TY - RPRT TI - Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Normalized Atmospheric Deposition for 2002, Ammonium (NH4) AU - Michael Wieczorek AU - Andrew E. LaMotte PY - 2010 DO - 10.3133/dds49014 UR - https://pubs.usgs.gov/publication/dds49014 ID - dds49014 ER -