Norman E. Spahr

The quality of our nation's waters: Nutrients in the nation's streams and groundwater, 1992-2004

Neil M. Dubrovsky, Karen R. Burow, Gregory M. Clark et al. · U.S. Geological Survey circular/U.S. Geological Survey Circular · 2010 · 414 citations · Full text

Processes Controlling the Chemistry of Two Snowmelt‐Dominated Streams in the Rocky Mountains

Donald H. Campbell, David W. Clow, George P. Ingersoll et al. · Water Resources Research · 1995 · 192 citations

Engineering, Geomorphology, Chemical Composition +19

Vulnerability of Streams to Legacy Nitrate Sources

Anthony J. Tesoriero, John H. Duff, David A. Saad et al. · Environmental Science & Technology · 2013 · 159 citations

Identifying Pathways and Processes Affecting Nitrate and Orthophosphate Inputs to Streams in Agricultural Watersheds

Anthony J. Tesoriero, John H. Duff, David M. Wolock et al. · Journal of Environmental Quality · 2009 · 100 citations · Full text

Groundwater Quality, Engineering, Hydrogeologic System +16

Efficacy of algal metrics for assessing nutrient and organic enrichment in flowing waters

Stephen D. Porter, David K. Mueller, Norman E. Spahr et al. · Freshwater Biology · 2008 · 97 citations

Biogeochemistry, Eutrophication, Engineering +9