Conditions mild to moderate drought in October 2023 were recorded on 38% of the territory of Greece, the meteo.gr service of the Athens National Observatory reported on Tuesday.
The drought in central and eastern Macedonia and especially in the Thrace region is classified as moderate and in some places as extreme. Moderate drought prevailed in parts of the central and eastern Peloponnese, eastern central Greece (including Attica), central and southern Evia, and some Aegean islands. In addition, moderate drought conditions were observed in some areas of central and western Macedonia.
SPI-1 index for October 2023 in Greece (base period 1991-2020)
The SPI (Standardized Precipitation Index) drought index is a climatological indicator used to calculate the deviation of precipitation from the climatic mean and identify areas prone to drought.
The index is calculated for a certain period of time (for example, for 1 month – SP-1, for 3 months – SP-3, for 2 years – SPI-48, etc.). It was developed by the World Meteorological Organization (WMO) and is widely used to monitor and assess climate conditions around the world. For SPI values, positive values greater than 1 correspond to above-average precipitation relative to the reference climate period. Values between -1 and 1 indicate normal rainfall for the period, while negative values less than -1 indicate less rainfall than average and therefore drought. Values below -2 indicate severe drought.
Source: meteo.gr
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