPs)—linear, relief, and shape—of the drainage network were calculated using data from the Advanced Land-observing Satellite (ALOS) phased-array L-type synthetic-aperture radar (PALSAR) digital elevation model (DEM) with a spatial resolution of 12.5 m. Interferometric synthetic aperture radar (InSAR) was used to generate the DEM. These parameters revealed the network’s texture, mo

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Al- Saedi, Zeyad Jameel, and Mustafa Rashead Al-Obaidi. "Morphotectonic Analysis of Euphrates River Basin/ Iraq." JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 26, no. 8 (2018): 217–29. http://dx.doi.org/10.29196/jubpas.v26i8.1690.

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Morphological and morphotectonic analysis have been used to obtain information that influences basis. The study area includes the Euphrates river basin in Iraq. Tectonically this area within a Stable shelf, The Stable Shelf which covers the vast majority of the focal south and west of Iraq reaches out into Syria and Jordan and Southwards into Kuwait and Saudi Arabia. It is separated in Iraq into three considerable structural zones. Discrimination of morphotectonic indices of Euphrates basin by using sevenindices. The Euphrates basin (main basin) was divided into four sub-basin (s.b) Wadi Horan

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Nsubuga, Francis W. N., O. J. Botai, Jane M. Olwoch, C. J. deW Rautenbach, Yvette Bevis, and Adebayo O. Adetunji. "The nature of rainfall in the main drainage sub-basins of Uganda." Hydrological Sciences Journal 59, no. 2 (2014): 278–99. http://dx.doi.org/10.1080/02626667.2013.804188.

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10

Ramillien, Guillaume, Lucía Seoane, and José Darrozes. "An Innovative Slepian Approach to Invert GRACE KBRR for Localized Hydrological Information at the Sub-Basin Scale." Remote Sensing 13, no. 9 (2021): 1824. http://dx.doi.org/10.3390/rs13091824.

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GRACE spherical harmonics are well-adapted for representation of hydrological signals in river drainage basins of large size such as the Amazon or Mississippi basins. However, when one needs to study smaller drainage basins, one comes up against the low spatial resolution of the solutions in spherical harmonics. To overcome this limitation, we propose a new approach based on Slepian functions which can reduce the energy loss by integrating information in the spatial, spectral and time domains. Another advantage of these regionally-defined functions is the reduction of the problem dimensions co

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Kamel, KHANCHOUL, and SAAIDIA Bachir. "Morphometric analysis of river subwatersheds using geographic information system and principal component analysis, northeast of Algeria." Revista de Geomorfologie 19, no. 1 (2017): 155–72. http://dx.doi.org/10.21094/rg.2017.018.

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In the present paper an attempt is made to study the morphometric characteristics of five watersheds which are part of Seybouse and Coastal basin of Constantine located in northeast of Algeria. The study focuses on evaluating the effect of morphometric parameters on land degradation. The Geographical Information Systems which represent efficient tools in determination of drainage basin morphometric properties and principal component analysis are applied to ten geomorphic parameters on twenty subwatersheds, to group the parameters under different components based on significant correlations. So

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Abdelkarim, Ashraf, Seham S. Al-Alola, Haya M. Alogayell, Soha A. Mohamed, Ibtesam I. Alkadi, and Ismail Y. Youssef. "Mapping of GIS-Flood Hazard Using the Geomorphometric-Hazard Model: Case Study of the Al-Shamal Train Pathway in the City of Qurayyat, Kingdom of Saudi Arabia." Geosciences 10, no. 9 (2020): 333. http://dx.doi.org/10.3390/geosciences10090333.

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Drainage basins in dry and semiarid environments are exposed to sudden, irregular flooding that poses a threat to urban areas and infrastructure. The associated risk is exacerbated by land use changes. Geomorphometric analyses of drainage basins based on geographic information systems (GIS) are essential tools for assessing conceptual flood hazards. Geomorphological data extracted from high-precision digital elevation models (DEMs) provide valuable information for modeling the geomorphic, surface classifications of the earth, and for flood hazard mapping. This study aimed to develop an integra

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13

Prado, RB, and EMLM Novo. "Modeling pollution potential input from the drainage basin into Barra Bonita reservoir, São Paulo – Brazil." Brazilian Journal of Biology 75, no. 2 (2015): 314–23. http://dx.doi.org/10.1590/1519-6984.12013.

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In this study multi-criteria modeling tools are applied to map the spatial distribution of drainage basin potential to pollute Barra Bonita Reservoir, São Paulo State, Brasil. Barra Bonita Reservoir Basin had undergone intense land use/land cover changes in the last decades, including the fast conversion from pasture into sugarcane. In this respect, this study answers to the lack of information about the variables (criteria) which affect the pollution potential of the drainage basin by building a Geographic Information System which provides their spatial distribution at sub-basin level. The GI

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14

Gong, L. "Data-based discharge extrapolation: estimating annual discharge for a partially gauged large river basin from its small sub-basins." Hydrology and Earth System Sciences Discussions 9, no. 6 (2012): 6829–56. http://dx.doi.org/10.5194/hessd-9-6829-2012.

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Abstract. Large-scale hydrological models and land surface models are by far the only tools for accessing future water resources in climate change impact studies. Those models estimate discharge with large uncertainties, due to the complex interaction between climate and hydrology, the limited quality and availability of data, as well as model uncertainties. A new purely data-based scale-extrapolation method is proposed, to estimate water resources for a large basin solely from selected small sub-basins, which are typically two-orders-of-magnitude smaller than the large basin. Those small sub-

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Gong, L. "Data-driven scale extrapolation: estimating yearly discharge for a large region by small sub-basins." Hydrology and Earth System Sciences 18, no. 1 (2014): 343–52. http://dx.doi.org/10.5194/hess-18-343-2014.

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Abstract. Large-scale hydrological models and land surface models are so far the only tools for assessing current and future water resources. Those models estimate discharge with large uncertainties, due to the complex interaction between climate and hydrology, the limited availability and quality of data, as well as model uncertainties. A new purely data-driven scale-extrapolation method to estimate discharge for a large region solely from selected small sub-basins, which are typically 1–2 orders of magnitude smaller than the large region, is proposed. Those small sub-basins contain sufficien

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16

Pangali Sharma, Til Prasad, Jiahua Zhang, Narendra Raj Khanal, et al. "A Geomorphic Approach for Identifying Flash Flood Potential Areas in the East Rapti River Basin of Nepal." ISPRS International Journal of Geo-Information 10, no. 4 (2021): 247. http://dx.doi.org/10.3390/ijgi10040247.

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Basin geomorphology is a complete system of landforms and topographic features that play a crucial role in the basin-scale flood risk evaluation. Nepal is a country characterized by several rivers and under the influence of frequent floods. Therefore, identifying flood risk areas is of paramount importance. The East Rapti River, a tributary of the Ganga River, is one of the flood-affected basins, where two major cities are located, making it crucial to assess and mitigate flood risk in this river basin. A morphometric calculation was made based on the Shuttle Radar Topographic Mission (SRTM) 3

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Habtu, Worku, and Jayappa K. S. "Use of ASTER DEM data for Morphometric Analysis of Megech Dirma-Watersheds, Blue Nile Basin, Ethiopia: Implications for Soil and Water Conservation." Remote Sensing of Land 5, no. 1 (2021): 27–40. http://dx.doi.org/10.21523/gcj1.2021050103.

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Quantitative morphometric analysis was carried out for Megech-Dirma, sub-basin of the Blue Nile, by estimating (1) linear, (2) aerial, and (3) relief aspects. An endeavor has been made to measure the Megech-Dirma watershed’s morphometric characteristics to implement conservation methods for soil and water properly. ASTER DEM has been used as input data for extracting morphometric parameters. Strahler’s classification scheme was used to classify the extracted drainage network in ArcGIS extension ArcMap 10.4. The watershed covers a total surface area of 1309.56 km2. The shape of the watersheds a

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Kleidon, A., E. Zehe, U. Ehret, and U. Scherer. "Thermodynamics, maximum power, and the dynamics of preferential river flow structures at the continental scale." Hydrology and Earth System Sciences 17, no. 1 (2013): 225–51. http://dx.doi.org/10.5194/hess-17-225-2013.

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Abstract. The organization of drainage basins shows some reproducible phenomena, as exemplified by self-similar fractal river network structures and typical scaling laws, and these have been related to energetic optimization principles, such as minimization of stream power, minimum energy expenditure or maximum "access". Here we describe the organization and dynamics of drainage systems using thermodynamics, focusing on the generation, dissipation and transfer of free energy associated with river flow and sediment transport. We argue that the organization of drainage basins reflects the fundam

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Kleidon, A., E. Zehe, U. Ehret, and U. Scherer. "Thermodynamics, maximum power, and the dynamics of preferential river flow structures on continents." Hydrology and Earth System Sciences Discussions 9, no. 6 (2012): 7317–78. http://dx.doi.org/10.5194/hessd-9-7317-2012.

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Abstract. The organization of drainage basins shows some reproducible phenomena, as exemplified by self-similar fractal river network structures and typical scaling laws, and these have been related to energetic optimization principles, such as minimization of stream power, minimum energy expenditure or maximum "access". Here we describe the organization and dynamics of drainage systems using thermodynamics, focusing on the generation, dissipation and transfer of free energy associated with river flow and sediment transport. We argue that the organization of drainage basins reflects the fundam

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20

Brahim, Benzougagh, Boudad Larbi, Dridri Abdallah, and Sdkaoui Driss. "Utilisation Du Sig Dans L’analyse Morphometrique Et La Prioritisation Des Sous-Bassins Versants De Oued Inaouene (Nord-Est Du Maroc)." European Scientific Journal, ESJ 12, no. 6 (2016): 266. http://dx.doi.org/10.19044/esj.2016.v12n6p266.

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The present work focuses on the prioritization of the wadi Inaouène watershed based on morphometric analysis. The river system was extracted and thirteen sub-catchment basins have been delineated from a DTM using open source software. The following morphometric parameters were calculated for each sub-basin stream length (Lu) and the average length (Lsm), flow length ratio (RL), bifurcation ratio (Rb), medium bifurcation ratio (RBM), drainage density (Dd), drainage texture (T), the flow rate (Fs), elongation rate (Re), circularity ratio (Rc), form factor (Ff), topography and terrain ratio. By c

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21

Rai, Praveen Kumar, Prafull Singh, Varun Narayan Mishra, Anisha Singh, Bhartendu Sajan, and Arjun Pratap Shahi. "Geospatial Approach for Quantitative Drainage Morphometric Analysis of Varuna River Basin, India." Journal of Landscape Ecology 12, no. 2 (2019): 1–25. http://dx.doi.org/10.2478/jlecol-2019-0007.

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Abstract An assessment of Varuna river basin of India was performed to study the various drainage parameters in GIS platform. The delineation of drainage network is possible either physically from topographic sheets or with the help data of Digital Elevation Model (DEM) by methods for calculation techniques. Extraction of the basin and sub-basins, stream network has been produced to evaluate the drainage characteristics in the study zone. The entire Varuna river basin has been subdivided into 3 sub-watersheds and 41 morphometric parameters have been computed under four broad categories i.e. dr

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Zhang, Danrong, Liru Zhang, Yiqing Guan, Xi Chen, and Xinfang Chen. "Sensitivity analysis of Xinanjiang rainfall–runoff model parameters: a case study in Lianghui, Zhejiang province, China." Hydrology Research 43, no. 1-2 (2012): 123–34. http://dx.doi.org/10.2166/nh.2011.131.

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The Xinanjiang rainfall–runoff model has been successfully applied in many humid and sub-humid areas in China since 1973. The wide application is due to the simple model structure, the clear physical meaning of the parameters and the well-defined model calibration procedure. However, due to a data scarcity problem and short runoff concentration time, its applications to small drainage basins are difficult. Therefore, we investigate the model application in Lianghui, a small drainage basin of Zhejiang province in China. By using generalized likelihood uncertainty estimation (GLUE) methodology,

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Kumar, Shailesh, Sarita Meshram, Rupesh Patil, and Sanjay Tignath. "Hypsometric Analysis Using Geographical Information System of Gour River Watershed, Jabalpur, Madhya Pradesh, India." Current World Environment 11, no. 1 (2016): 56–64. http://dx.doi.org/10.12944/cwe.11.1.07.

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Hypsometric analysis of drainage basins reveals the geological stage of watershed and is a measure of its maturity, indicating the susceptibility of the watershed to erosion. In the present study sub watersheds of Khurji Nala and Dala Nala watersheds which are tributaries of GourRiver located in Jabalpur district of Madhya Pradesh was considered as the case study area. The watersheds were delineated into sub watersheds and hypsometric analysis was carried out for all of them using the digital contour map, which was generated using Arc GIS. The hypsometric integral values of Khurji Nala and Dal

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Aga, Alemu O., Assefa M. Melesse, and Bayou Chane. "An Alternative Empirical Model to Estimate Watershed Sediment Yield Based on Hydrology and Geomorphology of the Basin in Data-Scarce Rift Valley Lake Regions, Ethiopia." Geosciences 10, no. 1 (2020): 31. http://dx.doi.org/10.3390/geosciences10010031.

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Physical-based soil erosion models are playing an important role in the assessment of soil erosion, transportation, and deposition in the watershed. Most of these models were developed for data-rich areas of the world and they need a measured data to calibrate and validate their results. To apply such physical-based models, the main factor hindering is the lack of measured sediment data. The amount of sediment in the fluvial systems is the result of hydro-geomorphological processes of a watershed and the nature of stream flows. Therefore, this study aims to develop an alternative empirical mod

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Oberdorff, Thierry, Murilo S. Dias, Céline Jézéquel, et al. "Unexpected fish diversity gradients in the Amazon basin." Science Advances 5, no. 9 (2019): eaav8681. http://dx.doi.org/10.1126/sciadv.aav8681.

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Using the most comprehensive fish occurrence database, we evaluated the importance of ecological and historical drivers in diversity patterns of subdrainage basins across the Amazon system. Linear models reveal the influence of climatic conditions, habitat size and sub-basin isolation on species diversity. Unexpectedly, the species richness model also highlighted a negative upriver-downriver gradient, contrary to predictions of increasing richness at more downriver locations along fluvial gradients. This reverse gradient may be linked to the history of the Amazon drainage network, which, after

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Guerra, Veronica, and Maurizio Lazzari. "Geomorphic Approaches to Estimate Short-Term Erosion Rates: An Example from Valmarecchia River System (Northern Apennines, Italy)." Water 12, no. 9 (2020): 2535. http://dx.doi.org/10.3390/w12092535.

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Studying fluvial dynamics and environments, GIS-based analyses are of fundamental importance to evaluate the network geometry and possible anomalies, and can be particularly useful to estimate modifications in processes and erosion rates. The aim of this paper is to estimate short-term erosion rates attributable to fluvial processes in two sample catchment sub-basins of the Marecchia river valley, by conducting quantitative morphometric analyses in order to calculate various descriptive parameters of the hierarchisation of the river networks and the mean turbid transport of streams (Tu). Sedim

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Syed, N. H., A. A. Rehman, D. Hussain, S. Ishaq, and A. A. Khan. "MORPHOMETRIC ANALYSIS TO PRIORITIZE SUB-WATERSHED FOR FLOOD RISK ASSESSMENT IN CENTRAL KARAKORAM NATIONAL PARK USING GIS/RS APPROACH." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-4/W4 (November 13, 2017): 367–71. http://dx.doi.org/10.5194/isprs-annals-iv-4-w4-367-2017.

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Morphometric analysis is vital for any watershed investigation and it is inevitable for flood risk assessment in sub-watershed basins. Present study undertaken to carry out critical evaluation and assessment of sub watershed morphological parameters for flood risk assessment of Central Karakorum National Park (CKNP), where Geographical information system and remote sensing (GIS &amp; RS) approach used for quantifying the parameter and mapping of sub watershed units. ASTER DEM used as a geo-spatial data for watershed delineation and stream network. Morphometric analysis carried out using sp

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Ene, Marian, Laura Tîrlă, and Gabriela Osaci-Costache. "Estimation of the Quaternary stream erosion in small drainage basins (Vâlcea sub-Carpathians and Olteţ Plateau, Romania)." Forum geografic XIII, no. 1 (2014): 5–11. http://dx.doi.org/10.5775/fg.2067-4635.2014.012.i.

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Kakarndee, Isared, and Ekasit Kositsakulchai. "Comparison between SWAT and SWAT+ for simulating streamflow in a paddy-field-dominated basin, northeast Thailand." E3S Web of Conferences 187 (2020): 06002. http://dx.doi.org/10.1051/e3sconf/202018706002.

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The performance of the well-known Soil and Water Assessment Tool (SWAT) and the new SWAT+ for streamflow simulation in a paddy- field-dominated basin was compared. The Lam Sioa River Basin, northeast Thailand (drainage area of 3,394 km2) was selected. The data inputs consisted of DEM, land use, soil, and climate (rainfall, temperature, sunshine hour, wind speed and humidity). The model parameters used the default values from SWAT database and daily simulation was conducted from 2005 to 2017. The division of sub-basins into “landscape units” is one of new features of SWAT+. The total number of

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Biasus, Cristiane, Luiz Ubiratan Hepp, Rogério Luis Cansian, Rozane Maria Restello, and Albanin Aparecida Mielniczki-Pereira. "Catalase activity in Smicridea McLachlan, 1871 (Insecta, Trichoptera) collected from natural and altered/impacted streams." Acta Limnologica Brasiliensia 27, no. 2 (2015): 160–64. http://dx.doi.org/10.1590/s2179-975x3714.

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Aim: We compare catalase activity in SmicrideaMcLachlan, 1871 (Insecta, Trichoptera) collected in natural and agricultural streams and correlates the enzyme pattern with metal content in the water.MethodsOrganisms were collected in sites classified as natural (riparian vegetation in buffer zone) and altered/impacted (agricultural land use in drainage area) environments, located at Cravo River and Campo River sub-basins (RS, Brazil). Next the collected larvae were identified and used to proteins quantification and catalase activity measure. The concentration of Mg, Cr, Cu, Pb and Cd in the wate

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Βρουχάκης, Ι., Κ. Βουβαλίδης, Α. Σφέικος, and Σ. Μαργώνη. "DRAINAGE NETWORK EVOLUTION OF THE PORTAIKOS RIVER (THESSALY)." Bulletin of the Geological Society of Greece 36, no. 2 (2018): 978. http://dx.doi.org/10.12681/bgsg.16900.

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Portaikos river is a tributary of Pinios River located in Thessaly. It drains the southern part of Thessaly basin, and specifically the south part of the district of Tricala. This region is located at the border with the district of Karditsa. Portaikos River drainage basin covers an area of 294 km2, which is 2.8 % of the total drainage basin of Pinios River. The direction of Portaikos river drainage basin extends from SW-NE. The evolution of Portaikos River drainage network presents some specific morphometric features. Its analysis required the use of digital data, which were analyzed with G.I

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Semmens, K. A., and J. M. Ramage. "Recent changes in spring snowmelt timing in the Yukon River basin detected by passive microwave satellite data." Cryosphere 7, no. 3 (2013): 905–16. http://dx.doi.org/10.5194/tc-7-905-2013.

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Abstract. Spring melt is a significant feature of high latitude snowmelt dominated drainage basins influencing hydrological and ecological processes such as snowmelt runoff and green-up. Melt duration, defined as the transition period from snowmelt onset until the end of the melt refreeze, is characterized by high diurnal amplitude variations (DAV) where the snowpack is melting during the day and refreezing at night, after which the snowpack melts constantly until depletion. Determining trends for this critical period is necessary for understanding how the Arctic is changing with rising temper

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Semmens, K. A., and J. M. Ramage. "Recent changes in spring snowmelt timing in the Yukon River Basin detected by passive microwave satellite data." Cryosphere Discussions 6, no. 5 (2012): 4455–83. http://dx.doi.org/10.5194/tcd-6-4455-2012.

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Abstract. Spring melt is a significant feature of high latitude snowmelt dominated drainage basins influencing hydrological and ecological processes such as snowmelt runoff and green-up. Melt duration, defined as the transition period from snowmelt onset until the end of the melt-refreeze, is characterized by high diurnal amplitude variations (DAV) where the snowpack is melting during the day and refreezing at night, after which the snowpack melts constantly until depletion. Determining trends for this critical period is necessary for understanding how the Arctic is changing with rising temper

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Almeida-Filho, Raimundo, Dilce F. Rossetti, Fernando P. Miranda, Francisco J. Ferreira, Clauzionor Silva, and Carlos Beisl. "Quaternary reactivation of a basement structure in the Barreirinhas Basin, Brazilian Equatorial Margin." Quaternary Research 72, no. 1 (2009): 103–10. http://dx.doi.org/10.1016/j.yqres.2009.02.010.

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AbstractThe Pirapemas Lineament is a remarkable 200-km-long, NE–SW trending structure in the Barreirinhas Basin, one of the several Brazilian coastal basins. This lineament splits the study area in two sectors of distinctive morphology, drainage patterns, and sedimentary covers. Terrain northward of the lineament presents a smooth topography with sub-parallel to sub-dendritic drainage patterns, whereas a dissected plateau characterized by incised valleys and rectangular drainage pattern occurs southward, suggesting a structural control by joints and faults. Geological field data, crossed with

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Wen, Jiahong, Kenneth C. Jezek, Andrew J. Monaghan, Bo Sun, Jiawen Ren, and Philippe Huybrechts. "Accumulation variability and mass budgets of the Lambert Glacier-Amery Ice Shelf system, East Antarctica, at high elevations." Annals of Glaciology 43 (2006): 351–60. http://dx.doi.org/10.3189/172756406781812249.

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AbstractThe temporal and spatial variability of the annual accumulation rate and the mass budgets of five sub-basins of the Lambert Glacier-Amery Ice Shelf system (LAS), East Antarctica, at high elevations are assessed using a variety of datasets derived from field measurements and modeling. The annual temporal variations of the accumulation rate for four cores from the west and east sides of the LAS are around ±34%. Decadal fluctuation of the accumulation from the DT001 firn core drops to ±10%, and the 30 year fluctuation to ±5%, which is assumed to contain the information about the regional

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Panda, Balakrushna, Madavi Venkatesh, Bijendra Kumar, and Anshumali. "A GIS-based Approach in Drainage and Morphometric Analysis of Ken River Basin and Sub-basins, Central India." Journal of the Geological Society of India 93, no. 1 (2019): 75–84. http://dx.doi.org/10.1007/s12594-019-1125-9.

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Jiménez Ariza, Martínez, Muñoz, et al. "A Multicriteria Planning Framework to Locate and Select Sustainable Urban Drainage Systems (SUDS) in Consolidated Urban Areas." Sustainability 11, no. 8 (2019): 2312. http://dx.doi.org/10.3390/su11082312.

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The implementation of sustainable urban drainage systems (SUDS) is increasing due to their advantages, which transcend runoff control. As a result, it is important to find the appropriate SUDS locations to maximize the benefits for the watershed. This study develops a multiscale methodology for consolidated urban areas that allows the analysis of environmental, social, and economic aspects of SUDS implementation according to multiple objectives (i.e., runoff management, water quality improvements, and amenity generation). This methodology includes three scales: (a) citywide, (b) local, and (c)

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FERRARIS, CARL J., and RICHARD P. VARI. "Review of the African catfish genus Andersonia (Teleostei: Siluriformes)." Zootaxa 3210, no. 1 (2012): 39. http://dx.doi.org/10.11646/zootaxa.3210.1.3.

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Fishes of the catfish genus Andersonia (Amphiliidae, Doumeinae) are distributed widely across the northern sub-Saharanportion of Africa that is called the Nilo-Sudan Bioregion. Recent literature indicated that either one or two species of An-dersonia occur in the four drainage basins (upper Niger, upper Nile, Omo, and Lake Chad) in which the genus has beenfound. Our study failed to find any differences in the samples from those basins, as we therefore treat them as populationsof a single species, A. leptura, which is redescribed based on extensive series of specimens from across its range. The

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Alcaraz, Samantha A., Christophe Sannier, Antonio C. T. Vitorino, and Omar Daniel. "Comparison of methodologies for automatic generation of limits and drainage networks for hidrographic basins." Revista Brasileira de Engenharia Agrícola e Ambiental 13, no. 4 (2009): 369–75. http://dx.doi.org/10.1590/s1415-43662009000400001.

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The objective of this work was to compare methodologies for the automatic generation of limits and drainage networks, using a geographical information system for basins of low relief variation, such as the Dourados catchment area. Various data/processes were assessed, especially the ArcHydro and AVSWAT interfaces used to process 50 m resolution DTMs formed from the interpolation of digitalized contour lines using ArcInfo, ArcView and Spring GIS, and a 90 m resolution SRTM DTM acquired by interferometry radar. Their accuracy was estimated based upon the pre-processing of small basic sub-basin u

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Pryer, L. L., K. K. Romine, T. S. Loutit, and R. G. Barnes. "CARNARVON BASIN ARCHITECTURE AND STRUCTURE DEFINED BY THE INTEGRATION OF MINERAL AND PETROLEUM EXPLORATION TOOLS AND TECHNIQUES." APPEA Journal 42, no. 1 (2002): 287. http://dx.doi.org/10.1071/aj01016.

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The Barrow and Dampier Sub-basins of the Northern Carnarvon Basin developed by repeated reactivation of long-lived basement structures during Palaeozoic and Mesozoic tectonism. Inherited basement fabric specific to the terranes and mobile belts in the region comprise northwest, northeast, and north–south-trending Archaean and Proterozoic structures. Reactivation of these structures controlled the shape of the sub-basin depocentres and basement topography, and determined the orientation and style of structures in the sediments.The Lewis Trough is localised over a reactivated NEtrending former s

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Han, L., C. Y. Du, and Z. H. Liu. "NEOTECTONIC SIGNIFICANCE REVEALED BY STREAM LENGTH – GRADIENT INDEX OF THE DAXI RIVER BASIN IN THE SOUTHERN MARGIN OF ORDOS, CHINA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W10 (February 8, 2020): 967–73. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w10-967-2020.

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Abstract. Since the late Cenozoic era, due to the impact of the Indo- Eurasian plate collision and the northeasterward compression of the Tibetan Plateau, a series of extensional sub-basins and tectonic belts have been formed at the periphery of the Ordos block. Watershed geomorphology plays an important role in studying the formation of rock uplift and river erosion, and are recording the surface evidence on landforms evolution. In this paper, twenty-eight sub-basins and tributaries around Daxihe River, locating at the southern margin of Ordos, were extracted from SRTM1 DEM data. Combined wit

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Batlle, José Martínez. "Drainage Rearrangement as a Driver of Geomorphological Evolution During the Upper Pleistocene in a Small Tropical Basin." Journal of Geography and Geology 11, no. 2 (2019): 1. http://dx.doi.org/10.5539/jgg.v11n2p1.

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The development of river networks in contexts where intense tectonic activity converges with great lithological variability, such as the Ocoa River Basin in the south of the Dominican Republic, usually hosts excellent examples of drainage rearrangement. This mechanism is defined as a transfer of part or all of a river&rsquo;s flow to another river. According to the process involved, drainage rearrangement may be classified in one of four categories: stream capture, river diversion, beheading and, more recently, karst piracy. The Parra River Basin (29.5 square kilometers), part of the Ocoa

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Guimberteau, M., A. Ducharne, P. Ciais, et al. "Testing conceptual and physically based soil hydrology schemes against observations for the Amazon Basin." Geoscientific Model Development 7, no. 3 (2014): 1115–36. http://dx.doi.org/10.5194/gmd-7-1115-2014.

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Abstract. This study analyzes the performance of the two soil hydrology schemes of the land surface model ORCHIDEE in estimating Amazonian hydrology and phenology for five major sub-basins (Xingu, Tapajós, Madeira, Solimões and Negro), during the 29-year period 1980–2008. A simple 2-layer scheme with a bucket topped by an evaporative layer is compared to an 11-layer diffusion scheme. The soil schemes are coupled with a river routing module and a process model of plant physiology, phenology and carbon dynamics. The simulated water budget and vegetation functioning components are compared with s

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Clarke, R. T. "Hydrological prediction in a non-stationary world." Hydrology and Earth System Sciences 11, no. 1 (2007): 408–14. http://dx.doi.org/10.5194/hess-11-408-2007.

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Abstract. The paper discusses evidence that common assumptions in the analysis of hydrological time series (homogeneous variability in random fluctuations about a constant mean value) may not be appropriate for some South American drainage basins. Relatively rapid changes have occurred, and are occurring, as a consequence of replacing mature forest by short crops and urban development. Some research claims to have detected non-linear trends in streamflow in rivers draining the south-eastern part of the sub-continent, together with decadal fluctuations and interannual peaks at ENSO timescales.

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Musch, Tilman. "Exploring Environments through Water: An Ethno-Hydrography of the Tibesti Mountains (Central Sahara)." Ethnobiology Letters 12, no. 1 (2021): 1–11. http://dx.doi.org/10.14237/ebl.12.1.2021.1709.

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An ethno-hydrography, studying the organization of space through water, can provide a key to understanding how people conceive their environments in a holistic way. Based on mapping as a dynamic process, different representations of river systems among the Tubu Teda, who live in the Tibesti mountains (Central Sahara), are described in this paper. I first discuss a large-scale subdivision of the mountains into drainage basins, and then representations of a sub-regional and local river system, including an engraving on a sandstone rock. Finally, I discuss these case studies in the context of hol

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Musch, Tilman. "Exploring Environments through Water: An Ethno-Hydrography of the Tibesti Mountains (Central Sahara)." Ethnobiology Letters 12, no. 1 (2021): 1–11. http://dx.doi.org/10.14237/ebl.12.1.2021.1709.

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An ethno-hydrography, studying the organization of space through water, can provide a key to understanding how people conceive their environments in a holistic way. Based on mapping as a dynamic process, different representations of river systems among the Tubu Teda, who live in the Tibesti mountains (Central Sahara), are described in this paper. I first discuss a large-scale subdivision of the mountains into drainage basins, and then representations of a sub-regional and local river system, including an engraving on a sandstone rock. Finally, I discuss these case studies in the context of hol

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Cornaton, F., and P. Perrochet. "Groundwater age, life expectancy and transit time distributions in advective–dispersive systems; 2. Reservoir theory for sub-drainage basins." Advances in Water Resources 29, no. 9 (2006): 1292–305. http://dx.doi.org/10.1016/j.advwatres.2005.10.010.

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Heidtke, T. M., and M. T. Auer. "Application of a GIS-Based Nonpoint Source Nutrient Loading Model for Assessment of Land Development Scenarios and Water Quality in Owasco Lake, New York." Water Science and Technology 28, no. 3-5 (1993): 595–604. http://dx.doi.org/10.2166/wst.1993.0464.

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The magnitude and water quality implications of nonpoint source phosphorus loadings to Owasco Lake (New York) are evaluated through the application of a methodology which links geographic characteristics, longterm average runoff loads and a set of critical lakewide water quality response parameters. The approach utilizes the Universal Soil Loss Equation together with empirical loading functions to derive representative phosphorus export coefficients for the local drainage system. Cumulative loadings from individual sub-basins within the watershed serve as input to a simple water quality model

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Salami, Adebayo Wahab, Oseni Taiwo Amoo, Joshiah Adetayo Adeyemo, Abdulrasaq Apalando Mohammed, and Adeniyi Ganiyu Adeogun. "Morphometrical Analysis and Peak Runoff Estimation for the Sub-Lower Niger River Basin, Nigeria." Slovak Journal of Civil Engineering 24, no. 1 (2016): 6–16. http://dx.doi.org/10.1515/sjce-2016-0002.

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AbstractThis study utilized Spatial Information Technology (SIT) such as Remote Sensing (RS), a Geographical Information System (GIS), the Global Positioning System (GPS) and a high-resolution Digital Elevation Model (DEM) for a morphometrical analysis of five sub-basins within the Lower Niger River Basin, Nigeria. Morpho-metrical parameters, such as the total relief, relative relief, relief ratio, ruggedness number, texture ratio, elongation ratio, circularity ratio, form factor ratio, drainage density, stream frequency, sinuosity factor and bifurcation ratio, have been computed and analyzed.

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Gachango, Florence Gathoni, and Brian H. Jacobsen. "How to introduce new technologies to reduce nutrient losses: a case of Danish agricultural constructed wetlands." Water Policy 19, no. 3 (2017): 404–22. http://dx.doi.org/10.2166/wp.2017.015.

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The Water Framework Directive (WFD) focuses on reduction of nutrients in individual water bodies. Innovative drainage filter technologies currently being tested in Denmark could facilitate nutrient reductions at the sub-river basins and catchment levels. The implementation strategy for these technologies, however, remains a challenge. Using both primary and secondary data, this paper presents an in-depth analysis of the role of these technologies in implementation of the WFD in Denmark. Concepts of impact assessment are used to identify the most suitable approach for incorporating these techno

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