Environmental Indicators
Environmental Indicators
4.5- Precipitation

This impact indicator represents amount of average precipitation on unit area in time series.

The long term annual average precipitation is about 574 mm in Turkey. 507 mm average rainfall was recorded in 2017 (January 1 to December 31). When the rainfall distribution over the years is studied, it is observed that a rainy period started after the very dry year occurred in 2008. After the drought was observed again in 2013, rainfall occurred higher than the long term annual average during the next 3 years in Turkey; although in 2017 observed precipitation is less than normal.

It was observed that mean areal precipitation in 2017 was 12% less than the long term annual average, and 15% less than the average in 2016. Regionally, while there is increase only in Marmara and decrease has been seen in other regions. The highest increase was in Marmara region with 4% and the highest decrease was in South East Anatolia region with 32% [26].

 

GRAPH 17- ANNUAL AREAL PRECIPITATION IN TURKEY

Source: Ministry of Agriculture And Forestry, Turkish State Meteorological Services