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The chemistry of a mesoscale rainband
Author(s) -
Hegg Dean A.,
Rutledge Steven A.,
Hobbs Peter V.,
Barth Mary C.,
Hertzman Owen
Publication year - 1989
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49711548806
Subject(s) - rainband , mesoscale meteorology , meteorology , precipitation , trace (psycholinguistics) , environmental science , cloud physics , deposition (geology) , climatology , geology , cloud computing , geography , computer science , paleontology , philosophy , linguistics , sediment , operating system
A diagnostic modelling study is presented of the chemistry of a cold‐frontal rainband observed on the mid‐Atlantic coast of the United States. Both the chemical and physical data sets were sufficient to allow realistic evaluation of the 2‐D model employed. Utilizing the model, assessment is made of the importance of in‐cloud chemical processes to the deposition on the ground of selected trace chemicals; in‐cloud sulphate production was found to be of great importance. The effects of the rainband on the vertical transport of trace chemicals, and the effects of precipitation‐formation mechanisms on chemical scavenging, are also discussed.