The Impact of Solar Radiation Management in Mitigation Hazard at Indonesia. Case Study: The Extreme Rainfall of Surigae Tropical Cyclone in Papua Province, Indonesia

[Geoengineering News]

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5077966

Authors

Rahmat Gernowo, Hendri, Ahmad Faqih, Sorja Koesuma, Jassica Listyarini, Dimara Kusuma Hakim, Delfina Azzahra Kusuma

15 January 2025

Abstract

The province of Papua is situated in the eastern part of Indonesia. Recently, there has been a notable increase in the frequency of tropical cyclones and severe weather phenomena in this area. Understanding the ramifications of tropical cyclones, particularly their influence on weather patterns, including extreme rainfall, is crucial. This study seeks to explore the consequences of extreme rainfall and identify possible solutions. The tropical cyclone Surigae, which made landfall on April 18, 2021, considerably affected the region, particularly on Timor Island and Sumba Island. We employed the ERA5 model to analyze the atmospheric dynamics related to rainfall during these tropical cyclone events. Additionally, we applied Bias correction from GeoMIP to evaluate the rainfall data and compare the outcomes. The findings indicate a strong correlation between both datasets, with a general decrease trend observed.

Source: SSRN