- 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