Estimating Drought Index Using Standardized Precipitation Index from 1901 to 2015, Turkey

Year 2017, Volume: 12 Issue: 2, 154 - 160, 30.06.2017

Nahida Hameed Hamza Al-qaysi Sukru Dursun , Mushtaq Abdulameer Alwan Almuslehi

Abstract

Complete administration and decision making in
the subject of water resources needs dependable forecast for drought region,
duration and severity. The major objective of this study is to determine
drought features which are significant for drought awareness and management
using rainfall data for 115 years (1901-2015) by compute Standardized
Precipitation Index (SPI) values in different time scales (1, 3, 6 and 12
months), where the SPI is used for Drought Early Warning. The drought index is founded
on monthly precipitation, SPI calculated over the Turkey region 38.9637 °N and
35.2433° E, at time scales of 1, 3, 6 and 12 months for the period 1901–2015. Trends
in SPI values denote that the ratio of Turkey experiencing extreme and/or severe
drought provisions has different considerably through these years.

Keywords

Standardized Precipitation Index (SPI), Drought Index, Precipitation, Turkey

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