The Influence of Physical Geography Parameters on Hydrometeorological Disasters (Case Study: Banjarmasin City)

Abstract Data from the National Disaster Management Agency (BNPB) 2022 show that there were 1.381 occurrences between January and April 26. Of them, 536 incidents were flood catastrophes. The largest flood of 2021 happened in South Kalimantan at the start of the year, with losses projected to be as high as IDR 1.2 trillion. In addition, South Kalimantan Province National Board for Disaster Management reported that the Banjarmasin city remained under water, with water level above ± 50 cm and 1.5 m. 108,524 individuals had been affected, and 35,138 dwellings were affected. In order to address the hydrometeorological (flood) catastrophe risks in Banjarmasin City, this research uses spatial statistical analysis to examine the key factors that contribute to flood disasters. GWR stands for Geographically Weighted Regression. Rainfall, soil type, and land usage are among the criteria that are used. Following the GWR spatial statistical assessment, recommendations are offered that may be pursued further in the form of a research on hydrometeorology and related strategic issues for disaster management policies.