1Department of Soil and Water Conservation Engineering, Dr. A. S. College of Agricultural Engineering & Technology, Rahuri-413 722, India
2Department of Agricultural Engineering, Post Graduate Institute, MPKV, Rahuri-413 722, India
3Department of Statistics, Post Graduate Institute, MPKV, Rahuri-413 722, India
Department of Agricultural Engineering, College of Agriculture, Dr. B.S.K.K.V., Dapoli-415 712, India
*E-mail: palkarshweta23@gmail.com
Online Published on 20 February, 2024.
The present study was an attempt to examine the spatiotemporal variability of precipitation over a part of the Upper Krishna River Basin confined in Maharashtra state having a geographical area of 15,190 km2. Daily rainfall data of 15 stations located in the study area for theperiod of 52 years from 1970 to 2021 were analysed using Man-Kendall's test and Sen's slope estimator test. Almost all stations showed a non-significant rising trend in monsoon rainfall out of which four stations viz. Shahuwadi (12.53 mm/year), Sangli (2.27 mm/year), Karad (3.51 mm/year), and Wai (4.83 mm/year) showed a significant rising trend in monsoon rainfall. Islampur and Tasgaon stations located in Sangli district showed non-significant falling trend. For the decade 2010-2020 all stations showed rising trend in annual rainfall. Six stations in Kolhapur and Satara districts of Maharashtra viz. Kolhapur, Hatkalangale, Shahuwadi, Panhala, Satara, Mahabaleshwar, Wai, and Koregaon showed the presence of extreme rainfall events in the last three decades. Also, many stations observed a rise in the total number of heavy rainfall days for the last decade.
Trend analysis, Man-Kendall’s test, Extreme event analysis, Upper Krishna River Basin
