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Updated: Sep 28, 2025

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
Published on: December 6, 2018
nsink: An R package for flow path nitrogen removal estimation
Jeffrey W Hollister1, Dorothy Q Kellogg2, Qian Lei-Parent3
1U. S. Environmental Protection Agency, Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882.
None:
The nsink package estimates cumulative nitrogen (N) removal along a specified flow path and is based on methodologies outlined in Kellogg et al. (2010). For a user-specified watershed (i.e., hydrologic unit code (HUC)), nsink downloads all required datasets from public datasets in the United States, prepares data for use, summarizes N removal along a flow path and creates several static maps. The results of an nsink analysis may be exported to standard geospatial files for use in other applications.
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