The Trend Analysis of Lakes Region Precipitation Data in Turkey
Abstract
In recent years, population growth, urbanization, tainted water use
policies, water pollution due to industrialization and climate change has led
to the re-evaluation of water resources. Because the protection plans developed
in the past have lost their validity, the new prevention plans made today have
caused to the critical analysis. In this research, the monthly precipitation
data was analyzed for Lakes Region located in the Middle Mediterranean Regionin
Turkey. For this purpose, the data were subjected to homogeneity test, and the
Mann Kendall test, the Sen’s test and the lineer regression for trend analysis
were applied to data. The analyses for historical monthly precipitation records
were made to nine meteorological stations which identified in the study area:the Ağlasun, Barla,
Aksu, Bucak, Yalvaç, Sütçüler, Kızılkaya, Kasımlar, and Gelendost stations. Also, 3, 6,
9, 12 monthly Standardized Precipitation Index (SPI) values of these stations
were examined by using the Mann Kendall test, Sen’s test and lineer regression
to support historical trend analysis. According to the results of the tests, a
decreasing trend has been observed in most of the nine stations.
Keywords
Lakes Region,precipitation,Mann Kendall test,Sen’s test,linearregression
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