Evaluation Des Performances Du Modele Agro-Hydrologique SWAT à Reproduire Le Fonctionnement Hydrologique Du Bassin Versant Nakhla (Rif occidental, Maroc)

Taleb, Roukia Boukhari; Naïmi, Mustapha; Chikhaoui, Mohamed; Raclot, Damien; Sabir, Mohamed

doi:10.19044/esj.2019.v15n5p311

Cited by 9 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, in the distributed/semi-distributed approach, the watershed is considered as a more complex entity. Flow modelling here requires a subdivision into homogeneous elementary surfaces (Taleb et al, 2019). A wide range of input data (meteorological and spatial) is required.…”

Section: Introductionmentioning

confidence: 99%

Availability of the current and future water resources in Equatorial Central Africa: case of the Nyong forest catchment in Cameroon

Ebodé,

Onana,

Dzana

et al. 2024

Environ Monit Assess

View full text Add to dashboard Cite

To anticipate disasters (drought, floods, etc.) caused by environmental forcing and reduce their impacts on its fragile economy, sub-Saharan Africa needs a good knowledge of the availability of current water resources and reliable hydroclimatic forecasts. This study has as objective to quantify the availability of water resources in the Nyong basin and predict its future evolution . For this, the SWAT (Soil and Water Assessment Tool) model was used. The performance of this model is satisfactory in calibration and validation, with R 2 , NSE and KGE greater than 0.64. Biases lower than -14% also attest to this good performance. In the investigated basin, infiltration (GW_RCH), evapotranspiration (ETP), runoff (SURQ) and water yield (WYLD) are greater in the East, probably due to more abundant rainfall in this part. The flows and sediment load (SED) are greater in the middle zone and in the Southwest of the basin, certainly because of the relief of this part, which corresponds to the valley floor. Two models (CCCma and REMO) predict a decline in water resources in this basin, and two others (HIRHAM5 and RCA4) the opposite. However, based on a statistical study carried out over the historical period (2001)(2002)(2003)(2004)(2005), the CCCma model seems the most reliable. It forecasts a drop in precipitation and runoff, which do not exceed -19% and -18%, respectively, whatever the emission scenario (RCP4.5 or RCP8.5). Climate variability (CV) is the only forcing whose impact is visible in the dynamics of current and future flows, due to the modest current and future changes observed in the evolution of land use and land cover (LULC). The results of this study could contribute to improving water resource management in the basin studied and the region.

show abstract

Section: Introductionmentioning

confidence: 99%

Availability of the current and future water resources in Equatorial Central Africa: case of the Nyong forest catchment in Cameroon

Ebodé,

Onana,

Dzana

et al. 2024

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

“…Chaponnière, in 2005 carried out the first SWAT modelling on the semi-arid watershed Ourika. Numerous studies have been carried out in the Moroccan context at various sites using the SWAT model to perform hydrological prediction (Chadli K., 2017; Mimich et al, 2018;Boufala et al, 2019;Taleb et al, 2019). Also, some researchers treated the impact of siltation and prolonging dam lifespan besides assessing sediment yield (Markhi et al, 2019;Ouatiki et al, 2016;Ait M'Barek et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Hydrological Modelling in the Ouergha Watershed by Soil and Water Analysis Tool

Erraioui¹,

Taia²,

Taj-Eddine³

et al. 2023

J. Ecol. Eng.

View full text Add to dashboard Cite

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 (R 2 ), Nash-Sutcliffe efficiency (NSE), and percent of bias (PBIAS) were utilized. The value of R 2 , 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.

show abstract

“…These models take into account parameters such as precipitation, evapotranspiration and soil water capacity. In the distributed/semidistributed approach, on the other hand, the watershed is considered as a complex entity and flow modeling requires a subdivision into homogeneous elementary surfaces (Legesse et al 2003;Githui et al 2009;Taleb et al 2019). Distributed/ semi-distributed models require a wide range of input data, ranging from physical characteristics of the basin (slopes, land cover, soils, etc.)…”

Section: Introductionmentioning

confidence: 99%

Effects of climate and anthropogenic changes on current and future variability in flows in the So'o River Basin (south of Cameroon)

et al. 2022

View full text Add to dashboard Cite

Due to climate and environmental changes, sub-Saharan Africa (SSA) has experienced several drought and flood events in recent decades with serious consequences on the economy of the sub-region. In this context, the region needs to enhance its capacity in water resources management, based on both good knowledge of contemporary variations in river flows and reliable forecasts. The objective of this article was to study the evolution of current and future (near (2022–2060) and distant (2061–2100)) flows in the So'o River Basin (SRB) in Cameroon. To achieve this, the Pettitt and modified Mann–Kendall tests were used to analyze hydrometeorological time series in the basin. The Soil and Water Assessment Tool (SWAT) model was used to simulate the future flows in the SRB. The results obtained show that for the current period, the flows of the So'o decrease due to the decrease in precipitation. For future periods, a change in precipitation in line with the predictions of the CCCma model will lead to a decrease in river discharge in the basin, except under the RCP8.5 scenario during the second period (2061–2100), where will note an increase compared to the historical period of approximately +4%. Results from the RCA4 model project an increase in precipitation which will lead to an increase in river discharge by more than +50%, regardless of the period and the scenario considered. An increase in discharges was noted in some cases despite a drop in rainfall, particularly in the case of discharges simulated for the second period (2061–2100) from the outputs of the CCCma model. This seems to be a consequence of the increase in impervious spaces, all the more the runoff increases during this period according to the model. Results from this study could be used to enhance water resources management in the basin investigated and the region.

show abstract

Evaluation Des Performances Du Modele Agro-Hydrologique SWAT à Reproduire Le Fonctionnement Hydrologique Du Bassin Versant Nakhla (Rif occidental, Maroc)

Cited by 9 publications

References 33 publications

Availability of the current and future water resources in Equatorial Central Africa: case of the Nyong forest catchment in Cameroon

Availability of the current and future water resources in Equatorial Central Africa: case of the Nyong forest catchment in Cameroon

Hydrological Modelling in the Ouergha Watershed by Soil and Water Analysis Tool

Effects of climate and anthropogenic changes on current and future variability in flows in the So'o River Basin (south of Cameroon)

Contact Info

Product

Resources

About