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Assessment of nutrient distributions in Lake Champlain using satellite remote sensing

TitleAssessment of nutrient distributions in Lake Champlain using satellite remote sensing
Publication TypeJournal Article
Year of Publication2014
AuthorsIsenstein EM, Park M-H
JournalJournal of Environmental Sciences
Volume26
Issue9
Start Page1831
Pagination1831-1836
Date Published09/2014
KeywordsMonitoring, Nutrients, Phosphorus, remote sensing
Abstract

The introduction of nutrients to lakes causing eutrophic conditions is a major problem around the world. Proper monitoring and modeling are important to effectively manage eutrophication in lake waters. The goal is to develop remote sensing models for nutrients, total phosphorus and total nitrogen, in Lake Champlain. The remote sensing models were created using multivariate linear regression with the unique band combinations of Landsat Enhanced Thematic Mapper Plus (ETM+) imagery based on the empirical relationship with the field observations. The resulting models successfully showed nutrient distributions in the most eutrophic part of Lake Champlain, Missisquoi Bay, with reasonable adjusted coefficient of determination values (R(2)=0.81 and 0.75 for total phosphorus and total nitrogen, respectively). The results show the feasibility and the utility of satellite imagery to detect spatial distributions of lake water quality constituents, which can be used to better understand nutrient distributions in Lake Champlain. This approach can be applicable to other lakes experiencing eutrophication assisting decision making when implementing Best Management Practices and other mitigation techniques to lakes.

DOI10.1016/j.jes.2014.06.019