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Use of flow-normalization to evaluate nutrient concentration and flux changes in Lake Champlain tributaries, 1990–2009

Dates

Year
2012

Citation

Medalie, Laura, Hirsch, Robert M, and Archfield, Stacey A, 2012, Use of flow-normalization to evaluate nutrient concentration and flux changes in Lake Champlain tributaries, 1990–2009: Journal of Great Lakes Research, v. 38, Supple, iss. 0, p. 58-67.

Summary

The U.S. Geological Survey evaluated 20 years of total phosphorus (P) and total nitrogen (N) concentration data for 18 Lake Champlain tributaries using a new statistical method based on weighted regressions to estimate daily concentration and flux histories based on discharge, season, and trend as explanatory variables. The use of all the streamflow discharge values for a given date in the record, in a process called “flow-normalization”, removed the year-to-year variation due to streamflow and generated a smooth time series from which trends were calculated. This approach to data analysis can be of great value to evaluations of the success of restoration efforts because it filters out the large random fluctuations in the flux that [...]

Contacts

Communities

  • USGS National Research Program

Tags

Provenance

Added to ScienceBase on Thu Apr 18 14:57:04 MDT 2013 by processing file <b>Hydrologic Variability and Trends.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216b8e4b04b508bfd3359">https://www.sciencebase.gov/catalog/item/504216b8e4b04b508bfd3359</a>

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1016/j.jglr.2011.10.002

Citation Extension

citationTypeJournal Article
journalJournal of Great Lakes Research
parts
typePages
value58-67
typeVolume
value38, Supple
typeIssue
value0

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