DROUGHT ANALYSIS IN THE MEDITERRANEAN REGION USING SATELLITE AND METEORIGICAL-BASED DROUGHT INDICES (2000-2014)
UYDU VE İSTASYON TABANLI KURAKLIK İNDEKSLERİ KULLANILARAK AKDENİZ BÖLGESİNDE KURAKLIK ANALİZİ (2000-2014)

Author : Mehmet Ali ÇELİKSOY -- Murat KARABULUT
Number of pages : 341-370

Abstract

There is a drought every 10 years in the Mediterranean Region. So monitoring of drought is important in Mediterranean Region. In this study, MODIS NDVI data with 16-day temporal and 250-m spatial resolution bands are used. Beside this, we carried out meteorology-based drought analyses on a monthly and yearly scale, by using climate data. We compared findings which were obtained using different methods with each other. This study shows that satellite-based vegetation index models provided important conveniences in understanding and forecasting drought phenomenon. Particularly, when station-based drought indices were integrated into satellite-based models, results becomes more reliable and accurate. By integrating both methods into each other, limitations are removed and at the same time, opportunity to perform more detailed analyses about climate and vegetation emerges. Results of our study show that arid and moist conditions have been often experienced in Mediterranean Region and it is possible to obtain detailed information about these conditions, from vegetation index models. The fact that vegetation index models reflected drought and moist conditions shows that drought could be estimated using vegetation index models, for areas on which there are no meteorological (weather) stations using vegetation index models.

Keywords

Mediterranean Region, Vegetation Index Models, Drought, MODIS, Climate, Remote Sensing.

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