Impacts of climate change on streamflow and sediment concentration under RCP 4.5 and 8.5: A case study in Purna river basin, India.
Climate change
RCM
SWAT
Sediment concentration
Streamflow
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
10 Feb 2019
10 Feb 2019
Historique:
received:
31
05
2018
revised:
22
09
2018
accepted:
26
09
2018
pubmed:
9
10
2018
medline:
9
10
2018
entrez:
9
10
2018
Statut:
ppublish
Résumé
Climate change has a significant effect on various hydrological processes in a large river basin. The assessment of these processes is also useful for water resource management and long-term sustainability of any hydrological project. In this study, an attempt is made to quantify the effects of climate change on streamflow and sediment concentration in the Purna river basin, India. Three Regional Circulation Models (RCMs) with two Representative Concentration Pathways (RCPs) 4.5 and 8.5 for the four future periods of P1 (2009-2031), P2 (2032-2053), P3 (2054-2075) and P4 (2076-2099) are considered. Differences in scenarios are compared with the base period 1980-2005. The SWAT is used on monthly basis for the period 1980 to 2005 with calibration period 1980 to 1994 and validation period 1995 to 2005. The projected precipitation and temperature show a significant increasing trend compared to the baseline condition for both RCPs. Similarly, the average monthly streamflow is projected to increase by 24.47 to 115.94m
Identifiants
pubmed: 30296775
pii: S0048-9697(18)33803-8
doi: 10.1016/j.scitotenv.2018.09.334
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2685-2696Informations de copyright
Copyright © 2018. Published by Elsevier B.V.