- Authors: Danang Sri Hadmoko
- From: Department of Environmental Geography, Faculty of Geography, UGM
Abstract:
As an impact of secondary hazard after Kelud eruption in 2014, lahar flowing along Konto River located in the northern flank. Lahar flood caused many destruction to the element at risk mainly in agricultural and infrastructure. The aims of these study are to identification which elements that have a most damage impact due to the disaster. We try to compare the map of Konto river before and after Kelud’s eruption. So this study can determine which is the most destructed one. Satellite imagery was helpful for this study, because they can record same area periodically. This Study using very high resolution satellite to conduct this research, i.e. GeoEye-1 for pre disaster analysis and WorldView-2 for post disaster analysis (2 m for both). From the result can know that two regencies surrounding Kelud as the most affected by lahar, that is Malang and Kediri. About 679646, 63 m2 and 19935,04 m2 of lahar befall on it respectively. Actually lahar only occur inside the riverbank, but at the same time local farmer also plant many crop in the middle of the river. So that, when lahar occur on the river, it swept out the agricultural area. As a consequences, they cannot take the harvest time and they need to change their occupation because the land was losses.
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