The spatial distribution of rainfall, extreme indices in Haryana (INDIA) using geographic information system

Abstract

A study was conducted to analyze rainfall, extreme indices pattern change in Haryana, India is considering five stations viz., Ambala, Bawal, Hisar, Karnal and Sirsa use observed data for total daily rainfall for the period 1985-2014 with an underlying objective of the better understanding of regional planning under anticipated climatic variability and change. The annual values of rainfall indices were plotted using the inverse distance weighted (IDW) interpolation technique in Geographic Information System (GIS) to analyze the spatial distribution of these indices. Different zones shown on maps indicate the magnitude of each index over the state. Spatial distribution of eleven annual rainfall indices suggested a varied pattern over the state that decreases diagonally from the northeast towards a southwest direction. The northern parts of the state (Panchkula and Yamunanagar districts) had highest rainfall occurrence and western parts (Sirsa, and parts of Fatehabad, Hisar and Bhiwani districts) had the least rainfall occurrence. GIS helps to interpolate and delineate zones for these indices on the basis of stations (point) data for future planning purposes as well as integrated spatial analysis to achieve sustainable agricultural development.