Spatial and temporal variability of dryness characteristics in Turkey

摘要: Drought may occur in almost every climatic region on Earth at any time. Understanding the nature and magnitude of dryness drought events are crucial mainly semi-arid regions characterized by water shortage warm/hot dry Mediterranean type climate. The present article analyses major patterns spatial temporal characteristics climatological Turkey. This study adopts a relatively new approach for characterizing over certain region; days since last rain (DDSLR). DDSLR place can be evaluated using three different metrics; its severity, consistency uncertainty enabling to intra- inter-annual variations dryness. is also coupled with Climate Index (MCI) approach, measuring seasonality rainfall. Analyses were based daily precipitation data recorded 69 principal synoptic meteorological stations Turkish Meteorological Service network during period 1970–2011. The distributions MCI various metrics presented analysed. Overall, show their highest values southern parts Turkey along borders Syria Iraq. These indices even larger than central which receives less annual On other hand, minimum Black Sea northern Turkey. Logarithmic equations f(DDSLR) = × ln(MCI) + b fitted describe dependence these MCI. All regressions highly significant enable evaluate without data. Finally, linear trends longest each year calculated reveal toward more severe conditions north-western east Turkey.