An increase of early rains in southern Israel following land-use change?

Rains at the onset of the October-April rainy season in southern Israel have steeply increased in the last 25 years relative to the previous 20 years, and are accompanied by an appreciable general increase of rainy-season rainfall. This increase in precipitation is specifically attributable to an in...

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Veröffentlicht in:Boundary-layer meteorology 1990-12, Vol.53 (4), p.333-351
Hauptverfasser: Otterman, J., Starr, D. O'C., Manes, A., Rubin, S., Alpert, P.
Format: Artikel
Sprache:eng
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Zusammenfassung:Rains at the onset of the October-April rainy season in southern Israel have steeply increased in the last 25 years relative to the previous 20 years, and are accompanied by an appreciable general increase of rainy-season rainfall. This increase in precipitation is specifically attributable to an intensification of the convection and advection processes due to afforestation and increased cultivation-induced enhancement of the daytime sensible heat flux from the generally dry surface; the enhancement proceeds from both the reduced surface albedo and the reduced soil heat flux in October, when insolation is strong. Greater daytime convection can lead to penetration of inversions capping the planetary boundary layer, while strengthened advection can furnish moist air from the Mediterranean.
ISSN:0006-8314
1573-1472
DOI:10.1007/BF02186093