Geographic information systems (GIS) for the determination of inundation maps of Lake Mogan, Turkey

Merzi N., Aktas M.

WATER INTERNATIONAL, cilt.25, sa.3, ss.474-480, 2000 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 3
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1080/02508060008686856
  • Dergi Adı: WATER INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.474-480
  • Anahtar Kelimeler: surface hydrology, floods, inundation maps, SCS method, Lake Mogan, Geographic Information Systems (GIS)
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

The use of geographic information systems (GIS) allows for a very efficient analysis of spatial hydrologic data for water resources projects especially for water control studies. rn this respect, flood hydrographs for Mogan basin, Turkey for different durations and return periods are determined by using Soil Conservation Service (SCS) method. The basic parameter of the SCS method, curve number (CN), is evaluated by using GIS employing digital land use and hydrologic soil group data derived from analog maps. A Digital Elevation Model (DEM) of Mogan basin is constructed by making use of topographic maps with a scale of 1:25, 000. Flood hydrographs for these three productive subbasins of lake Mogan are attached and superimposed to obtain the total flood hydrographs. Total flood hydrographs entering into Lake Mogan are routed by Puls Method to determine the outflow hydrographs fi;om the lake; then, associated lake levels are computed. Furthermore, inundation maps of Lake Mogan are obtained; these results are presented by GIS techniques.