Temporal and spatial analysis of some climate parameters in turkey supported by geographical information systems (GIS)

The studies on climate changes are being increased rapidly in Turkey. At the same time, by the decrease of the costs of softwares and rapid develeopment of technology, GIS technologies and spatial statistics started to being used more often. Studying climate parameters and the changes related with them by using various technology and disciplines, is very important especially today in which, climate change and global warming subjects are discussed frequently. The aim of this study is, to determine the change and distribution of climate parameters between 1975-2007 with the help of GIS analysis by choosing the suitable ones of climate datas(eg. minimum-maximum-mean temperature, rainfall, humidity) in Turkey. By the help of Kruskall-Wallis homogeneity test, the inhomogeneity of datas is exposed. The change in climate parameters, tested statistically by using Mann-Kendall test in type of regional increase and decrease trend. In addition to this, this temporal change is modelled spatial by using deterministic and jeostatistical interpolation datas. The considerable results can be summarized as following: (1) Interpolation methods applied by comparing the best and most reliable method of Kriging interpolation method is determined. (2) Then, the errors that were occured in the stations were observed if they have groupments or not and in result, it is found that there are no groupments in errors and they are distributed random.Key Words : Geographical Information Systems(GIS), Kruskall-Wallis, Mann-Kendall, Kriging