Introduction to Visibility

This PDF from the Cooperative Institute for Research in the Atmosphere (CIRA) and National Park Service is a comprehensive Pictorial Guide to Visibility beginning with the fundamental principles of visibility, visibility impairment, and causes of regional haze, to particle species, aerosol concentration and trends.

Download Introduction to Visibility PDF (9.7mb)Download may take up to 30min on a 56k modem. To view this document, you will need the Adobe Acrobat Reader™