Document Detail

Towards an assessment of the influence of climate on wet acidic deposition in Europe.
MedLine Citation:
PMID:  15092024     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The EMEP precipitation composition network is used to examine relationships between non-marine SO4(2-), NO3-, NH4+, H+ concentrations and precipitation amount and a local zonal pressure index (an index of the atmospheric circulation). The pattern of the relationships changes across Europe with the zonal pressure gradient explaining more of the variance in ion concentrations in the west, and precipitation amount explaining relatively more of the variance in the east. There is some predictive capability for precipitation composition in the zonal pressure gradient for restricted regions in Europe; R2 values are up to 40% on a daily basis but in some seasons/months attain >60%. The zonal pressure gradient is an index which appears to include pertinent information on transport and wet removal. Preliminary analysis indicates that this approach can be useful in assessing the contributions of changing atmospheric circulation to time-trends of wet acidic deposition in an area stretching from the UK over the North Sea to Denmark. The zonal pressure gradient is known to have varied on time-scales of decades, and the simple index may be one appropriate approach to assessing future deposition patterns from future climate projections.
T D Davies; C E Pierce; H J Robinson; S R Dorling
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  75     ISSN:  0269-7491     ISO Abbreviation:  Environ. Pollut.     Publication Date:  1992  
Date Detail:
Created Date:  2004-04-19     Completed Date:  2005-01-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  111-9     Citation Subset:  -    
School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK.
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