Other useful sections relevant to air transport management include links to aviation organisations and aviation discussion lists, meteorological bureaux worldwide, and airline and city codes. Aerospace-related subjects include aircraft specifications and links to aviation manufacturers and suppliers. The site asks visitors to register, but many of the services are available without registration. The site provides two major resources - a gallery of maps which illustrate the spatial relationships between emissions and the environment, and a download facility. This allows you to download GIS datasets to be uploaded into GIS software, or a spreadsheet.
Categories covered include air, water, land, deposition and emissions.
The data covers the North American continent. Useful sources available from this site include access to relevant datasets, as well as bibliographic descriptions of CMDL publications. The 1998 Earth Science Enterprise Applications Fact Book provides details of eleven applications that NASA are using to monitor and analyse environmental change. This site provides the full text of a report published by the National Academy Press in 2000. The report was produced by the US Commission on Physical Sciences, Mathematics, and Applications.