Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.ejrh.2024.102132
Lizenz creative commons licence
Titel (primär) Quantifying agricultural drought in the Koshi River basin through soil moisture simulation
Autor Banjara, P.; Shrestha, P.K.; Pandey, V.P.; Sah, M.; Panday, P.
Quelle Journal of Hydrology: Regional Studies
Erscheinungsjahr 2025
Department CHS
Band/Volume 57
Seite von art. 102132
Sprache englisch
Topic T5 Future Landscapes
Keywords Drought; Hazard assessment; Koshi River Basin; MHM; SMI
Abstract Study Region
The Koshi River Basin (KoRiB), one of the headwaters of the Ganges in Eastern Nepal.

Study focus
The mesoscale hydrological model (mHM) is applied to assess the historical spatio-temporal hazard of agricultural drought using soil moisture index (SMI) in the KoRiB.

New hydrological insights for the region
The research indicates that KoRiB was most severely impacted by drought from 1976 to 2000, with the two major droughts occurring in 1982–1989 and 1991–1996. Both events had an average duration of over 12 months and affected more than a quarter of KoRiB’s area. Notably, between 1951 and 1975 and 2001–2020, the regions of elevated drought hazard shifted from the middle-eastern to the western area of the KoRiB. Previously, droughts were largely the result of precipitation shortfalls, but in the 21st century, rising temperatures have emerged as a significant factor, accompanying the ongoing precipitation deficits. This underscores the imminent occurrence of such compounded effects and emphasizes the importance of monitoring systems to anticipate and mitigate such events.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=30202
Banjara, P., Shrestha, P.K., Pandey, V.P., Sah, M., Panday, P. (2025):
Quantifying agricultural drought in the Koshi River basin through soil moisture simulation
J. Hydrol. Reg. Stud. 57 , art. 102132 10.1016/j.ejrh.2024.102132