气候变化领域集成服务门户(CCPortal): Spatio-temporal trend and homogeneity analysis of gridded and gauge precipitation in indravati river basin; India

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DOI	10.2166/wcc.2018.183
	Spatio-temporal trend and homogeneity analysis of gridded and gauge precipitation in indravati river basin; India
	Praveenkumar C.; Jothiprakash V.
发表日期	2020
ISSN	20402244
起始页码	178
结束页码	199
卷号	11 期号:1
英文摘要	The study aims to analyze spatio-temporal variations in rainfall data over Indravati River basin, India. Three rainfall data sets, Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA), India Meteorological Department (IMD) grid, and IMD gauge were used. Data from 2001 to 2013 were analyzed for three time scales, namely, daily, monthly, and annual. Analysis showed good correlation between IMD gauge and TMPA grid rainfall at monthly time scale, poor correlation is observed at daily and annual time scales. Mann–Kendall (MK) trend test reveals a significant increasing trend of IMD gauge and IMD grid data, whereas TMPA rainfall is free from trends at the majority of stations for daily time scale. Nevertheless, both IMD grid as well as TMPA grid rainfall can be considered as a better representative of rainfall, since it is attained from observed rainfall data over the country. The Pettitt and standard normal homogeneity tests show that TMPA rainfall has a more non-homogeneous nature, whereas IMD grid rainfall and IMD gauge rainfall data are homogeneous. Overall, the trend and homogeneity analysis indicate that TMPA grid and IMD grid rainfall is in line with IMD gauge data, however IMD grid rainfall has the edge over TMPA grid data. © IWA Publishing 2020.
英文关键词	Homogeneity; India meteorological department (IMD) grid rainfall; Spatio-temporal variations; Trend analysis; TRMM Multisatellite Precipitation Analysis (TMPA) grid rainfall
语种	英语
scopus关键词	Rain; Time measurement; Watersheds; Daily time scale; Good correlations; Homogeneity analysis; Monthly time scale; Spatio temporal; Spatio-temporal variation; Three time-scales; Tropical rainfall measuring missions; Rain gages; data set; homogeneity; precipitation assessment; precipitation intensity; raingauge; spatiotemporal analysis; trend analysis; India; Indravati Basin
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147959
作者单位	Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
推荐引用方式 GB/T 7714	Praveenkumar C.,Jothiprakash V.. Spatio-temporal trend and homogeneity analysis of gridded and gauge precipitation in indravati river basin; India[J],2020,11(1).
APA	Praveenkumar C.,&Jothiprakash V..(2020).Spatio-temporal trend and homogeneity analysis of gridded and gauge precipitation in indravati river basin; India.Journal of Water and Climate Change,11(1).
MLA	Praveenkumar C.,et al."Spatio-temporal trend and homogeneity analysis of gridded and gauge precipitation in indravati river basin; India".Journal of Water and Climate Change 11.1(2020).