Circulation and extreme rainfall conditions in the eastern mediterranean during the last century

Haim Kutiel, Panagiotis Maheras, Sofia Guika

Research output: Contribution to journalArticlepeer-review


Dry and wet years, seasons, and sequences at four eastern Mediterranean stations, Thessaloniki, Athens, Nicosia, and Jerusalem, were identified and compared for circulation types. The definition of dry/wet year or season was done by means of z scores. A year or a season was defined as dry when z ≤ - 0.5 and as extremely dry when z ≤ - 1.5, similarly as wet when z ≥ 0.5 and as extremely wet when z ≥ 1.5. Dry/wet sequences at each station were identified and their timings were compared. Circulation types were defined by means of zonal and meridional indices calculated independently in two regions. Region 1 : Φ = 35°N and 55°N; λ = 10°E and 30°E for Thessaloniki and Athens. Region 2: Φ = 30°N and 50°N; λ = 20°E and 40°E for Nicosia and Jerusalem. Time series of both indices in both regions were calculated and are discussed. Correlations between the z scores of the precipitation with both indices were calculated. Prevailing flows for dry and wet conditions for each of the stations were defined and are discussed.

Original languageEnglish
Pages (from-to)73-92
Number of pages20
JournalInternational Journal of Climatology
Issue number1
StatePublished - 1996


  • Dry and wet sequences
  • Eastern mediterranean
  • Extreme rainfall
  • Meridional index
  • Zonal index

ASJC Scopus subject areas

  • Atmospheric Science


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