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Canadian National Atmospheric Chemistry (NAtChem) Database and Analysis System
链接地址: http://www.msc-smc.ec.gc.ca/natchem/index_e.html
内容简介:

The purpose of the NAtChem database is to enhance atmospheric research through the archival and analysis of North American air and precipitation chemistry data.  Such research includes investigations into the chemical nature of the atmosphere, atmospheric processes, spatial and temporal patterns, source-receptor relationships and long range transport of air pollutants.

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