CoCoRaHS: The Community Collaborative Rain, Hail and Snow Network
The Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) involves thousands of people of all ages in the observation and study of weather, climate and water resources. In CoCoRaHS, citizens of all ages help measure and report rain, hail and snow from their own homes, schools and businesses. These data are then efficiently collected via the internet, archived in a national database, and made immediately available to participants, scientists and the general public showing the fascinating patterns of precipitation from each passing storm (see http://www.cocorahs.org). The measurement of precipitation and the patterns, variations and impacts that result, open the door to creative study of our environment. It is the "lowest common denominator" of hydroclimatic exploration. In this project, data from the CoCoRaHS citizen science network will be shared with and utilized by NOAA partners to help monitor drought, to help detect local severe storms, to alert local authorities to developing flash flood situations, to provide "ground truth" for NOAA and NASA remote sensing technologies, and to provide verification for both local and national weather and climate forecast products.