Concept information
Preferred term
NADP
Definition
- The National Atmospheric Deposition Program (NADP) was started in 1977 under the State Agricultural Experiment Stations (SAES) to address the problem of atmospheric deposition and its effect on agricultural crops, forests, rangelands, surface waters and other natural and cultural resources. The first monitoring sites of the NADP precipitation chemistry network was started in 1978 to provide information about geographical patterns and temporal trends in the deposition of acidic chemicals and nutrients. The NADP was initially organized as Regional Project NC-141 by the North Central Region of the SAES. The NADP was endorsed by all four regions in 1982. when it became Interregional Project IR-7. Ten years later IR-7 was reclassified as a National Research Support Project, NRSP-3. In 1982, the National Acid Precipitation Assessment Program (NAPAP) was established. The NADP assumed responsibility for coordinating the National Trends Network (NTN) of NAPAP since both the NADP and NTN had common siting criteria and operational procedures, and shared a common analytical laboratory. In 1983, the network became the NADP/NTN. Seven federal agencies support NADP/NTN research and monitoring under NAPAP: Department of Agriculture (USDA) [Agricultural Research Service (USDA/ARS), Cooperative Sate Research, Education and Extension Service (USDA/CSREES), and the U.S. Forest Service (USFS)]; Department of Commerce (DOC) [National Oceanic and Atmospheric Administration (NOAA)]; Department of Energy (DOE) [Argonne National Laboratory (ANL), Los Alamos National Laboratory (LANL), and Oak Ridge National Laboratory (ORNL)]; Department of Interior (DOI) [Bureau of Land Management (BLM), USGS Biological Resources Division (BRD) (formally the National Biological Service (NBS)), National Park Service (NPS), U.S. Fish and Wildlife Service (USFWS), U.S. Geological Survey (USGS), and the USGS Branch of Technical Development and Quality Systems]; Environmental Protection Agency (EP); National Aeronautics and Space Administration (NASA) and the National Science Foundation (NSF). Additional support is provided by various other federal agencies, state agencies, universities, public utilities and industry. There are curently 200 sites in the network. The primary objectives of the NADP/NTN network are the determination of spatial patterns and temporal trends in chemical deposition on terrestrial ecosystems. The Central Analytical Laboratory (CAL), operated by the Illinois State Water Survey is responsible for the chemical analysis and related support services for the entire network. The NADP/NTN Coordination Office was transferred to the Illinois State Water Survey in 1998 from Colorado State University. The NADP/NTN also has two subnetworks: the Atmospheric Integrated Research Monitoring Network (AIRMoN) - designed to characterize long-term trends in the chemical climate of the U.S.; and the Mercury Deposition Network (MDN) - designed to develop a regional database on the weekly concentrations of total mercury in precipitation and the seasonal and annual flux of total mercury in wet deposition. Data from the NADP/NTN is available on-line at: "http://nadp.sws.uiuc.edu/" Reference: National Atmospheric Deposition Program. 1993. 'NADP/NTN Annual Data Summary. Precipitation Chemistry in the United States. 1992', Natural Resource Ecology Laboratory, Colordao State University, Fort Collins, CO. 480 pp. Lynch, J.A., V.C. Bowersox, and C. Simmons. 1995. "Precipitation Chemistry Trends in the United States: 1980-1993. Summary Report", NADP, Natural resources Ecology Laboratory, Colorado State University, Fort Collins, CO. 103 pp. Data Availability: The NADP/NTN data are available as weekly, annual, seasonal, monthly summaries of precipitation amounts, ion concentrations and depositions in hardcopy or electronic form from NREL. (en)
Broader concept
- M - O (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/b27cff0b-386f-4ed8-914e-3d90ee11caed
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