Contact Information


From the NADP history: In 1977, U.S. State Agricultural Experiment Stations (SAES) organized a project, later titled the National Atmospheric Deposition Program (NADP), to measure atmospheric deposition and study its effects on the environment. Sites in the NADP precipitation chemistry network began operations in 1978 with the goal of providing data on the amounts, trends, and geographic distributions of acids, nutrients, and base cations in precipitation. The network grew rapidly in the early 1980s. Much of this expansion was funded by the National Acid Precipitation Assessment Program (NAPAP), established in 1981 to improve understanding of the causes and effects of acidic precipitation. Reflecting the federal NAPAP role in the NADP, the network name was changed to NADP National Trends Network (NTN). Today, the NADP is SAES National Research Support Project - 3. The NTN network currently has 250 sites. For more information about NADP's early history, please see Thirty Years Down

List of Projects

Atmospheric Integrated Research Monitoring Network

  • Project Page
  • Project Start Date: 1993-01-01
  • Project End Date: 2013-05-30