Seminar Nasional‐PJ dan SIG I Tahun 2010 xviii APLIKASI SISTEM INFORMASI GEOGRAFIS (SIG) KERAWANAN BAHAYA BANJIR DAS BENGAWAN SOLO HULU BERBASIS WEB Andriyani, M. Yusuf, Al Hidayah, Amin Sri Lestari, Dita Zuhrah Ulifani Mahasiswa Fakultas Geografi Universitas Muhammadiyah Surakarta Jl. A. Yani Tromol Pos 1 Pabelan, Surakarta 57102 riyan@gmai.com ABSTRACT Floods represent the part of environmental problems of physical on the surface of earth resulting loss and can be interpreted an situation where irrigate river abundance, suffusing area of around him until certain deepness till generate loss. This research is conducted in DAS Bengawan Solo, where floods phenomenon that happened in this area still predominated by high rainfall and overflowing irrigate river coming from Bengawan Solo. Target of this research is to develop SIG base on web which is implementation to know floods danger susceptance in the case of giving information about wide of, inclination of bevel, use of farm, land;ground type, and house amount which must be evacuated in the event of floods in Region DAS Bengawan Solo, so that expected can give theoretical knowledge and aplikatif concerning SIG role in floods disaster mitigasi. Research methodologies cover: system development, source of data, analysis, groove used software and overlay in research. Result of this research is Geographical Information system application is Regional Susceptance Danger Floods of DAS Bengawan Solo in the form of Geographical Information System software base on web, where this application desain to give information about danger crisis the happening of floods in DAS Bengawan Solo region. Keywords: floods, susceptance, web GIS