Establishing A Basic Gis Database For Madarsoowatershed in Golestan -Iran

Remote- sen sin g a nd geogra phic information system(g is ) techniques have bcen ut il ized in thi s study toes tablis h a gis datab ase fo r madarsoo wa ters hed ingo lcs tan pro vinc e. among th e major co ns tituents o f thi sdat abase we can refcr to are : composite multicolo rimages from laidsat tm (30 m resoluti on ); indianirs ici l d (2 3.5 and 5.8 m reso lut ion) and qui ck bird(6 0 ern resoluti on) sa te ll ite s an d land -u se/land-coverma ps deri ved tro m the se im ages: road networks; soilinformation : digi tal terra in model (dtm); s lope andaspect inform ati on derived from di gital ele vatio nmodel ; a nd mete oro logi cal a nd hydrolo gic al dat a . a'proj ect o ffice ' wa s esta blished with trained personn el ata provincia l ce ntre effec tively to usc the result ant gis inplanning, mon itoring and in applications for floodmanagement. a s we ll as to upd ate it regula rly. t heapproach of geo gra phica l dat a base ha s the po te ntial tostore a nd man age differe nt dat a with di ffer ent formatsseamlcss ly. on th e othe r hand it prevent s rep eating dat a.decrease errors. and sav es th e tim e and ex pe rts.th e es ta ldi shcd dat a base wa s a pplied in mik e i iso ftwa re to hyd rol ogi cal and hyd ro lica l a naly sis of floodin the study ing area.