What’s in Our Nation’s Rain?

What’s in Our Nation’s Rain?



What's in Our Nation's Rain?  The NADP and How We are Improving Environmental Monitoring.

The National Atmospheric Deposition Program (NADP) has been monitoring precipitation chemistry since 1978, and is continuing to grow today.  The NADP was initiated to address growing concerns over atmospheric deposition and its impacts on crops, rangelands, forests, surface waters, and other natural and cultural resources.  The NADP consists of five independent environmental monitoring networks spanning the continental United States, as well as initiatives in Alaska, Puerto Rico, Canada, Argentina, and Taiwan.  The largest and longest running network, the National Trends Network (NTN) analyzes weekly rainwater samples for a wide range of chemical variables including  pH, conductivity, Ca2+, Mg2+, K+, Na+, NH4+, PO43-, NO3, Cl-, SO42- and Br-.  In addition to the NTN, other NADP networks such as the Mercury Deposition Network (MDN), and the Ammonia Monitoring Network (AMoN) are respectively committed to monitoring atmospheric mercury (Hg) and ambient ammonia gas (NH3).  Through these initiatives, the NADP has been able to consistently provide stakeholders crucial information on spatial and temporal trends in atmospheric deposition.


Brian Kerschner graduated from Millersville University of Pennsylvania with his Bachelors of Science in Meteorology in 2009.  He went on to pursue a graduate degree at the University of Delaware, where he graduated in 2011 with his Masters of Science in Geography, as well as a certificate in Geographic Information Systems.  Brian is currently employed at the Illinois State Water Survey in Champaign, IL, where he works for the National Atmospheric Deposition Program's (NADP) Central Analytical Laboratory (CAL).  Brian works as an Assistant Data Manager at the CAL, and is in charge of final data review for three of NADP's largest networks.

5:45pm reception (with refreshments) followed by the seminar at 6:00 in caputo 210.