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Tytuł:
Hydrological modeling using the SWAT model based on two types of data from the watershed of Beni Haroun dam, Algeria
Modelowanie hydrologiczne za pomocą modelu SWAT na podstawie dwóch typów danych dotyczących zlewni zbiornika zaporowego Beni Haroun w Algierii
Autorzy:
Kateb, Zakaria
Bouchelkia, Hamid
Benmansour, Abdelhalim
Belarbi, Fadila
Powiązania:
https://bibliotekanauki.pl/articles/293367.pdf
Data publikacji:
2019
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Beni Haroun
calibration
SWAT model
water yields
watershed
kalibracja
model SWAT
natężenie przepływu wody
zlewnia
Opis:
The dam of Beni Haroun is the largest in Algeria, and its transfer structures feed seven provinces (wilayas) in the eastern part of Algeria. Due to its importance in the region, it has now become urgent to study its watershed as well as all the parameters that can influence the water and solid intakes that come into the dam. The Soil and Water Assessment Tool (SWAT) model is used to quantify the water yields and identify the vulnerable spots using two scenarios. The first one uses worldwide data (GlobCover and HWSD), and the second one employs remote sensing and digital soil mapping in order to determine the most suitable data to obtain the best results. The SWAT model can be used to reproduce the hydrological cycle within the watershed. Concerning the first scenario, during the calibration period, R2 was found between 0.45 and 0.69, and the Nash–Sutcliffe efficiency (NSE) coefficient was within the interval from 0.63 to 0.80; in the validation period, R2 lied between 0.47 and 0.59, and the NSE coefficient ranged from 0.58 to 0.64. As for the second scenario, during the calibration period, R2 was between 0.60 and 0.66, and the NSE coefficient was between 0.55 and 0.75; however, during the validation period, R2 was in the interval from 0.56 to 0.70, and the NSE coefficient within the range 0.64–0.70. These findings indicate that the data obtained using remote sensing and digital soil mapping provide a better representation of the watershed and give a better hydrological modelling.
Beni Haroun jest największym zbiornikiem zaporowym Algierii zasilającym w wodę siedem prowincji we wschodniej części kraju. Podjęcie badań jego zlewni oraz wszystkich czynników, które wpływają na dostawę wody i zawiesiny do zbiornika, okazało się pilne ze względu na regionalne znaczenie zbiornika. Model SWAT (Soil and Water Assessment Tool) wykorzystano do ilościowego ujęcia natężenia przepływu wody i identyfikacji wrażliwych elementów systemu z użyciem dwóch scenariuszy. W pierwszym wykorzystano dane światowe, w drugim dane z teledetekcji i cyfrowych map glebowych celem ustalenia najbardziej odpowiednich danych do osiągnięcia najlepszych rezultatów. Model SWAT można użyć do odtworzenia cyklu hydrologicznego na obszarze zlewni. Według pierwszego scenariusza podczas kalibracji R2 wynosił od 0,45 do 0,69, a współczynnik efektywności Nasha–Sutcliffa (NSE) mieścił się w przedziale od 0,63 do 0,80. Podczas walidacji R2 zmieniał się od 0,47 do 0,59, a współczynnik NSE od 0,58 do 0,64. Według drugiego scenariusza podczas kalibracji R2 wynosił od 0,60 do 0,66, a współczynnik NSE od 0,55 do 0,75. Podczas walidacji współczynniki mieściły się odpowiednio w granicach od 0,56 do 0,70 i od 0,64 do 0,70. Wyniki wskazują, że dane pozyskane z teledetekcji i cyfrowych map glebowych stanowią lepszą reprezentację zlewni i umożliwiają usprawnienie modelowania hydrologicznego.
Źródło:
Journal of Water and Land Development; 2019, 43; 76-89
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of Rainfall-Runoff Relationship in Big-Akaki Watershed, Upper Awash Basin, Ethiopia
Autorzy:
Zeberie, Wondimu
Powiązania:
https://bibliotekanauki.pl/articles/1076627.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Big-Akaki watershed
LULC
SWAT
Stream flow
Opis:
Accurate estimation of surface runoff is a challenging task, but it is an important research topic because surface runoff plays a vital role in the study of the hydrological cycle, climate change, water resources, flood management, etc. Surface runoff reflects the amount of water that moves from the watershed into the river system and the amount that is drawn from it. The Big-Akaki watershed has suffered severe flooding due to increasing urbanization, deforestation, as well as reckless use of land and water resources that has led to the appearance of soil erosion. In our work, the SCS curve number was used to estimate runoff from the basin surface, and SWAT was used to delineate the basin and analyze the slope of the watershed, the soil and land uses. In addition, ground control points, interviews and field observation were carried out to collect data on the LULC classification. Moreover, model calibration (1991-1998) and validation (1999-2004) were performed for the monthly flow at the Akaki measuring station. The Big-Akaki watershed has a drainage area of 971,849 km2. The simulation was carried out by dividing the watershed into 33 sub-basins and assigning a hydrological response unit based on the definition of multiple HRU. The results indicate that SWAT generally works well by simulating runoff according to the result of three objectives (NSE, R2 and RSR). For surface runoff, the NSE, R2 and RSR values were 0.81, 0.82 and 0.44 during the calibration and 0.77, 0.77 and 0.48 during the validation period, respectively. Finally, the annual average precipitation and surface runoff of the Big-Akaki basin is 1183.56 mm and 227.634 mm, respectively. In addition, the results showed a direct relationship between rainfall and surface runoff.
Źródło:
World News of Natural Sciences; 2019, 27; 108-120
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling erosion and sedimentation in a small watershed, East Java, Indonesia
Autorzy:
Sujarwo, Mohamad Wawan
Indarto, Indarto
Mandala, Marga
Powiązania:
https://bibliotekanauki.pl/articles/1841937.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
discharge
erosion
modelling
Sanenrejo watershed
sedimentation
SWAT
Opis:
Changes in land use as a result of human activities may generate the alteration of hydrometeorological disasters. Erosion, sedimentation, floods and landslides frequently occur in the Sanenrejo watershed (±292 km2), located in East Java, Indonesia. In this paper, the soil and water assessment tool (SWAT) model is used to evaluate the hydrological processes in this small watershed. The digital elevation model (DEM) is used as the primary input for deriving the topographic and physical properties of the watershed. Other input data used for the modelling processes include soil type, land use, observed discharge data and climate variables. These data are integrated into the SWAT to calculate discharge, erosion and sedimentation processes. The existing observed discharge data used to calibrate the SWAT output at the watershed outlet. The calibration results produce Nash–Sutcliffe efficiency (NSE) of 0.62 and determination coefficient (R2) of 0.75, then the validation result of 0.5 (NSE) and 0.63 (R2). The middle area faced the highest erosion and sedimentation that potentially contribute to hydrometeorological disasters.
Źródło:
Journal of Water and Land Development; 2021, 50; 265-273
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrological Modelling in the Ouergha Watershed by Soil and Water Analysis Tool
Autorzy:
Erraioui, Lamia
Taia, Soufiane
Taj-Eddine, Kamal
Chao, Jamal
El Mansouri, Bouabid
Powiązania:
https://bibliotekanauki.pl/articles/24201734.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
SWAT
Ouergha watershed
hydrological modeling
water balance
Opis:
Streamflow modelling is crucial for developing successful long-term management, soil conservation planning, and water resource management strategies. The current work attempts to develop a robust hydrological model that simulates streamflow with the slightest uncertainty in the calibration parameters. A physical-based and semidistributed hydrological SWAT model was employed to assess the hydrological simulation of the Ouergha watershed. The monthly simulation of the SWAT model achieved in the time frame from 1990 to 2013 has been split into warm-up (1990–1996), calibration (1997–2005), and validation (2006-2013). The SUFI-2 algorithm’s preliminary sensitivity and uncertainty analysis was done to calibrate the model using 11 hydrologic parameters. The model’s performance and robustness findings are promising. To evaluate the model, the coefficient of determination (R2), Nash-Sutcliffe efficiency (NSE), and percent of bias (PBIAS) were utilized. The value of R2, NSE, and PBIAS ranged from 0.45–0.77, 0.6–0.89, and +12.72 to +21.89% during calibration and 0.51–0.85, 0.64–0.88, and +8.82 to +22.19% during validation period, respectively. A high correlation between the observed and simulated streamflow was recorded during the calibration and validation periods. More than 68% of the observation data are encompassed by the 95PPU across both the calibration and validation intervals, which is excellent in terms of the P-factor and R-factor uncertainty criterion. The projected streamflow matches the observed data well graphically. According to the total hydrological water balance study, 29% of precipitation is delivered to streamflow as runoff, whereas 54% of precipitation is lost through evapotranspiration. The recharge to the deep aquifers is 8%, whereas the lateral flow is 10%. The findings of this study will help as a roadmap for the anticipated water management activities for the basin since the management and planning of water resources require temporal and spatial information.
Źródło:
Journal of Ecological Engineering; 2023, 24, 4; 343--356
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utility of GSMap Precipitation and Point Scale in Gauge Measurements for Stream Flow Modelling – A Case Study in Lam River Basin, Vietnam
Autorzy:
Kha, Dang Dinh
Nhu, Nguyen Y.
Long, Vu Viet
Van, Dao Thi Hong
Powiązania:
https://bibliotekanauki.pl/articles/123552.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
GSMaP
SWAT model
merging
Lam river basin
flow modelling
Opis:
The benefit from integrating the information from multi-source was confirmed in the research of hydrologic processes in river basins. However, the use of satellite-based rainfall products in hydrologic stream flow modeling has been limited because of the perceived uncertainty associated with such data. In this study the authors presented the simulated streamflow from a SWAT model driven by merging rainfall between satellite and gauge-observed rainfall for the Lam River Basin. The results demonstrate the usefulness of merging rainfall data for stream flow modelling at a monthly time step.
Źródło:
Journal of Ecological Engineering; 2020, 21, 2; 39-45
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A multicriteria approach to different land use scenarios in the Western Carpathians with the SWAT model
Autorzy:
Kowalczyk, Agnieszka W.
Grabowska-Polanowska, Beata
Garbowski, Tomasz
Kopacz, Marek
Lach, Stanisław
Mazur, Robert
Powiązania:
https://bibliotekanauki.pl/articles/27312653.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
catchment area
land use
soil erosion
SWAT model
Western Carpathians
Opis:
Water erosion in mountainous areas is a major problem, especially on steep slopes exposed to intense precipitation. This paper presents the analysis of the topsoil loss using the SWAT (Soil and Water Assessment Tool) model. The SWAT model is a deterministic catchment model with a daily time step. It was designed to anticipate changes taking place in the catchment area, such as climate change and changes in land use and development, including the quantity and quality of water resources, soil erosion and agricultural production. In addition to hydrological and environmental aspects, the SWAT model is used to address socio-economic and demographic issues, such as water supply and food production. This program is integrated with QGIS software. The results were evaluated using the following statistical coefficients: determination (R2), Nash-Sutcliff model efficiency (NS), and percentage deviation index (PBIAS). An assessment of modelling results was made in terms of their variation according to different land cover scenarios. In the case of the scenario with no change in use, the average annual loss of topsoil (average upland sediment yield) was found to be 14.3 Mg∙ha-1. The maximum upland sediment yield was 94.6 Mg∙ha-1. On the other hand, there is an accumulation of soil material in the lower part of the catchment (in-stream sediment change), on average 13.27 Mg∙ha-1 per year.
Źródło:
Journal of Water and Land Development; 2023, 57; 130--139
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the SWAT Model and the Parameters Affecting the Flow Simulation in the Watershed of Oued Laou (Northern Morocco)
Autorzy:
Aqnouy, Mourad
El Messari, Jamal Eddine Stitou
Ismail, Hilal
Bouadila, Abdelmounim
Moreno Navarro, Jesús Gabriel
Loubna, Bounab
Mansour, Mohammed Reda Aoulad
Powiązania:
https://bibliotekanauki.pl/articles/125375.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
SWAT
flow
Laou watershed
sub-humid
semi-arid
base flow
Opis:
This study evaluated the Soil and Water Assessment Tool (SWAT) model performance for modeling the portioning of rainfall in the Laou watershed (area: 940 km2) that extended over two different climatic settings in Morocco, (the Mediterranean sub-humid and the semi-arid). This research also investigated the significant parameters that affect the stream flow simulation. SWAT model was constructed during the period from 2004 to 2011. The modeled stream flow data was manually calibrated using flow gauges daily from 2004 to 2008 and validated for the volumetric flows from 2009 to 2011. SWAT model results indicate that 60% of the stream is provided by the base flow. The sensitivity analysis showed that out of 28 parameters, only 6 revealed meaningful effects on the flow simulation (CN2, ESCO, SOL_AWC, ALPHA_BF, CH_N2, CH_k2) and have the most significant influence. The model proved to be very sensitive to the base flow. Furthermore our outcome indicates that SWAT can successfully replicate the daily stream flows in Laou watershed with Nash-Sutcliffe (NSE) coefficients in the range of 0.76–0.84, R2 of 0.74–0.82, RSR of 0.52–0.41 and PBIS of 12.24–8.93 respectively. In addition SWAT was found to be suitable for both climatic regions in Laou watershed. These results reinforced the multi-functionality and reliability of SWAT as a hydrological model and a relevant tool for water resources management and controls.
Źródło:
Journal of Ecological Engineering; 2019, 20, 4; 104-113
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Challenges in modelling of water quantity and quality in two contrasting meso-scale catchments in Poland
Wyzwania w modelowaniu ilości i jakości wód w dwóch kontrastowych zlewniach w Polsce
Autorzy:
Marcinkowski, P.
Piniewski, M.
Kardel, I.
Srinivasan, R.
Okruszko, T.
Powiązania:
https://bibliotekanauki.pl/articles/292859.pdf
Data publikacji:
2016
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
model calibration
model validation
nutrients
sediment
SWAT model
water quality modelling
water quantity modelling
biogeny
kalibracja modelu
model SWAT
modelowanie ilości wód
modelowanie jakości wód
weryfikacja modelu
Opis:
This study presents an application of the SWAT model (Soil and Water Assessment Tool) in two meso- -scale catchments in Poland (Upper Narew and Barycz), contrasting in terms of human pressures on water quantity and quality. The main objective was multi-variable and multi-site calibration and validation of the model against daily discharge, sediment and nutrient loads as well as discussion of challenges encountered in calibration phase. Multi-site calibration and validation gave varied results ranging from very good (daily discharge) to acceptable (sediment, nitrogen and phosphorus loads in most of gauges) and rather poor (individual gauges for all variables) in both catchments. The calibrated models enabled spatial quantification of water yield, sediment and nutrient loads, indicating areas of special concern in terms of pollution, as well as estimation of contribution of pollution from different sources, indicating agriculture as the most important source in both catchments. During the calibration process a number of significant issues were encountered: (i) global vs. local parametrization, (ii) simulation of different pools of water quality parameters in reservoirs and streams and (iii) underestimation of NO3-N loads in winter due to farmers practices. Discussion of these issues is hoped to aid SWAT model users in Poland in a deeper understanding of mechanisms of multi-variable and multi-site calibration.
W niniejszej pracy przedstawiono zastosowanie modelu SWAT (Soil and Water Assessment Tool) w dwóch zlewniach w Polsce (Górnej Narwi i Baryczy), kontrastowych pod względem antropopresji w odniesieniu do ilości i jakości wód. Głównym celem była przestrzenna kalibracja i weryfikacja modelu w zakresie przepływów dobowych, ładunków zawiesiny i biogenów oraz dyskusja nad wyzwaniami napotkanymi w trakcie procesu kalibracji. Wyniki przestrzennej (wielopunktowej) kalibracji i weryfikacji są zróżnicowane – od dobrych (przepływ dobowy), poprzez akceptowalne (zawiesina, azot i fosfor w większości punktów monitoringu), do złych (pojedyncze punkty monitoringu dla każdej ze zmiennych). Skalibrowany model umożliwił przestrzenną kwantyfikację warstwy odpływu, ładunków zawiesiny i biogenów oraz wskazanie obszarów szczególnie narażonych na zanieczyszczenia z różnych źródeł, jednocześnie wskazując rolnictwo jako główne źródło. Podczas kalibracji modelu napotkano następujące problemy: (1) identyfikacja parametrów globalnych w odniesieniu do lokalnych, (2) symulacja różnych form parametrów jakościowych w zbiornikach wodnych i ciekach oraz (3) niedoszacowanie ładunków azotanów w okresie zimowym spowodowane praktykami rolniczymi. Dyskusja nad poruszonymi aspektami umożliwi innym użytkownikom modelu SWAT lepsze zrozumienie mechanizmu wielopunktowej i wieloparametrycznej kalibracji.
Źródło:
Journal of Water and Land Development; 2016, 31; 97-111
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of sediment yield and conservation practices in Akaki watershed, Upper Awash Basin, Ethiopia
Autorzy:
Zeberie, Wondimu
Powiązania:
https://bibliotekanauki.pl/articles/1031690.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Akaki watershed
ERDAS Imagine
LULC
MUSLE
SWAT
Upper Awash Basin
sediment yield
Opis:
Changes in land use / land cover, coupled with poor management systems, can result in a high rate of soil erosion and increased sediment transport by changing the extent and structure of runoff and sediment yield. The purpose of this study was to assess sediment yield and conservation practices in the Akaki watershed using the Soil and Water Assessment Tool (SWAT) model. The watershed has been severely degraded due to increasing urbanization, deforestation, careless use of land and water resources that have led to soil erosion. MUSLES were used to estimate sediment yield in watersheds. SWAT has been used to delineate the watershed and to analyze the slope of the watershed, soils and land uses. In addition, ground control points, interviews and field observations were conducted to collect data on the effects of soil erosion and the status of existing conservation measures. The average annual soil loss in the study area is estimated at 2.12 tonnes / ha / year due to the high erosivity of rainfall in the region. In addition, the results showed a direct relationship between precipitation and sediment yield. Spatial variability of sediment yield was performed using simulated sediment yield results for LULC generated. Also based on the spatial outcome for critical sub-watersheds, the design and development of best management practices were proposed under different scenarios. The scenarios showed that the average annual reduction in sediment yield at the sub-basins of hot spots after the application of filter belts, terraces and stone bunds was 75.6%, 68.8% and 69.6% respectively, 4% of sediment reduction. Therefore, the placement of filter strips for the Akaki catchment should be developed and encouraged for effective sediment reduction.
Źródło:
World News of Natural Sciences; 2020, 28; 103-120
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie transportu materiału zawieszonego w dorzeczu Parsęty z uwzględnieniem zróżnicowanych rozdzielczości danych przestrzennych
Modelling of suspended sediment transport in the Parsęta drainage basin using different spatial data resolutions
Autorzy:
Gudowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/1395729.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
modelowanie
transport osadów
SWAT
dane przestrzenne
Parsęta
modelling
sediment transport
spatial data
Opis:
Celem pracy jest przedstawienie modelu hydrologicznego dla dorzecza Parsęty opartego o system informacji geograficznej oraz prezentacja uzyskanych wyników modelowania w zakresie odpływu materiału zawieszonego. W badaniach wykorzystano model SWAT (Soil and Water Assessment Tool) zintegrowany za pomocą aplikacji ArcSWAT z oprogramowaniem ArcGIS. Wyniki poddane zostały ocenie przy zastosowaniu współczynników statystycznych: determinacji R2, efektywności modelu Nasha-Sutcliffa (NSE) oraz współczynnika odchylenia procentowego (PBIAS). Ocenę otrzymanych rezultatów modelowania wykonano pod kątem ich zróżnicowania w zależności od zastosowanych przestrzennych danych wejściowych. Stwierdzono, że najbardziej zgodne z danymi obserwowanymi były wyniki modelowania uzyskane z zastosowaniem danych przestrzennych o najwyższej rozdzielczości.
The aim of this study was to present a GIS-based hydrological model developed for the Parsęta drainage basin and presentation of the results in terms of the suspended sediment outflow. SWAT (Soil and Water Assessment Tool) model integrated by the ArcSWAT application with the ArcGIS software was used in the study. The results were subject to assessment by statistical methods: R2 determination coefficient, Nash-Sutcliffe efficiency coefficient (NSE), percent bias coefficient (PBIAS). The evaluation of the results was performed based on their differentiation depending upon the spatial input data. The most consistent with the observed data were modeling results obtained from the use of high resolution spatial data.
Źródło:
Landform Analysis; 2015, 30; 57-64
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł

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