Rainfall captured in backyard rain gauges will be logged on an Internet-based weather network developed in Fort Collins, Colo. by CoCoRaHS, the Community Collaborative Rain, Hail, and Snow Network.
California is the 36th state to join the network which has more than 11,000 volunteers currently.
The nonprofit CoCoRaHS network is sponsored in part by the National Oceanic and Atmospheric Administration, the National Weather Service and other individual contributors and organizations, including Cooperative Extension.
The long-term goal of CoCoRaHS is ultimately to recruit one volunteer observer per square mile in urban areas and one volunteer observer per 36 square miles in rural areas for all 50 states.
“There is no substitute for accurate, local measurement of the weather,” said Anderson. “This data will help not only during short time-scale events like storms and floods, but also serve as an added tool for recording and analyzing climate change.”
Home-based and amateur rain spotters take daily rainfall measurements and report them to the CoCoRaHS Web site, www.cocorahs.org. Each volunteer is asked to read the rain gauge each day at the same time and upload the measurement to the website. The result is more precise information about where rain, snow and hail falls and in what amount.
Anyone with an interest in weather and access to the Internet can sign up. The only equipment needed is a cylindrical rain gauge available from the network for $23 plus shipping. Simple training is available at www.cocorahs.org.
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