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Article Dans Une Revue Atmospheric Research Année : 2017

Urban dew and rain in Paris, France: Occurrence and physico-chemical characteristics

Résumé

This paper summarizes one year (April 2011 to March 2012) measurements on planar condensing surfaces of dew and rain events and related physico-chemical characteristics in the urban environment of Paris (city center). Yearly collected water was 3.48 mm for dew (63 events) and 593 mm for rain (146 events). The latter value compares well with rain data (547 mm and 107 events) collected within 12 km at Paris-Orly airport. An estimation of dew yield based on meteo data gives 2.35 mm and 74 events, to be compared with 17.11 mm and 196 events at Paris-Orly. These differences highlight the large reduction in dew events and dew yields in an urban area as compared to a close rural-like area. This reduction is not due to a sky view reduction but to heat island that increases air temperature and decreases relative humidity.
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Dates et versions

hal-01494435 , version 1 (23-03-2017)

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Daniel Beysens, A. Mongruel, K. Acker. Urban dew and rain in Paris, France: Occurrence and physico-chemical characteristics. Atmospheric Research, 2017, 189, pp.152 - 161. ⟨10.1016/j.atmosres.2017.01.013⟩. ⟨hal-01494435⟩
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