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Climatic trends in Israel 1970–2002: warmer and increasing aridity inland

Abstract

Climatic trends in Israel during the period 1970–2002 were studied in detail on the basis of three parameters: average annual temperature, annual precipitation and the annual aridity (humidity) index P/PET (P = Precipitation; PET = Potential Evapotranspiration). Significant warming is evident in all 12 evaluated meteorological stations, situated in different parts of Israel. Along the Mediterranean coast, the average annual precipitation and P/PET values remained more or less at the same level. However, more inland, both eastward and southward, precipitation and P/PET trends are declining, indicating increased aridity. Eilat, Beer Sheva and Sedom Pans, situated in the desert, showed the most significant increase in aridity among the 12 meteorological stations we investigated. The relationship between changes in temperature and precipitation showed a negative correlation in all cases except for Eilat, the southernmost and driest part of Israel. The negative correlations for Negba, Kefar Blum, Har Kena’an, Beer Sheva and Sedom Pans are statistically significant. In conclusion, the climate in Israel has become more arid in most regions, except for the coastal plain.

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Correspondence to Hendrik J. Bruins.

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Kafle, H.K., Bruins, H.J. Climatic trends in Israel 1970–2002: warmer and increasing aridity inland. Climatic Change 96, 63–77 (2009). https://doi.org/10.1007/s10584-009-9578-2

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Keywords

  • Meteorological Station
  • Coastal Plain
  • Average Annual Precipitation
  • Mediterranean Coast
  • Climatic Trend