New Web site provides maps of watersheds

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WASHINGTON — For the first time, information collected over the past 40 years from instruments on large watersheds across the country is available online, thanks to an Agricultural Research Service (ARS) Web site.

About the site

The Web site, called STEWARDS (Sustaining the Earth’s Watersheds, Agricultural Research Data System), has interactive maps of watersheds. The site allows users to see the topography of the watersheds and the instrument locations, as well as download data.

Jean Steiner, director of the ARS Grazinglands Research Laboratory in El Reno, Okla., came up with the idea of organizing data from watersheds nationwide into one site with a standardized format.

Purpose

One key purpose is to make the information available to people involved in the Conservation Effects Assessment Project (CEAP) and to expand the usefulness of the information gathered at each watershed for nationwide analyses.

The project began in 2003 as a multi-agency effort to quantify the environmental benefits of conservation practices used by private landowners participating in selected USDA conservation programs.

Topics

But the data are also crucial to others doing hydrological analyses, and to the public, especially to people living in these watersheds.

The data include information on pesticides, nitrogen and phosphorous in streams, rivers, lakes and drinking water reservoirs. The Web site also has data on daily stream discharge levels, air and soil temperature and other weather data.

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