Author(s): Hasan Huseyin Yildirim; Ali Ercan
Linked Author(s):
Keywords: No Keywords
Abstract: Aridification is among the most severe impacts of climate change, with the Middle East being particularly vulnerable due to its already arid climate. The aridity index (AI), defined as the ratio of precipitation (P) to potential evapotranspiration (PET), is a key indicator of aridity. In this study, temporal and spatial variations in the AI across the Middle East were analysed. The aridity index was computed at a spatial resolution of 0.1° using the ERA5-Land reanalysis dataset. Aridity index maps were generated for three distinct periods between 1950 and 2024, allowing for a detailed assessment of long-term trends. Based on the aridity index, land classification was conducted in accordance with the UNEP criteria. In addition to spatial analyses, country-level statistical summaries were provided. These findings highlight the increasing severity of aridification across the region and offer valuable insights for policymakers concerned with climate resilience and agricultural planning.
Year: 2026