Geology and a spatio-temporal analysis of rainfall data in Jeli, Kelantan

This research is based on the selected flood-prone locality in the chosen region. Jeli is one of the districts in Kelantan which located in East Coast of Peninsular Malaysia, at the foot of the Main Range. The range is mostly made up of granitic rocks, with a few enclaves of sedimentary and meta sedimentary rocks thrown in for good measure. The objectives of the research are to update a 1:25,000-scale geological map of the area , to identify the spatio temporal pattern of rainfall data in Jeli area and last but not least to develop flood prone area map. To create geological maps, geographers employ a specific methodology, and GIS tools are used. The purpose of this study is to use suitable spatial statistical methods to time series rainfall data in Kelantan, with the intention of characterizing and determining the pattern of this data. Rainfall totals for each month from 2009 to 2019 were culled from records kept by the Department of Irrigation and Drainage (DID). The primary goal of this research is to use statistical methods to verify or disprove the hypothesis that excessive rainfall is the primary cause of perennial floods in the Jeli district of Kelantan. ArcGIS has been used to do a geographical analysis on the obtained rainfall data, allowing for a comparison of the rainfall distribution between 2009 and 2019. As a result, the Mann-Kendall (MK) Test implemented in SPSS has been used to examine the structure of the time series rainfall data. This study concludes from its analyses that the extreme flood event of 2014 was caused by the year's exceptionally high rainfall intensity.