AN OVERVIEW OF DROUGHT ANALYSIS: ASSESSING DROUGHT SEVERITY BASED ON FLUCTUATION IN RAINFALL TREND BY STANDARD PRECIPITATION INDEX FOR SHIVAMOGGA DISTRICT
DOI:
https://doi.org/10.29121/granthaalayah.v5.i4RASM.2017.3364Keywords:
ShivamoggaDistrict, Standard Precipitation Index, Drought Severity Analysis, Rainfall DataAbstract [English]
The Standard precipitation index expresses the actual rainfall as a standardized departure with respect to rainfall probability distribution function and hence the index has gained importance in recent years as a potential job indicator permitting comparison across space and time. The computation of SPI requires long term data on precipitation.
Droughts are hydro metrological events affecting vast regions and causing significant structural and non-structural damages. Drought predictions may prevent these type of adverse consequences to a significant extant.
This work regarding the drought analysis by assessing the drought severity based on fluctuation in rainfall trend by standard precipitation index for Shivamogga district by 30years rainfall data from rain gauge reading of different station in different Taluk of Shivamogga district.
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References
WU Man-chi, a brief introduction to standardized precipitation index; www.hko.gov.hk>ele_spi_e retrieved on September 2013.
M. Svoboba, M. Hayes AND D. Wood: World meterological precipitation organization, Standard precipitation user guide. 1090, 2012,3.
Guttman, N.B., Accepting the standardized precipitation index user guide algorithm. J. Amer. Water resource: 1999, 35(2), 311-322 DOI: https://doi.org/10.1111/j.1752-1688.1999.tb03592.x
Sangitha Mishra. S, Nagarajan. R: Drought accessment in the Tel Watershed, Indian Institute of Technology: 2011, 3
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