Drought analysis for water management on geographic information system

Abstract

The study of drought factors to analyze and manage water is very important. The main contributing factor to drought is unusual summer weather, wind, pressure and air mixtures include water vapor and water droplets. In this factors can be analyzed for rainfall in the lower central river basin area and the preliminary data of the research used to analyze drought from Thai Meteorological Department (TMD). This research analyzes the factors that cause drought, including rainfall, temperature, pressure, wind and precipitation. The Multiple linear regression analysis used to determine the relationship of factors causing drought. It was found that rainfall had a statistically significant relationship with temperature and pressure. In addition, using the Geographic Information System (GIS) an analysis of rainfall in the lower central river basin from October 1920 to September 2021 to found that from August to October, there is a lot of heavy rainfall according to the multiple linear regression equation. Therefore, the created multiple linear regression equations can be effectively used in the analysis of drought areas in the lower central river basin area.