Open AccessGeographical information system and satellite imagery for landslides analysis in Karo Regency based on human factors
Author(s) -
Ika Puji Hastuty,
Oktarino Ellysses Pratama
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1122/1/012019
Subject(s) - landslide , hazard , geography , hazard map , population , geographic information system , cartography , geology , ecology , geomorphology , environmental health , biology , medicine
Mapping of landslide potential areas was carried out in Karo Regency using an estimation model based on the Minister of Public Works Regulation No.22 of 2007. This regulation states that human activity is one of the aspects that causes landslides to occur. There are 7 factors in human activity that can cause landslides, namely; cropping patterns, excavating and cutting slopes, pond construction, slope drainage, building construction, population density, and mitigation efforts. All of these indicators are searched for their respective scores using the Q-Gis application which produces a total score to determine the class of landslide hazard levels. Based on the analysis, the level of landslide hazard in Karo Regency is divided into 3 classes, namely; low hazard level with an area of 1699.01 km 2 covering the sub-districts of Mardingding, Laubelang, Tigabinaga, Juhar, Munte, Kutabuluh, and Tiganderket. The moderate hazard level with an area of 259.34 km 2 covers the sub-districts of Payung, Simpang Empat, Naman Teran, Merdeka, Brand, and Barusjahe. The high hazard level with an area of 168.77 km 2 includes the sub-districts of Kabanjahe, Berastagi, Tigapanah, and Dolat Rayat.