Lakshmi Raghu Nagendra Prasad Rentachintala, M. G. Muni Reddy, P. Mohapatra
{"title":"Trends of extreme flows of Krishna river at a barrage, India","authors":"Lakshmi Raghu Nagendra Prasad Rentachintala, M. G. Muni Reddy, P. Mohapatra","doi":"10.1080/15715124.2022.2079660","DOIUrl":null,"url":null,"abstract":"ABSTRACT The present study analyzes trends of extreme flows for the Krishna river at the Prakasam barrage, Vijayawada of Andhra Pradesh state, India. Annual maximum and minimum flows are considered using available data from the CWC (Central Water Commission) portal from 1965–1966 to 2019–2020. The trend analysis of extreme flows is carried out using the Mann-Kendall trend test, Sen’s slope, and modified Mann-Kendall test, that is, bootstrapped Mann-Kendall trend test with optional bias-corrected pre-whitening. Also, R programming is applied for the trend analysis of extreme flows. Extreme annual flows are in decreasing trend. Annual maximum flow has significant decreasing trend with Sen’s slope of 105.52 cumecs per year. Annual minimum flow has insignificant decreasing trend at a magnitude of 0.0002 cumecs per year. Trend results of the present study are useful for the trend analysis of extreme river flows.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":" ","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2022-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of River Basin Management","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/15715124.2022.2079660","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"WATER RESOURCES","Score":null,"Total":0}
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Abstract
ABSTRACT The present study analyzes trends of extreme flows for the Krishna river at the Prakasam barrage, Vijayawada of Andhra Pradesh state, India. Annual maximum and minimum flows are considered using available data from the CWC (Central Water Commission) portal from 1965–1966 to 2019–2020. The trend analysis of extreme flows is carried out using the Mann-Kendall trend test, Sen’s slope, and modified Mann-Kendall test, that is, bootstrapped Mann-Kendall trend test with optional bias-corrected pre-whitening. Also, R programming is applied for the trend analysis of extreme flows. Extreme annual flows are in decreasing trend. Annual maximum flow has significant decreasing trend with Sen’s slope of 105.52 cumecs per year. Annual minimum flow has insignificant decreasing trend at a magnitude of 0.0002 cumecs per year. Trend results of the present study are useful for the trend analysis of extreme river flows.
期刊介绍：
include, but are not limited to new developments or applications in the following areas: AREAS OF INTEREST - integrated water resources management - watershed land use planning and management - spatial planning and management of floodplains - flood forecasting and flood risk management - drought forecasting and drought management - floodplain, river and estuarine restoration - climate change impact prediction and planning of remedial measures - management of mountain rivers - water quality management including non point source pollution - operation strategies for engineered river systems - maintenance strategies for river systems and for structures - project-affected-people and stakeholder participation - conservation of natural and cultural heritage
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