To see the other types of publications on this topic, follow the link: Lake water level variations.

Journal articles on the topic 'Lake water level variations'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Lake water level variations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Volchak, Aleksandr A., and Ivan Kirvel. "Lake water level variations in Belarus." Limnological Review 13, no. 2 (2013): 115–26. http://dx.doi.org/10.2478/limre-2013-0013.

Full text
Abstract:
Abstract Lake level is one of the most important lake characteristics which allows the results of different effects to be identified and detected. In this work time series of the water levels of Belorussian lakes were analysed in order to detect pattern variations, to evaluate quantitatively the transformation of the hydrological regime of lake ecosystems and to develop prediction models. The possibility of plotting predicting models of lake water levels one year in advance was shown. The complication in plotting predicting models is in its individuality, the huge volume of initial data and th
APA, Harvard, Vancouver, ISO, and other styles
2

Ivkina, N. I. "WATER LEVEL VARIATIONS ON THE BALKASH LAKE IN THE MODERN PERIOD." Hydrometeorology and ecology 106, no. 3 (2022): 6–13. http://dx.doi.org/10.54668/2789-6323-2022-106-3-6-13.

Full text
Abstract:
The article considers the nature of long-term and storm surge fluctuations in the level on the Balkash Lake. Statistics are presented and their seasonal distribution in different parts of the lake is described. It is noted that a change in the level entails a change in the morphometric characteristics of the lake; there is a tendency to reduce the area and, accordingly, the water volume of lake. The most vulnerable is the southern coast, which is a low-lying accumulative sandy plain. With wind surges, the coast is flooded in a strip from several hundred meters to several kilometers. Even fluct
APA, Harvard, Vancouver, ISO, and other styles
3

Du, Yan, Mo Wen Xie, and Man Hu. "Mechanism of Lake Area Variations and Water Level Changes in Nam Co Lake." Advanced Materials Research 838-841 (November 2013): 1685–92. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1685.

Full text
Abstract:
The Tibetan Plateau is one of the best areas for the study because of its geographical location as well as human disturbance. AS one of the largest lakes in the Qinghai-Tibet Plateau, Nam Co Lake seepage underestimated for a long time. By linear regression analysis of hydrological data from 1970-2005, we qualitatively understands the water level operation mechanism. The result shows that the model deviates from 2000, compared with the actual water level. Correlation analysis indicates the Nam Co Lake seepage flow reduces after 2000. The Three Gorges project resulted in the uplift of the downst
APA, Harvard, Vancouver, ISO, and other styles
4

Little, Sarina, Tamlin M. Pavelsky, Faisal Hossain, et al. "Monitoring Variations in Lake Water Storage with Satellite Imagery and Citizen Science." Water 13, no. 7 (2021): 949. http://dx.doi.org/10.3390/w13070949.

Full text
Abstract:
Despite lakes being a key part of the global water cycle and a crucial water resource, there is limited understanding of whether regional or lake-specific factors control water storage variations in small lakes. Here, we study groups of small, unregulated lakes in North Carolina, Washington, Illinois, and Wisconsin, USA using lake level measurements gathered by citizen scientists and lake surface area measurements from optical satellite imagery. We show the lake level measurements to be highly accurate when compared to automated gauges (mean absolute error = 1.6 cm). We compare variations in l
APA, Harvard, Vancouver, ISO, and other styles
5

Mangi, Halima Omari. "Water Level Fluctuation Effect on Fish Reproduction Success." International Journal of Ecology 2024 (April 29, 2024): 1–13. http://dx.doi.org/10.1155/2024/4876582.

Full text
Abstract:
Alteration of water levels of the lake/reservoir due to changes in river discharges, upstream abstraction, and drawdown regulation due to hydropower generation has been reported as among the major challenges to fish physiology and ultimately reproduction. Variations in lake/reservoir water levels influence biodiversity and the abundance of lake/reservoir biota. Variations have the greatest impacts in the littoral zones hence, interfering with fish spawning, incubation, and hatching of eggs, as well as the development of larvae, postlarvae, and juveniles. This particular paper reviews the liter
APA, Harvard, Vancouver, ISO, and other styles
6

Frondini, Dragoni, Morgantini, et al. "An Endorheic Lake in a Changing Climate: Geochemical Investigations at Lake Trasimeno (Italy)." Water 11, no. 7 (2019): 1319. http://dx.doi.org/10.3390/w11071319.

Full text
Abstract:
Lake Trasimeno is a shallow, endorheic lake located in central Italy. It is the fourth Italian largest lake and is one of the largest endorheic basins in western Europe. Because of its shallow depth and the absence of natural outflows, the lake, in historical times, alternated from periods of floods to strong decreases of the water level during periods of prolonged drought. Lake water is characterised by a NaCl composition and relatively high salinity. The geochemical and isotopic monitoring of lake water from 2006 to 2018 shows the presence of well-defined seasonal trends, strictly correlated
APA, Harvard, Vancouver, ISO, and other styles
7

Cui, Bu-Li, and Xiao-Yan Li. "The impact of climate changes on water level of Qinghai Lake in China over the past 50 years." Hydrology Research 47, no. 2 (2015): 532–42. http://dx.doi.org/10.2166/nh.2015.237.

Full text
Abstract:
Understanding the variation regularity of lake level and the potential driver factors can provide insights into lake conservation and management. In this study, inter- and inner-annual variations of lake level in Qinghai Lake during the period 1961–2012 were analyzed to determine whether climatic factor or runoff factor were responsible for the variations. The results showed that lake level decreased significantly during the period 1961–2004 at a rate of −7.6 cm/yr, while increasing significantly during the period 2004–2012 at a rate of 14 cm/yr, and all were significant at a p value of &l
APA, Harvard, Vancouver, ISO, and other styles
8

Suhendra, Suhendra. "Reducing Lake Water Pollution Level With Media Filter Variations." BUMI: International Journal of Environmental Reviews 1, no. 02 (2023): 50–57. http://dx.doi.org/10.30631/bumi.v1i02.2224.

Full text
Abstract:
Most of the surface water such as rivers, lakes, or freshwater swamps were mostly polluted by human activities. This research analyzed the quality of surface lake water located in Gunugkidul Yogyakarta and the treatment of polluted water with three different filtration media variations based on the value obtained from the calculation of Water Quality Index (WQI) methodology. Based on the value obtained from water quality calculations using the Water Quality Index (WQI) system, the value of Winong Lake water ranges between 25.41-44.24 or is at a fair water quality level. Filter A reduces turbid
APA, Harvard, Vancouver, ISO, and other styles
9

Suhendra, Suhendra. "Reducing Lake Water Pollution Level With Media Filter Variations." BUMI: International Journal of Environmental Reviews 1, no. 02 (2023): 50–57. http://dx.doi.org/10.30631/102.50-57.

Full text
Abstract:
Most of the surface water such as rivers, lakes, or freshwater swamps were mostly polluted by human activities. This research analyzed the quality of surface lake water located in Gunugkidul Yogyakarta and the treatment of polluted water with three different filtration media variations based on the value obtained from the calculation of Water Quality Index (WQI) methodology. Based on the value obtained from water quality calculations using the Water Quality Index (WQI) system, the value of Winong Lake water ranges between 25.41-44.24 or is at a fair water quality level. Filter A reduces turbid
APA, Harvard, Vancouver, ISO, and other styles
10

Fang, Li, Rubinato, et al. "Analysis of Long-Term Water Level Variations in Qinghai Lake in China." Water 11, no. 10 (2019): 2136. http://dx.doi.org/10.3390/w11102136.

Full text
Abstract:
Qinghai Lake is the largest inland saline lake on the Tibetan Plateau. Climate change and catchment modifications induced by human activities are the main drivers playing a significant role in the dramatic variation of water levels in the lake (Δh); hence, it is crucial to provide a better understanding of the impacts caused by these phenomena. However, their respective contribution to and influence on water level variations in Qinghai Lake are still unclear and without characterizing them, targeted measures for a more efficient conservation and management of the lake cannot be implemented. In
APA, Harvard, Vancouver, ISO, and other styles
11

Ma, Weiyao, Ling Bai, Weiqiang Ma, et al. "Interannual and Monthly Variability of Typical Inland Lakes on the Tibetan Plateau Located in Three Different Climatic Zones." Remote Sensing 14, no. 19 (2022): 5015. http://dx.doi.org/10.3390/rs14195015.

Full text
Abstract:
Changes in lake water volume can reflect variations in regional hydrometeorology and are a sensitive indicator of regional environmental change. The Tibetan Plateau, referred to as the “Asian Water Tower”, has a large number of lakes. These lakes are in a natural state and are relatively unaffected by human activities. Understanding the changes to lake water volume is a key issue for the study of lake-atmosphere interactions and the effects of lake expansion and contraction on regional climate. By using multisource remote sensing and water level observations, this study systematically analyzed
APA, Harvard, Vancouver, ISO, and other styles
12

Steiakakis, Emmanouil, Georgios Syllignakis, Michail Galetakis, et al. "Pit Lake Slope Stability under Water Level Variations." Geosciences 14, no. 6 (2024): 142. http://dx.doi.org/10.3390/geosciences14060142.

Full text
Abstract:
This paper presents the results of a geotechnical investigation regarding the slope stability in a pit lake, emphasizing the impact of water level variations. Advanced analysis techniques were utilized for this study. The research was performed by using fully coupled flow-deformation analyses. For the fully coupled approach, Bishop’s effective-stress equation was used, and for the description of soil hydraulic behavior, the Van Genuchten’s model was applied. The analysis of slope stability associated with reservoir water level changes revealed that the slope tended to become unstable as the wa
APA, Harvard, Vancouver, ISO, and other styles
13

Branchu, Ph, and L. Bergonzini. "Chloride concentrations in Lake Tanganyika: an indicator of the hydrological budget?" Hydrology and Earth System Sciences 8, no. 2 (2004): 256–65. http://dx.doi.org/10.5194/hess-8-256-2004.

Full text
Abstract:
Abstract. On a historical time scale, this paper investigates the effect of hydroclimatic variations on the surface water salinity of Lake Tanganyika, the largest African lake and an open freshwater reservoir. Through annual water and chemical budgets, based on original and bibliographic data, a tracer of the water regime is proposed. Chloride, an inert and conservative element, seems to be the best candidate although its contribution to salinity is small; its use as a tracer of the water regime is validated on seasonal and historical time scales. Seasonally, a monthly water and chloride budge
APA, Harvard, Vancouver, ISO, and other styles
14

Somogyvári, Márk, Dieter Scherer, Frederik Bart, Ute Fehrenbach, Akpona Okujeni, and Tobias Krueger. "A hybrid data-driven approach to analyze the drivers of lake level dynamics." Hydrology and Earth System Sciences 28, no. 18 (2024): 4331–48. http://dx.doi.org/10.5194/hess-28-4331-2024.

Full text
Abstract:
Abstract. Lakes are directly exposed to climate variations as their recharge processes are driven by precipitation and evapotranspiration, and they are also affected by groundwater trends, changing ecosystems and changing water use. In this study, we present a downward model development approach that uses models of increasing complexity to identify and quantify the dependence of lake level variations on climatic and other factors. The presented methodology uses high-resolution gridded weather data inputs that were obtained from dynamically downscaled ERA5 reanalysis data. Previously missing fl
APA, Harvard, Vancouver, ISO, and other styles
15

Li, Yunliang, Jing Yao, Guizhang Zhao, and Qi Zhang. "Evidences of hydraulic relationships between groundwater and lake water across the large floodplain wetland of Poyang Lake, China." Water Supply 18, no. 2 (2017): 698–712. http://dx.doi.org/10.2166/ws.2017.150.

Full text
Abstract:
Abstract Hydraulic relationship between wetlands and lakes has become an important topic for the scientific and decision-making communities. Poyang Lake, an open freshwater lake in China, and the extensive floodplain wetland surrounding the lake, plays an important role in protecting the biodiversity of this internationally recognized wetland system. This paper is the first field-based study into an investigation of the groundwater dynamics in the floodplain wetland and the associated hydraulic relationship with the lake using hydrological, hydrochemical and stable isotope evidence, as exempli
APA, Harvard, Vancouver, ISO, and other styles
16

Xu, Jiaxing, Hongxiang Fan, Minghan Luo, Piji Li, Taeseop Jeong, and Ligang Xu. "Transformer Based Water Level Prediction in Poyang Lake, China." Water 15, no. 3 (2023): 576. http://dx.doi.org/10.3390/w15030576.

Full text
Abstract:
Water level is an important indicator of lake hydrology characteristics, and its fluctuation significantly affects lake ecosystems. In recent years, deep learning models have shown their superiority in the long-time range prediction of hydrology processes, while the application of deep learning models with the attention mechanism for lake water level prediction is very rare. In this paper, taking Poyang Lake as a case study, the transformer neural network model is applied to examine the model performance in lake water level prediction, to explore the effects of the Yangtze River on lake water
APA, Harvard, Vancouver, ISO, and other styles
17

Li, Peng, Hui Li, Fang Chen, and Xiaobin Cai. "Monitoring Long-Term Lake Level Variations in Middle and Lower Yangtze Basin over 2002–2017 through Integration of Multiple Satellite Altimetry Datasets." Remote Sensing 12, no. 9 (2020): 1448. http://dx.doi.org/10.3390/rs12091448.

Full text
Abstract:
Satellite altimetry has been effectively used for monitoring lake level changes in recent years. This work focused on the integration of multiple satellite altimetry datasets from ICESat-1, Envisat and Cryosat-2 for the long-term (2002–2017) observation of lake level changes in the middle and lower Yangtze River Basin (MLYB). Inter-altimeter biases were estimated by using the gauged daily water level data. It showed that the average biases of ICESat-1 and Cryosat-2 with respect to Envisat were 6.7 cm and 3.1 cm, respectively. The satellite-derived water levels were evaluated against the gauged
APA, Harvard, Vancouver, ISO, and other styles
18

Huang, Feng, Bo Yan, Xiao Zhang, et al. "Water Regime Evolution of Large Seasonal Lakes: Indicators for Characterization and an Application in Poyang Lake, China." International Journal of Environmental Research and Public Health 15, no. 11 (2018): 2598. http://dx.doi.org/10.3390/ijerph15112598.

Full text
Abstract:
Impacted by ongoing climate change and anthropogenic activities, large seasonal lakes experience water regime evolution, which raises challenges for the management of water resources and environment. The water regime evolution refers to the spatial and temporal alterations in the hydrological features of lakes. Characterizing the lake water regime and its alteration may help policymakers design effective adaption strategies. Therefore, total 47 hydrological indicators were proposed, considering intra-annual fluctuations, flood and drought features, and rate and frequency of water level variati
APA, Harvard, Vancouver, ISO, and other styles
19

Ricko, Martina, James A. Carton, and Charon Birkett. "Climatic Effects on Lake Basins. Part I: Modeling Tropical Lake Levels." Journal of Climate 24, no. 12 (2011): 2983–99. http://dx.doi.org/10.1175/2010jcli3602.1.

Full text
Abstract:
Abstract The availability of satellite estimates of rainfall and lake levels offers exciting new opportunities to estimate the hydrologic properties of lake systems. Combined with simple basin models, connections to climatic variations can then be explored with a focus on a future ability to predict changes in storage volume for water resources or natural hazards concerns. This study examines the capability of a simple basin model to estimate variations in water level for 12 tropical lakes and reservoirs during a 16-yr remotely sensed observation period (1992–2007). The model is constructed wi
APA, Harvard, Vancouver, ISO, and other styles
20

Tsybekmitova, Gazhit Ts, Larisa D. Radnaeva, Natalya A. Tashlykova, et al. "Phytocenosis biodiversity at various water levels in mesotrophic Lake Arakhley, Lake Baikal basin, Russia." PeerJ 9 (June 18, 2021): e11628. http://dx.doi.org/10.7717/peerj.11628.

Full text
Abstract:
Small lakes have lower water levels during dry years as was the case in 2000–2020. We sought to show the biodiversity of plant communities at various water levels in Lake Arakhley. Changes in moisture content are reflected in the cyclical variations of the water level in the lake, which decreased approximately 2 m in 2017–2018. These variations affect the biological diversity of the aquatic ecosystems. We present the latest data on the state of the plant communities in this mesotrophic lake located in the drainage basin of Lake Baikal. Lake Arakhley is a freshwater lake with low mineral conten
APA, Harvard, Vancouver, ISO, and other styles
21

Dugas, Daniel P. "Late Quaternary Variations in the Level of Paleo-Lake Malheur, Eastern Oregon." Quaternary Research 50, no. 3 (1998): 276–82. http://dx.doi.org/10.1006/qres.1998.2005.

Full text
Abstract:
The highest shoreline features of paleo-Lake Malheur are undated gravelly barrier beaches south of Harney Lake that lie ca. 3.5 m higher than the hydrographic outlet of Harney Basin at Malheur Gap (1254 m). The earliest Quaternary record for Lake Malheur consists of occurrences of water-deposited tephra dated to ca. 70,000–80,000 yr ago. The next identified lake interval is dated by shells with ages of ca. 32,000 and 29,500 yr B.P. No dates are available for the terminal-Pleistocene Lake Malheur. Lake(s) were present between ca. 9600 and 7400 yr B.P., although periodic low levels or desiccatio
APA, Harvard, Vancouver, ISO, and other styles
22

Li, Mengfan, Qi Zhang, Yunliang Li, Jing Yao, and Zhiqiang Tan. "Inter-annual variations of Poyang Lake area during dry seasons: characteristics and implications." Hydrology Research 47, S1 (2016): 40–50. http://dx.doi.org/10.2166/nh.2016.308.

Full text
Abstract:
Variations in a lake area constitute an important indicator of the modifications of the lake hydrology. This paper explores the inter-annual variations of the Poyang Lake area during the dry seasons occurring within the 1961 to 2010 period and further quantifies the severity of dryness recently endured during the 2000s. A physically based hydrodynamic model of Poyang Lake established the relation between the lake area and lake level. The lake area was calculated using the observed lake water level. Results indicated the average lake area in the dry seasons was 1,015 km2. There was a considerab
APA, Harvard, Vancouver, ISO, and other styles
23

Chen, Jun, and Zheng Duan. "Monitoring Spatial-Temporal Variations of Lake Level in Western China Using ICESat-1 and CryoSat-2 Satellite Altimetry." Remote Sensing 14, no. 22 (2022): 5709. http://dx.doi.org/10.3390/rs14225709.

Full text
Abstract:
The lakes in the arid or semi-arid regions of western China are more sensitive to climate changes, and lake levels are considered as a direct indicator of regional climate variability. In this study, we combined satellite altimetry data from ICESat-1 with a smaller footprint and higher accuracy (compared to radar altimetry) and CryoSat-2 with a higher resolution in the along-track direction to monitor lake levels in western China and their trends over a long time period from 2003 to 2021. Our satellite altimetry derived lake levels were well-validated by comparing them against in situ measurem
APA, Harvard, Vancouver, ISO, and other styles
24

Long, Yuannan, Rong Tang, Changshan Wu, Changbo Jiang, and Shixiong Hu. "Estimating Real-Time Water Area of Dongting Lake Using Water Level Information." Water 11, no. 6 (2019): 1240. http://dx.doi.org/10.3390/w11061240.

Full text
Abstract:
Dongting Lake, the second largest freshwater lake in China, is an important water source for the Yangtze River Basin. The water area of Dongting Lake fluctuates significantly daily, which may cause flooding and other relevant disasters. Although remote sensing techniques may provide lake area estimates with reasonable accuracy, they are not available in real-time and may be susceptible to weather conditions. To address this issue, this paper attempted to examine the relationship between lake area and the water levels at the hydrological stations. Multi-temporal water area data were derived thr
APA, Harvard, Vancouver, ISO, and other styles
25

Lei, Yanbin, Tandong Yao, Kun Yang, Yaoming Ma, and Broxton W. Bird. "Contrasting hydrological and thermal intensities determine seasonal lake-level variations – a case study at Paiku Co on the southern Tibetan Plateau." Hydrology and Earth System Sciences 25, no. 6 (2021): 3163–77. http://dx.doi.org/10.5194/hess-25-3163-2021.

Full text
Abstract:
Abstract. Evaporation from hydrologically closed lakes is one of the largest components of the lake water budget; however, its effects on seasonal lake-level variations remain unclear on the Tibetan Plateau (TP) due to a lack of comprehensive observations. In this study, weekly lake evaporation and its effects on seasonal lake-level variations are investigated at Paiku Co on the southern TP using in situ observations of thermal structure and hydrometeorology (2015–2018). Lake evaporation from Paiku Co was estimated to be 975±142 mm during the ice-free period (May to December), characterized by
APA, Harvard, Vancouver, ISO, and other styles
26

Lin, Yi, Xin Li, Tinghui Zhang, et al. "Water Volume Variations Estimation and Analysis Using Multisource Satellite Data: A Case Study of Lake Victoria." Remote Sensing 12, no. 18 (2020): 3052. http://dx.doi.org/10.3390/rs12183052.

Full text
Abstract:
The spatiotemporal changes of lake water resources objectively reflect not only the process of the water resources balance, but also the ecological environment changes in the lake area. In recent decades, climate changes and human activities have caused great impacts on the spatial distribution of the earth’s water resources and the spatiotemporal process of the surface water cycle, which has caused a series of ecological crises and environmental problems, such as the drying-up of inland lakes, the disappearance of the oasis, water shortage or flooding and water pollution. Therefore, monitorin
APA, Harvard, Vancouver, ISO, and other styles
27

Velpuri, N. M., G. B. Senay, and K. O. Asante. "A multi-source satellite data approach for modelling Lake Turkana water level: calibration and validation using satellite altimetry data." Hydrology and Earth System Sciences 16, no. 1 (2012): 1–18. http://dx.doi.org/10.5194/hess-16-1-2012.

Full text
Abstract:
Abstract. Lake Turkana is one of the largest desert lakes in the world and is characterized by high degrees of inter- and intra-annual fluctuations. The hydrology and water balance of this lake have not been well understood due to its remote location and unavailability of reliable ground truth datasets. Managing surface water resources is a great challenge in areas where in-situ data are either limited or unavailable. In this study, multi-source satellite-driven data such as satellite-based rainfall estimates, modelled runoff, evapotranspiration, and a digital elevation dataset were used to mo
APA, Harvard, Vancouver, ISO, and other styles
28

Xing, Naichen, Fuping Gan, Bokun Yan, et al. "Dynamic Monitoring and Change Analysis of Lake Area on the Inner-Mongolian Plateau over the Past 22 Years." Remote Sensing 16, no. 12 (2024): 2210. http://dx.doi.org/10.3390/rs16122210.

Full text
Abstract:
Lakes are essential components of the terrestrial water cycle. Their size and quantity reflect natural climate change and anthropogenic activities in time. Lakes on the Inner-Mongolian Plateau (IMP) have experienced significant changes in recent decades, but the current situation remains elusive. In this study, we conducted multi-decadal intensive monitoring of lake area and performed comprehensive variation analysis on the IMP. The study involved pre-processing, lake area extraction, post-processing, and lake area analysis procedures using multi-source satellite images. The results reveal the
APA, Harvard, Vancouver, ISO, and other styles
29

Onzere, Maxwell, Elijah Biamah, and Obiero Paul. "ANALYSIS OF THE IMPACTS OF CLIMATE CHANGE ON RISING WATER LEVELS OF LAKE NAKURU." Journal of Engineering in Agriculture and the Environment 8, no. 3 (2022): 11. http://dx.doi.org/10.37017/jeae.v8i3.31.

Full text
Abstract:
Lake Nakuru is one of the rift valley lakes that has experienced flooding occasioned by climate change and catchment areas degradation. The increasing water levels have been a great threat to livelihoods and flora and fauna, to the extent of the lake experiencing flamingoes’ migration. There have been attempts to establish the causes of flooding, with some scientists attributing the phenomenon to tectonic movements and geothermal power plant activities. This research aimed at studying the impact of climate change on the rising water levels of the lake. The objective of this study included asse
APA, Harvard, Vancouver, ISO, and other styles
30

MOUSSAOUI, A., M. A. AZIZ-ALAOUI, and S. BASSAID. "PREDATOR–PREY DYNAMICS WITH SEASONAL WATER-LEVEL FLUCTUATIONS." Journal of Biological Systems 26, no. 04 (2018): 495–510. http://dx.doi.org/10.1142/s0218339018500225.

Full text
Abstract:
Water level in rivers, lakes and reservoirs has great influence on the interactions between prey and predator fish. Indeed, the increase of the water volume hinders the capture of the prey by the predator. The same reasoning applies when there is a decrease in the volume of water, favoring the capture of the prey by the predator. In this paper, we consider a seasonally varying predator–prey model to study the influence of water-level variations on the interaction between two species of fishes in an artificial lake. A seasonal variation of the water-level is introduced in the predation rate tak
APA, Harvard, Vancouver, ISO, and other styles
31

Li, Donglin, Fengqin Chang, Xinyu Wen, Lizeng Duan, and Hucai Zhang. "Seasonal Variations in Water Quality and Algal Blooming in Hypereutrophic Lake Qilu of Southwestern China." Water 14, no. 17 (2022): 2611. http://dx.doi.org/10.3390/w14172611.

Full text
Abstract:
Understanding the spatiotemporal distributions and variation characteristics of water quality parameters is crucial for ecosystem restoration and management of lakes, in particular, Lake Qilu (QL), a typical plateau shallow lake on the Yunnan-Guizhou Plateau, southwestern China. To identify the main causes of harmful algal blooming and continuous water quality decline, the total phosphorus (TP), total nitrogen (TN), water temperature (WT), dissolved oxygen (DO), chlorophyll-a (Chl-a), pH, and turbidity in hypereutrophic Lake Qilu from January 2017 to December 2021 were analyzed. The results sh
APA, Harvard, Vancouver, ISO, and other styles
32

Ran, Jiao, Rong Xiang, Jie Li, Keyan Xiao, and Binghui Zheng. "Spatiotemporal Variations in the Water Quality of Qionghai Lake, Yunnan–Guizhou Plateau, China." Water 14, no. 15 (2022): 2451. http://dx.doi.org/10.3390/w14152451.

Full text
Abstract:
Although Qionghai Lake is one of the 11 large and medium-sized lakes (lake area > 25 km2) in the Yunnan–Guizhou Plateau (YGP), there has been little research on its water quality, especially over the long term. Herein, meteorological, hydrologic, trophic, and biochemical indices were investigated over the 2011–2020 period to explore the spatiotemporal variations in water quality in Qionghai Lake. The results showed that the CCME-WQI value for Qionghai Lake ranked between marginal and fair during 2011–2020, that the water quality of Qionghai Lake before 2017 was worse than after 2017, and th
APA, Harvard, Vancouver, ISO, and other styles
33

Leng, Mingkai, Xiaodong Wu, Xuguang Ge, et al. "Evaluation of Water Quality and Eutrophication of Typical Lakes in Southeast Hubei, China." Sustainability 16, no. 20 (2024): 8964. http://dx.doi.org/10.3390/su16208964.

Full text
Abstract:
Field surveys and sample analyses were conducted from January 2018 to December 2019 on Daye Lake, Cihu Lake, Baoan Lake, and Xiandao Lake to understand the water quality characteristics of typical lakes in southeast Hubei. A fuzzy comprehensive evaluation was conducted and the comprehensive trophic level index was applied to evaluate the lakes’ water quality. The results showed differences in the regional, spatial, and temporal distributions of physical and chemical indicators in typical lakes in southeast Hubei. The fuzzy comprehensive evaluation showed that the water quality levels in Daye,
APA, Harvard, Vancouver, ISO, and other styles
34

Qi, Lingyan, Jiacong Huang, Junfeng Gao, and Zhen Cui. "Modelling the Impacts of Bathymetric Changes on Water Level in China’s Largest Freshwater Lake." Water 11, no. 7 (2019): 1469. http://dx.doi.org/10.3390/w11071469.

Full text
Abstract:
A recent dramatic decline in water level during the dry season in China’s largest freshwater lake (Lake Poyang) significantly influenced water availability and biogeochemical processes. To learn the potential causes of water level decline, this study investigated the hydrodynamic response to bathymetric changes during three typical hydrological years by scenario simulation using Environmental Fluid Dynamics Code (EFDC). The simulation results indicated that bathymetric changes resulted in a water level decrease during a low water level period. Inter-annual variation in the decrease rate implie
APA, Harvard, Vancouver, ISO, and other styles
35

Lu, Jinqiang, Lingqi Li, Enhui Jiang, Rong Gan, Chang Liu, and Ya Deng. "Ecological Water Demand Estimations for Desert Terminal Lake Survival under Inland River Water Diversion Regulation." Water 15, no. 1 (2022): 66. http://dx.doi.org/10.3390/w15010066.

Full text
Abstract:
Desert terminal lakes are important signals to discern ecological degradation crises, particularly in arid areas where an artificial project of ecological water diversion has designated a quota of river water to prevent lake body shrinkage and protect the ecosystem. Knowledge of the minimum ecological water demand (EWD) is thus necessary to ensure the basic health of lake ecosystems. This study analyzed the spatiotemporal evolution of water boundaries using Landsat satellites data via remote sensing technology from 2002 to 2017 in East Juyan Lake, an inland desert terminal lake of the Heihe Ri
APA, Harvard, Vancouver, ISO, and other styles
36

Huang, Zhengkai, Xin Wu, Haihong Wang, et al. "Characterizing the Water Storage Variation of Kusai Lake by Constructing Time Series from Multisource Remote Sensing Data." Remote Sensing 16, no. 1 (2023): 128. http://dx.doi.org/10.3390/rs16010128.

Full text
Abstract:
In September 2011, Zhuonai Lake (ZL) in the northeast of Hoh Xil (HX) on the Qinghai–Tibet Plateau (QTP) broke out. The outburst event seriously changed the environmental hydraulics in this region. Due to the insufficient temporal resolution of observations, it is challenging to assess the impact of this event on short-period variations of water volumes in three lakes downstream of ZL. Combining multisource remote sensing data, we constructed long and high-temporal-resolution time series for the lake level, area, and lake water storage (LWS) of Kusai Lake (KL) to characterize the variabilities
APA, Harvard, Vancouver, ISO, and other styles
37

Mohammadi, Ali, Razyeh Lak, Georg Schwamborn, Amaneh Kaveh Firouz, Attila Çiner, and Javad Darvishi Khatouni. "Depositional environments and salt-thickness variations in Urmia Lake (NW Iran): Insight from sediment-core studies." Journal of Sedimentary Research 91, no. 3 (2021): 296–316. http://dx.doi.org/10.2110/jsr.2020.078.

Full text
Abstract:
ABSTRACT Urmia Lake is a large-scale hypersaline lake that experienced a drastic water-level fall due to natural and anthropogenic forces during the last two decades. Construction of a causeway in the central part of the lake after 1989 has divided the lake into northern and southern parts and caused an extreme change of the lake hydrochemical system. Precipitation of evaporite minerals as crust on the lake floor was caused by the combination of lake level fall and increasing water salinity. However, some parameters controlling rates of salt deposition and dissolution and temporal and spatial
APA, Harvard, Vancouver, ISO, and other styles
38

Cengiz, Taner. "Periodic structures of Great Lakes levels using wavelet analysis." Journal of Hydrology and Hydromechanics 59, no. 1 (2011): 24–35. http://dx.doi.org/10.2478/v10098-011-0002-z.

Full text
Abstract:
Periodic structures of Great Lakes levels using wavelet analysisThe recently advanced approach of wavelet transforms is applied to the analysis of lake levels. The aim of this study is to investigate the variability of lake levels in four lakes in the Great Lakes region where the method of continuous wavelet transform and global spectra are used. The analysis of lake-level variations in the time-scale domain incorporates the method of continuous wavelet transform and the global spectrum. Four lake levels, Lake Erie, Lake Michigan, Lake Ontario, and Lake Superior in the Great Lakes region were
APA, Harvard, Vancouver, ISO, and other styles
39

Wirrmann, Denis, and Philippe Mourguiart. "Late Quaternary Spatio-temporal Limnological Variations in the Altiplano of Bolivia and Peru." Quaternary Research 43, no. 3 (1995): 344–54. http://dx.doi.org/10.1006/qres.1995.1040.

Full text
Abstract:
AbstractBetween the western and eastern Andean cordilleras in Peru and Bolivia, there are three main lacustrine basins: Lake Titicaca, Lake Poopó, and the group of Coipasa-Uyuni. For the past few millennia, highly variable environmental conditions have been recorded in their sediments. Today a latitudinal meteorological gradient influences the lakes' status, leading to specific deposits and ostracod communities. Lake Titicaca in the north is oligohaline, whereas Lake Poopó further south is polyhaline. In the south, the Coipasa-Uyuni depression is characterized by a 12,000-km2 surficial salt cr
APA, Harvard, Vancouver, ISO, and other styles
40

Zhang, Xin, Abilgazi Kurbaniyazov, and Georgiy Kirillin. "Changing Pattern of Water Level Trends in Eurasian Endorheic Lakes as a Response to the Recent Climate Variability." Remote Sensing 13, no. 18 (2021): 3705. http://dx.doi.org/10.3390/rs13183705.

Full text
Abstract:
Lake level is a sensitive integral indicator of climate change on regional scales, especially in enclosed endorheic basins. Eurasia contains the largest endorheic zone with several large terminal lakes, whose water levels recently underwent remarkable variations. To address the patterns of these variations and their links to the climate change, we investigated the variability of levels in 15 lakes of three neighboring endorheic regions—Central Asia, Tibetan Plateau, and Mongolian Plateau. Satellite altimetry revealed a heterogeneous pattern among the regions during 1992–2018: lake levels incre
APA, Harvard, Vancouver, ISO, and other styles
41

Du, Yan, Zhide Huang, Mowen Xie, Asim Farooq, and Chen Chen. "Temporal Variations in the Quantity of Groundwater Flow in Nam Co Lake." Water 10, no. 7 (2018): 941. http://dx.doi.org/10.3390/w10070941.

Full text
Abstract:
This paper aims to calculate and analyze the spatial and temporal variations in the groundwater flow quantity in Nam Co Lake based on the water balance principle. The results show that a large amount of groundwater was gradually lost and that, groundwater loss decreased from 1.9 billion m3 to 1.5 billion m3 from the period of 1980–1984 to 1995–2009. The comparative analysis in the current study indicates that the decrease in the groundwater index has a strong linear relationship with the temperature of the ground surface on the Tibetan Plateau, with a correlation coefficient as high as 0.92. M
APA, Harvard, Vancouver, ISO, and other styles
42

Guinaldo, Thibault, Simon Munier, Patrick Le Moigne, et al. "Parametrization of a lake water dynamics model MLake in the ISBA-CTRIP land surface system (SURFEX v8.1)." Geoscientific Model Development 14, no. 3 (2021): 1309–44. http://dx.doi.org/10.5194/gmd-14-1309-2021.

Full text
Abstract:
Abstract. Lakes are of fundamental importance in the Earth system as they support essential environmental and economic services, such as freshwater supply. Streamflow variability and temporal evolution are impacted by the presence of lakes in the river network; therefore, any change in the lake state can induce a modification of the regional hydrological regime. Despite the importance of the impact of lakes on hydrological fluxes and the water balance, a representation of the mass budget is generally not included in climate models and global-scale hydrological modeling platforms. The goal of t
APA, Harvard, Vancouver, ISO, and other styles
43

WICKRAMARACHCHI, Charuni, Ioana POPESCU, Andreja JONOSKI, and Jochen WENNINGER. "Use of globally available data for determining water level variation in lakes: the case study of Lake Turkana, Kenya." Geo-Eco-Marina 29 (2023) (December 31, 2023): 169–85. https://doi.org/10.5281/zenodo.10376148.

Full text
Abstract:
This study identifies relevant globally available data to develop basin and water level variation models which can be used for scenario modelling. The case study for the current research is Lake Turkana in Kenya, which is the outlet of 3 main river basins: Omo, Turkwel and Keiro. Due to the lack of data, the present paper only considers the Omo River Basin, which contributes around 90% of the inflow into the lake. Lumped and semi-lumped hydrological models were developed using the USACE’s HEC-HMS tool. The calibration and validation were carried out using the EU computed discharges of th
APA, Harvard, Vancouver, ISO, and other styles
44

Wu, Hongbo, Ninglian Wang, Xi Jiang, and Zhongming Guo. "Variations in water level and glacier mass balance in Nam Co lake, Nyainqentanglha range, Tibetan Plateau, based on ICESat data for 2003-09." Annals of Glaciology 55, no. 66 (2014): 239–47. http://dx.doi.org/10.3189/2014aog66a100.

Full text
Abstract:
AbstractWater level fluctuations of inland lakes are related to regional-scale climate changes, and reflect variations in evaporation, precipitation and glacier meltwater flowing into the lake area in its catchment. In this paper, Ice, Cloud and land Elevation Satellite (ICESat) altimeter data and Landsat imagery (2002-09) are used to estimate Nam Co lake (Nyainqentanglha range, Tibetan Plateau) water elevation changes during 2002-09. In 2003 Nam Co lake covered an area of ~1998.8 ± 4.2 km2 and was situated at 4723 m a.s.l. Over such inland water bodies, ICESat altimeter data offer both wide c
APA, Harvard, Vancouver, ISO, and other styles
45

Xu, Shan, Liang Zhai, Bin Zou, and Huiyong Sang. "Multiscale Analysis of Water Area, Level and Flow and Their Relationships for a Large Lake Connected to Rivers: A Case Study of Dongting Lake, China." Water 16, no. 9 (2024): 1198. http://dx.doi.org/10.3390/w16091198.

Full text
Abstract:
Exploring the different characteristics of water status at different time scales is essential for the understanding of the complex hydrological processes in lakes connected to rivers. Taking Dongting Lake, a large-scale lake connected to the Yangtze River, as an example, this study employed wavelet analysis and multiple models to explore the temporal characteristics of water area, level, and flow and the water level–area and flow–area correlations from 2000 to 2021 on annual, seasonal, and monthly scales. The results show that the interannual variations in annual, seasonal, and monthly water a
APA, Harvard, Vancouver, ISO, and other styles
46

Liu, Y., Y. Li, Y. Lu, and H. Yue. "REMOTE SENSING ANALYSIS OF VOLUME IN TAIHU LAKE: APPLICATION FOR ICESAT/HYDROWEB AND LANDSAT DATA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3 (April 30, 2018): 1161–63. http://dx.doi.org/10.5194/isprs-archives-xlii-3-1161-2018.

Full text
Abstract:
In order to evaluate the fluctuation of Taihui Lake, ICESat/Hydroweb and Landsat data recorded from 1975 to 2015 were used to examine changes in lake level and area, derived from Normalized Difference Water Index (NDWI) and Modified Normalized Difference Water Index (MNDWI), which are combined to indirectly evaluate water volume variations and water balance of Taihu Lake. The results show that the time series of lake area and volume variations of Taihu Lake exhibit a gradually increasing trend from 1975 to 2015 and the value rose from 2320.07 km<sup>2</sup> and &
APA, Harvard, Vancouver, ISO, and other styles
47

Liu, Yang, Ze Ren, Xiaodong Qu, Min Zhang, Yang Yu, and Wenqi Peng. "Seasonal Water Level Fluctuation and Concomitant Change of Nutrients Shift Microeukaryotic Communities in a Shallow Lake." Water 12, no. 9 (2020): 2317. http://dx.doi.org/10.3390/w12092317.

Full text
Abstract:
Seasonal water level fluctuations (WLFs) impose dramatic influences on lake ecosystems. The influences of WLFs have been well studied for many lake biotas but the microeukaryotic community remains one of the least-explored features. This study employed high-throughput 18S rRNA gene sequencing to investigate the spatiotemporal patterns of microeukaryotic communities in the dry and wet seasons with concomitant change of nutrients in Poyang Lake, which experiences huge seasonal WLFs. The results showed that the dry season and wet season had distinct microeukaryotic community compositions and stru
APA, Harvard, Vancouver, ISO, and other styles
48

Privalsky, Victor. "Statistical Analysis and Predictability of Lake Erie Water Level Variations." Journal of Great Lakes Research 18, no. 1 (1992): 236–43. http://dx.doi.org/10.1016/s0380-1330(92)71291-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Zhan, Pengfei, Chunqiao Song, Jida Wang, et al. "Recent Abnormal Hydrologic Behavior of Tibetan Lakes Observed by Multi-Mission Altimeters." Remote Sensing 12, no. 18 (2020): 2986. http://dx.doi.org/10.3390/rs12182986.

Full text
Abstract:
Inland lakes in the Tibetan Plateau (TP) with closed catchments and minimal human disturbance are an important indicator of climate change. However, the examination of changes in the spatiotemporal patterns of Tibetan lakes, especially water level variations, is limited due to inadequate access to measurements. This obstacle has been improved by the development of satellite altimetry observations. The more recent studies revealed that the trend of central TP to grow decreased or reversed between 2010 and 2016. However, thus far, this trend has not been investigated to determine whether this pa
APA, Harvard, Vancouver, ISO, and other styles
50

Hamoudzadeh, Alireza, Roberta Ravanelli, and Mattia Crespi. "SWOT Level 2 Lake Single-Pass Product: The L2_HR_LakeSP Data Preliminary Analysis for Water Level Monitoring." Remote Sensing 16, no. 7 (2024): 1244. http://dx.doi.org/10.3390/rs16071244.

Full text
Abstract:
The Surface Water and Ocean Topography (SWOT) mission, launched in December 2022, aims to address the crucial environmental goal of water monitoring to support preparedness for extreme events and facilitate adaptation to climate change on global and local scales. This mission will provide a comprehensive inventory of worldwide water resources, lakes, reservoir storage, and river dynamics. In this work, we carried out a preliminary assessment of SWOT’s Lake product Level 2 version 1.1, also known as “L2_HR_LakeSP”. The analysis was performed across six diverse lakes on three continents, reveali
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!