Hydrologic Drought Investigation In The Kemer Dam Basin Using The Spi Method
Drought occurs during a specified period of time if the amount of natural water that is used by all living things and
various systems is below long-term average or normal levels in a regional scale. The analysis of how the droughts can be
caused by the lack of rain on the hydrologic systems of different regions might help define the drought events without
predetermined time, duration and severity. Since Turkey is located on the semi-arid area of the world, drought frequently
occurs at various periods. The Standard Precipitation Index (SPI) method is widely used on the drought researches. This
method is very easy to apply since the only meteorological variable needed for it is precipitation. Another important advantage
of it is the fact that is very flexible on the assessments of the drought on different timescales. In this research, a hydrological
drought assessment in the Kemer Dam Basin will be made using the SPI method. The regionally averaged SPI time series at
different time scales are used to determine the most appropriate time scale for monitoring hydrologic drought on river flows in
the dam basin. The drought prediction for the basin will be very important in decreasing the effects of the drought and it will
provide important data for the management of the sustainable water sources, aiding in the establishment of drought
management plan for the basin.
Key words- Hydrologic Drought, Kemer Dam, River Flow, SPI.