Trend analysis of Annual, Seasonal and South-west Monsoon rainfall on Sahyadri in Maharashtra

The result obtained from a trend analysis of the Annual and Seasonal rainfall of Sahyadri in Maharashtra. In this region, there are great disparities of the rainfall occurrence of 1983 to 2012. In the present study analyzes the trend of Post-Monsoon, Monsoon, Pre-Monsoon and Annual rainfall all over the Sahyadri from 1983 to 2012.The rainfall trend has been worked out for the entire study region on the basis of 90 raingauge stations spread all over the Sahyadri. The Amboli at an elevation of 720 meters gets average rainfall of 6800 mm. other stations of the eastern side of this belt gets average rainfall ranging between 2500 mm to 3200 mm. In the month of June, rainfall is decreasing in the study area since 1983 to 2012. The average decline trend of June month is -0.2mm, similarly the rainfall trend of July is negative (-0.84 mm). The trend of August and September month is positive (1.87 mm & 4.92 mm respectively).Rainfall is decreasing from the southern part to the northern part of Sahyadri. The rainfall pattern of June and July are shifting towards the August and September month in the study region. At the Mahableshwar and Amboli raingauge station rainfall is decreasing in the all seasons.