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Article · Atmosphere · May 10, 2022

European Grid Dataset of Actual Evapotranspiration, Water Availability and Effective Precipitation

Mărgărit‐Mircea Nistor, Alfrendo Satyanaga, Ştefan Dezsi, Ionel Haidu

Alfrendo Satyanaga Nio
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Abstract

The sustainability of a territory is closely related to its resources. Due to climate change, the most precious natural resource, water, has been negatively affected by climatic conditions in terms of quantity and quality. CLIMAT datasets of 1 km2 spatial resolution were used and processed in the ArcGIS environment to generate maps of actual evapotranspiration, water availability, and effective precipitation for the periods of 1961–1990 (1990s), 2011–2040 (2020s), and 2041–2070 (2050s). The product is of paramount importance for the analysis of the actual situation in Europe indicating high water availability in the Alps Range, the Carpathians Mountains, Northern European countries, and the British Islands. On the other hand, low water availability has been evidenced in the Southern and Eastern European areas. For the future period (2050s), the monthly potential evapotranspiration is expected to increase by 30%. The climate models also show an increase in the actual evapotranspiration between past and future periods by 40%. The changes in water availability and effective precipitation between the past (1990s) and future (2050s) indicate decreases of 10%. The most affected areas by climate change are located within the Mediterranean areas, the Iberian Peninsula, and Eastern Europe.

Hydrology and Drought AnalysisHydrology and Watershed Management StudiesClimate variability and modelsactual evapotranspirationwater availabilityeffective rainfall

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