Total monthly inorganic nitrogen deposition within watersheds draining to the Puget Sound and the Strait of Juan de Fuca, Washington, 2005 – 2020

This data release contains monthly deposition estimates of wet and total inorganic nitrogen (reduced and oxidized) for watersheds draining to the Puget Sound and the Strait of Juan de Fuca, Washington. The data, which cover the years 2005 through 2020, were used as input to a seasonal Spatially Referenced Regression On Watershed attributes (SPARROW) total nitrogen model that was used to assess nutrient loadings to Puget Sound and the Strait of Juan de Fuca. The values constitute the monthly nitrogen deposition for each incremental catchment represented in the SPARROW models.