XXII ISPRS Congress, 25 August to 01 September 2012, Melbourne, Australia
Ugur Alganci, Dursun Seker, and Elif Sertel
“The rapid population growth and related urbanization in developing countries mostly affect the metropolitan cities. The urban sprawl that comes with rapid population growth changes land use / cover (LULC) dynamics that mostly results with decrease in natural resources such as forests or pastures and farmlands. In the last decade, a common population growth is observed all over Turkey with increase at 66 provinces out of 81. Antalya is one of the important cities of Turkey that exposed to unplanned urban sprawl. It was at the 29th place according to 1927 population census while it rose to 7th place according to 2000 census results. According to “9th Progress Report” issued by Ministry of Development, Antalya is the city that exposed to fastest population growth with a rate of %0, 48 during 1990-2000.
Antalya is the most popular touristic city of the Turkey, with its 650 km of coastline, appropriate climatic conditions, historical and natural beauties. Its population has increased due to employment facilities and migration related to tourism. It is also a n important agricultural center with its fertile soil and rainy climate. Development in industry and building trade also results with continuous development and rapid urbanization. Main effects of population growth and related urbanization are; change of watersheds, forests and agricultural lands into settlement in an irregular and uncontrolled way and urban sprawl.
“In terms of effective analysis of urbanization; determination of spatial distribution and trend, effects on other land cover types and relationship between topographic parameters become very important. At this point, spatial and topographic information derived from satellite imagery can be used as main data resources. Images obtained from optical satellites that are capable of observing large areas fastly and repeatedly, have been used for decomposition of land cover types and time dependent changes of them depending on spatial, spectral and temporal resolution capabilities. Spatio-temporal analysis of satellite images provides valuable information about changes in LULC dynamics.
“In this research, the effects of urban sprawl over LULC dynamics of Antalya were investigated in terms of spatial and areal changes using multitemporal satellite imagery. Landsat 5 TM images belonging to 1984, 2001 and 2010 were subjected to registration and supervised classification process. LULC information derived from these analyses was used for areal changes between years. Topographic parameters such as aspect and slope were produced from ASTER GDEM data at the same time. After applying a raster –vector conversation to whole dataset, relationship between LULC changes and spatial-topographic characteristics of the area was determined.”