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Federal
Natural Phosphorus Sources for the Pacific Northwest
Department of the Interior —
Phosphorus is a naturally occurring element found in all rocks; the amount varies by the type of rock. The amount of phosphorus in sediments is expected to be... -
Federal
Watershed Potential to Contribute Phosphorus from Geologic Materials to Receiving Streams, Conterminous United States
Department of the Interior —
This spatial data layer is a cell-based Raster model characterizing the contribution of phosphorus (P) to streams from weathering and erosion of surficial geologic... -
Federal
Input and predictions from a suspended-sediment SPARROW model CBSS_V2 in the Chesapeake Bay watershed. U.S. Geological Survey data release
Department of the Interior —
These data represent both inputs for and estimates from a medium-resolution (1:100,000 scale) NHDPlus SPAtially Referenced Regression on Watershed attributes... -
Federal
Red Alder Basal Area, by Stream Reach, for the Pacific Northwest
Department of the Interior —
Red alder (Alnus rubra) are a common component of forests in Western Oregon and Washington. This file provides an estimate of red alder basal area in western Oregon...