A simple model for potential dewfall in an arid region

A.F.G. Jacobs, B.G. Heusinkveld, S.M. Berkowicz

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70 Citations (Scopus)


It is not always easy to know, post-facto, whether both dewfall and fog may have occurred over a given evening period. Instrumentation limitations make it difficult to quantify dew deposition since they rely on artificial sensing surfaces that are either visually examined on a daily basis or recorded. In arid to Mediterranean regions, both dew and fog can play significant ecological roles as suppliers of moisture. Long-term observation records of dew and fog in such regions tend to be limited, however, due partly to a lack of interest and limited distribution of well-instrumented meteorological stations. Simple meteorological criteria are suggested here to calculate potential dewfall and to indicate whether fog was likely to have occurred over a given evening. A field campaign was carried out in the NW Negev desert, Israel, in September and October 1997, to collect meteorological data and carry out dewfall measurements
Original languageEnglish
Pages (from-to)285-295
JournalAtmospheric Research
Issue number39539
Publication statusPublished - 2002


  • negev desert
  • surface-temperature
  • dew
  • moisture
  • soil
  • fog
  • evaporation
  • ecosystem
  • canopy
  • israel


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