Filters: Categories: Data (X) > partyWithName: Michael R McHale (X) > partyWithName: U.S. Environmental Protection Agency (X)
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Background Streams and rivers are an important environmental resource and provide water for many human needs. Streamflow is a measure of the volume of water carried by rivers and streams. Changes in streamflow can directly influence the supply of water available for human consumption, irrigation, generating electricity, and other needs. In addition, many plants and animals depend on streamflow for habitat and survival. Streamflow naturally varies over the course of a year. For example, rivers and streams in many parts of the country have their highest (peak) flow when snow melts in the spring. The amount of streamflow is important because high flows can cause erosion and damaging floods, while very low flows...
Categories: Data,
Project;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Climate Change,
Climate Change,
Climate Impacts,
Climate Impacts,
Climate impacts,
The National Network of Reference Watersheds is a collaborative and multipurpose network of minimally disturbed watersheds and monitoring sites. The purpose of this website is to allow users to search the NNRW database of reference watersheds, to identify watersheds of interest, and download watershed information and water quality data. The current scope of the network is limited to freshwater streams. Membership in the network is voluntary and open to individuals, agencies, and institutions interested in participating in monitoring and (or) research in minimally disturbed and pristine watersheds. The NNRW defines reference watersheds as those minimally disturbed by human activity preferably in an area protected...
Summary The Long-Term Monitoring Network (LTM) is funded by the U.S. Environmental Protection Agency (EPA) to monitor trends in surface water quality by nesting a few intensively-monitored stations within a network of more numerous but less frequently sampled stations. The intensively-monitored stations have provided monthly discharge and water-quality data at 6 locations across the country since 1983. Continuous discharge and storm water quality sampling were added to these stations in the late 1980’s. One of the major objectives of the Clean Air Act Amendments (CAAA) was to establish a network of stations for long-term monitoring of surface-water quality and to determine its relation to changes in atmospheric...
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