Author/Authors :
arslan, onur niğde ömer halisdemir university - faculty of engineering - department of civil engineering, Niğde, Turkey
Title Of Article :
INVESTIGATION OF TRENDS IN METEOROLOGICAL DROUGHTS IN NİĞDE PROVINCE
Abstract :
Investigation of trends in meteorological droughts is important in water resources management. Niğde province is located in Konya Closed Basin and it is one of the most drought provinces receives low rainfall in Turkey. This study has two stages. In the first stage, Standardized Precipitation Index (SPI) values of Niğde province were calculated for 1-, 3-, 6-, 9-, 12-, 24- and 36-month time scales to identify meteorological droughts. In the second stage, trends in meteorological droughts in Niğde province were investigated by using Mann Kendall Rank Correlation (MKRC) test. Monthly total precipitation values for Niğde meteorological station between 1950 and 2015 were used for application. According to SPI values, 110 drought periods lasting for six months and more were determined for Niğde province for different time scales. The trend analysis results show that there have been statistically significant increasing trends at the 95% confidence level for all time scales except a 1-month time scale. This means that SPI values have shown a tendency towards wetness in Niğde province.
NaturalLanguageKeyword :
Drought analysis , Trend analysis , Standardized Precipitation Index (SPI) , Mann Kendall Rank Correlation (MKRC) Test , Niğde
JournalTitle :
Anadolu University Journal of Science and Technology. A : Applied Sciences and Engineering
