Water-quality and streamflow datasets used for estimating loads considered for use in the 2002 Midcontinent nutrient SPARROW models, United States and Canada, 1970-2012

The United States Geological Survey’s (USGS) SPAtially Referenced Regressions On Watershed attributes (SPARROW) model was developed to aid in the interpretation of...美国地质调查局（United States Geological Survey，简称USGS）开发的流域属性空间参考回归（SPAtially Referenced Regressions On Watershed attributes，缩写SPARROW）模型，旨在辅助对……进行解释。