Rain Water: Atmospheric Deposition

Authored by: Zaneta Polkowska

Encyclopedia of Environmental Management

Print publication date:  December  2012
Online publication date:  December  2012

Print ISBN: 9781439829271
eBook ISBN: 9781351235860
Adobe ISBN:

10.1081/E-EEM-120046100

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Abstract

Water is transferred from the atmosphere to the land surface mainly via various forms of atmospheric precipitation; however, the contribution of surface condensation/deposition (e.g., dew, hoar frost, occult precipitation) should not be neglected. Rainwater and liquid deposits (dew, hoar frost, rime) are components of the physical and geographical environment that are easily assimilated and transported. Thus, they are generally a good indicator of the chemical composition of the environment. This entry summarizes the current state of knowledge on the role of atmospheric precipitation and deposition in pollutant transport and distribution. Issues such as routes of transport of atmospheric pollutants to the surface, seasonality and spatial variability of wet precipitation and deposition, and the effect of meteorological parameters and terrain topography on the composition and abundance of the pollutants found in precipitation/deposition samples are discussed.

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