Extreme flood event analysis in Indonesia based on rainfall intensity and recharge capacity

Global Colloquium on GeoSciences and Engineering 2017

Narulita, Ida^1 ; Ningrum, Widya^1

Research Center for Geotechnology, Indonesia Institute of Sciences, Bandung

40135, Indonesia^1

关键词: Extreme flood events;    Rainfall characteristics;    Rainfall intensity;    Rainfall patterns;    Satellite rainfalls;    Soil distribution;    Spatial resolution;    Temporal resolution;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/118/1/012045/pdf
DOI  :  10.1088/1755-1315/118/1/012045

来源: IOP

【 摘 要 】

Indonesia is very vulnerable to flood disaster because it has high rainfall events throughout the year. Flood is categorized as the most important hazard disaster because it is causing social, economic and human losses. The purpose of this study is to analyze extreme flood event based on satellite rainfall dataset to understand the rainfall characteristic (rainfall intensity, rainfall pattern, etc.) that happened before flood disaster in the area for monsoonal, equatorial and local rainfall types. Recharge capacity will be analyzed using land cover and soil distribution. The data used in this study are CHIRPS rainfall satellite data on 0.05 ° spatial resolution and daily temporal resolution, and GSMap satellite rainfall dataset operated by JAXA on 1-hour temporal resolution and 0.1 ° spatial resolution, land use and soil distribution map for recharge capacity analysis. The rainfall characteristic before flooding, and recharge capacity analysis are expected to become the important information for flood mitigation in Indonesia.