Automatic detection of shoreline change on coastal Ramsar wetlands of Turkey

KULELİ T., GUNEROGLU A., KARSLI F., DIHKAN M.

OCEAN ENGINEERING, cilt.38, sa.10, ss.1141-1149, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 38 Sayı: 10
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.oceaneng.2011.05.006
  • Dergi Adı: OCEAN ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1141-1149
  • Anahtar Kelimeler: Coastline change, Coastal erosion, Landsat, DSAS, LAND-COVER CHANGES, WATER INDEX NDWI, SATELLITE IMAGERY, COASTLINE, TM, DELINEATION, EXTRACTION, ZONE, ETM+
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

This research focuses on the shoreline change rate analysis by automatic image analysis techniques using multi-temporal Landsat images and Digital Shoreline Analysis System (DSAS) along the coastal Ramsar wetlands of Turkey. Five wetlands were selected for analysis: Yumurtalik Ramsar, the Goksu Ramsar, Kizilirmak and Yesilirmak wetlands and Gediz wetlands. Accretion or erosion processes were observed on multi-temporal satellite images along the areas of interest. Landsat images were geometrically and radiometrically corrected for the quantitative coastline delineation analysis. DSAS (Digital Shoreline Analysis System) was used as a reliable statistical approach for the rate of coastline change. For the detection of coastal change in Aegean part (Gediz wetland) of the study, zonal change detection method was used. As a result of the analysis, in some parts of research area remarkable shoreline changes (more than 765 m withdrawal and -20.68 m/yr erosion in Yumurtalik, 650 m withdrawal and -25.99 m/yr erosion in Goksu, 660 m withdrawal and -16.10 m/yr erosion in Kizilirmak and 640 m withdrawal and -4.91 m/yr erosion in Yesilirmak) were observed for three periods (1989, 1999 and 2009). Wetland in Gediz delta which is 35.57 km(2) was converted to sea or salt pan for the period 1975 and 2009. (C) 2011 Elsevier Ltd. All rights reserved.