IMPROVE Annual Site Reports
In 1987, IMPROVE’s first aerosol samplers — designed at UC Davis — were installed at the program’s first 20 sites including Acadia, Big Bend, Hawaii Volcanoes, and Yellowstone National Parks. Since then, over 100 more sites now host IMPROVE samplers.
With the program’s demonstrative success in visibility monitoring and steady advances in instrumentation and data analysis, it has been joined by a number of agencies and groups not affiliated with Class 1 areas. Of the approximately 150 currently active IMPROVE sites, about 60 are hosted by such groups, while the remainder are associated with Class 1 areas.
Please find the current IMPROVE Site Reports hosted externally at the IMPROVE Visibility website (see link to archived reports at the end of this page):
IMPROVE Field Site Map
