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Comparison of parameterized nitric acid rainout rates using a coupled stochastic-photochemical tropospheric modelA major tropospheric loss of soluble species such as nitric acid results from scavenging by water droplets. Several theoretical formulations have been advanced which relate an effective time-independent loss rate for soluble species to statistical properties of precipitation such as the wet fraction and length of a precipitation cycle. In this paper, various 'effective' loss rates that have been proposed are compared with the results of detailed time-dependent model calculations carried out over a seasonal time scale. The model is a stochastic precipitation model coupled to a tropospheric photochemical model. The results of numerous time-dependent seasonal model runs are used to derive numerical values for the nitric acid residence time for several assumed sets of preciptation statistics. These values are then compared with the results obtained by utilizing theoretical 'effective' loss rates in time-independent models.
Document ID
19890050550
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Stewart, Richard W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thompson, Anne M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Owens, Melody A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Herwehe, Jerold A.
(Applied Research Corp. Landover, MD, United States)
Date Acquired
August 14, 2013
Publication Date
April 20, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
89A37921
Distribution Limits
Public
Copyright
Other

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