globalchange  > 气候减缓与适应
DOI: 10.1016/j.scitotenv.2018.09.334
WOS记录号: WOS:000447871400098
论文题名:
Impacts of climate change on streamflow and sediment concentration under RCP 4.5 and 8.5: A case study in Purna river basin, India
作者: Nilawar, Aditya P.; Waikar, Milind L.
通讯作者: Nilawar, Aditya P.
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
ISSN: 0048-9697
EISSN: 1879-1026
出版年: 2019
卷: 650, 页码:2685-2696
语种: 英语
英文关键词: Climate change ; RCM ; SWAT ; Streamflow ; Sediment concentration
WOS关键词: SWAT MODEL ; WATER-RESOURCES ; UNCERTAINTY ANALYSIS ; HYDROLOGIC RESPONSE ; CHINA ; CATCHMENT ; BALANCE ; SOIL ; AVAILABILITY ; SENSITIVITY
WOS学科分类: Environmental Sciences
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

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 115.94 m(3)/s whereas average monthly sediment concentration by 32.58 to 162.96 mg/l under RCP 4.5 and 8.5. In particular, streamflow and sediment are expected to increase significantly from June to September at the outlet of the basin. The study results give insight into future hydrological scenarios which will be useful for policy makers to implement effective water resource strategies. (C) 2018 Elsevier B.V. All rights reserved.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/129793
Appears in Collections:气候减缓与适应

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作者单位: SGGS IE&T, Dept Civil Engn, Nanded 431605, India

Recommended Citation:
Nilawar, Aditya P.,Waikar, Milind L.. Impacts of climate change on streamflow and sediment concentration under RCP 4.5 and 8.5: A case study in Purna river basin, India[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019-01-01,650:2685-2696
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