Sensitivity analysis of a GIS-based model: A case study of a large semi-arid catchment

Mosbahi, Manel; Benabdallah, Sihem; Boussema, Mohamed Rached

doi:10.1007/s12145-014-0176-0

Cited by 18 publications

(8 citation statements)

References 37 publications

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“…Moriasi et al [28] suggest that NSE values greater than 0.75 are considered excellent, values greater than 0.65 are considered good, and values greater than 0.5 are considered satisfactory for hydrological model evaluation. They further conclude that R 2 values greater than 0.5 are regarded as Moriasi et al [28] suggest that NSE values greater than 0.75 are considered excellent, values greater than 0.65 are considered good, and values greater than 0.5 are considered satisfactory for hydrological model evaluation. They further conclude that R 2 values greater than 0.5 are regarded as acceptable for model simulation.…”

Section: Reservoir Inflow Simulationmentioning

confidence: 99%

Impacts of Climate Change and Human Activities on the Three Gorges Reservoir Inflow

Zhang

Zhong

Chen

et al. 2017

Water

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Identifying changes in runoff and quantifying the impacts of climate change and human activities are of great significance for water resources planning and management in a river basin. In this study, an inflow series of the Three Gorges Reservoir observed from 1951 to 2016 is used to identify the trend and abrupt change point by using statistical methods. Based on the meteorological data, soil type data, and land use data during the same period, the Soil and Water Assessment Tool (SWAT) model is established to quantitatively attribute changes in the Three Gorges Reservoir inflow to climate change and human activities separately and discuss the differences between the two-stage method, which divides the whole study period into two stages to analyze the reasons for runoff evolution, and multi-stage method, which divides the whole study period into more stages to consider the temporal and spatial variation of land use/cover (LULC). The results show: (1) During the study period, a significant decrease is detected in the Three Gorges Reservoir inflow and the decrease rate is 7.7 km 3 per ten years, annual total precipitation decreases by −13.5 mm per ten years, and annual average temperature increases by 0.1 • C per ten years. (2) Contribution of climate change and human activities is around 7:3. Climate change is the main reason for the decrease in the Three Gorges Reservoir inflow. (3) Results of stages in multi-stage method are different from the result of two-stage method. Accumulative results of multi-stage method and result of two-stage method are consistent. There are some changes in results of every stage, which are different from the accumulative results.

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Section: Reservoir Inflow Simulationmentioning

confidence: 99%

Impacts of Climate Change and Human Activities on the Three Gorges Reservoir Inflow

Zhang

Zhong

Chen

et al. 2017

Water

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“…Table 1 lists the eleven parameters used in the calibration process from the SWAT models. They were selected based on the list in SWAT calibration tool and extensive literature review (Zhang et al 2009;Mosbahi et al 2014). For this study, three SWAT models were built with three simulation periods; period 1 (LULC with weather data from 1970 -1989), period 2 (NLCD1992 with weather data from 1990 -1999), and period 3 (NLCD2001 with weather data from 2000 -2009).…”

Section: Swat Modelmentioning

confidence: 99%

Water Resources Response to Climate and Land-Cover Changes in a Semi-Arid Watershed, New Mexico, USA

Heo¹,

Yu²,

Giardino³

et al. 2015

Terr. Atmos. Ocean. Sci.

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This research evaluates a climate-land cover-water resources interconnected system in a semi-arid watershed with minimal human impact from 1970 -2009. We found 0.9°C increase in temperature and 10.9% decrease in precipitation. The temperature exhibited a lower increase trend and precipitation showed a similar decrease trend compared to previous studies. The dominant land-cover change trend was grass and forest conversion into bush/shrub and developed land and crop land into barren and grass land. These alterations indicate that changes in temperature and precipitation in the study area may be linked to changes in land cover, although human intervention is recognized as the major land-cover change contributor for the short term. These alterations also suggest that decreasing human activity in the study area leads to developed land and crop land conversion into barren and grass land. Hydrological responses to climate and land-cover changes for surface runoff, groundwater discharge, soil water content and evapotranspiration decreased by 10.2, 10.0, 4.1, and 10.5%, respectively. Hydrological parameters generally follow similar trends to that of precipitation in semi-arid watersheds with minimal human development. Soil water content is sensitive to land-cover change and offset relatively by the changes in precipitation.

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“…It has been used in various situations, especially in areas known for their environmental vulnerability [14]. The model has proven efficiency in semi-arid conditions in many cases over the world (California, Mexico, Spain, Morocco, Tunisia, Iran, Italy…) [15,16,17,18,19,20].…”

Section: Introductionmentioning

confidence: 99%

SWAT streamflow modeling for hydrological components’ understanding within an agro - sylvo - pastoral watershed in Morocco

Brouziyne¹,

Abouabdillah²,

Bouabid³

et al. 2018

jmes

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Being generally described as coherent entities in hydrological sense, watersheds are considered as study units to assess hydrological cycles and to come up with water management strategies. Hydrological modeling is a tool that can offer the chance to achieve these goals. The model Soil and Water Assessment Tool (SWAT) has been widely used in various parts of the world to support decision making on water management, and proved its efficiency in many arid and semi-arid areas even when different economical activities are held in the watershed (farming, pasture, forestry...). In this study, the SWAT model has been applied over R'dom watershed, agro-sylvo-pastoral basin located in a semi-arid area in North-Western Morocco, with the aim to simulate the hydrological processes occurring in the study basin as a preliminary step. The simulation was performed across the period 2004 to 2009 and gave satisfactory goodness-of-fit levels in daily time step (NSE= 0.58, R 2 = 0.79, PBIAS=19% during calibration and NSE=0.65, R 2 = 0.73, PBIAS=20% during validation). The results of the study showed that the water balance in R'dom watershed is dominated by evapotranspiration (61% of rainfall); surface runoff and water yield represent 8.3% and 25.2% of rainfall respectively. The water resources distribution within the watershed is uneven and follows a decreasing gradient matching the flow direction. The SWAT model succeeded to reflect the different hydrological processes in the study watershed and can be used to build integrated watershed management strategies within the studied basin and in other similar contexts.

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Sensitivity analysis of a GIS-based model: A case study of a large semi-arid catchment

Cited by 18 publications

References 37 publications

Impacts of Climate Change and Human Activities on the Three Gorges Reservoir Inflow

Impacts of Climate Change and Human Activities on the Three Gorges Reservoir Inflow

Water Resources Response to Climate and Land-Cover Changes in a Semi-Arid Watershed, New Mexico, USA

SWAT streamflow modeling for hydrological components’ understanding within an agro - sylvo - pastoral watershed in Morocco

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