The Net Anthropogenic Nitrogen Inputs (NANI) and Phosphorus Inputs (NAPI) Toolboxes
Data
National Hydrography Dataset website
CMAQ Watershed Deposition Tool (WDT); N deposition estimates
Agricultural Census (1987, 1992, and 1997; Mann Library at Cornell University)
Agricultural Census (2002 and 2007; Desktop Data Query Tool)
County-level fertilizer data (Ruddy et al., 2006)
US county delineations (ARCGis datafiles, zipped format)
US watershed delineations used for comparison of NANI estimates in Hong et al, 2010 (ARCGis datafiles, zipped format)
Projects
Coastal Hypoxia Research Program (CHRP)