Determining the Channel Pattern Changes of Kizilirmak River Using Aerial Photos and Sedimentological Cross Section Analysis (between 1954-2009)(<Featured Articles>Turkey-Japan Joint Conference on Geomorphology)
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概要
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The classification of river channels is very important for geomorphological studies. But for to analyse accurately the fluvial process in a region, the most suitable classification method must be selected. This study aims using the methods which based on sinuosity and braiding index of river channelss, to introduce the pattern changes of Kizilirmak channel (Turkish name is Kizilirmak)in Avanos (Nevsehir) region between 1954-2009. In our stuty aerial photos (1954-1992 years), contemporary satellite images, topographic maps and field searches are assessed. Consequently, the Kizilirmak river channel, between Sarihidir-Ciftedam (Avanos) has 10% braided index and 1.1 sinuosity rate in 1954. Between 1992 and 2009, braided index of it decreases to 3% and sinuosity rate is calculated as again 1.1. For those 55 years, the river has altered from low braiding pattern to transition type between low braided-low meandering pattern. The probable reasons of this change are supposed as the effects of Hirfanli Dam on the river and climatic factors.
- 2011-04-25
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