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 · 419 citations · Full text

Natural Resources, Environmental Sciences, Hydrology +17

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

Natural Resources, Earth Sciences, Hydrology +17

Vulnerability of Streams to Legacy Nitrate Sources

Anthony J. Tesoriero, John H. Duff, David A. Saad et al. · Environmental Science & Technology · 2013 · 165 citations

Natural Resources, Earth Sciences, Hydrology +17

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 · 105 citations · Full text

Agriculture, Earth Sciences, Hydrology +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

Life Sciences, Ecology, Environmental Sciences +17