期刊
JOURNAL OF GREAT LAKES RESEARCH
卷 39, 期 -, 页码 100-107出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jglr.2013.04.005
关键词
Remote sensing; MERIS; Aquatic colour; Great lakes; Water quality; Algal blooms
资金
- Canadian Space Agency's Government Related Initiative Program
- Environment Canada's Lake Winnipeg Basin Initiative
Satellite remote sensing methods adopting wavelengths in the red and near infra-red have been shown to be superior to the standard blue to green ratio based approaches in the detection of algal blooms under turbid, eutrophic conditions. Here, the MERIS Maximum Chlorophyll Index (MCI) has been explored as a tool for monitoring algal blooms in North America's inland waters where waters range from optically complex, turbid, eutrophic conditions, to low chlorophyll and oligotrophic conditions. Assessment of the MERIS MCI product is made for intense blooms of cyanobacteria in Lake of the Woods, algal blooms in turbid waters of Lake Erie, and low chlorophyll conditions in Lake Ontario. The MCI product is shown to be a versatile tool in monitoring intense surficial algal blooms with chlorophyll concentrations in the 10-300 mg m(-3) range, while limited in its application to low-biomass conditions as observed in Lake Ontario. Wavelength shifts in the position of the MCI peak for different chlorophyll concentration ranges, as well as variations in the inherent optical properties of water colouring constituents, are anticipated to account for regional variations in MCI-chlorophyll relationships and potentially hinder a universally applicable quantitative MCI product. Crown Copyright (C) 2013 Published by Elsevier B.V. on behalf of International Association for Great Lakes Research. All rights reserved.
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