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International Journal of Remote Sensing Volume 29, 2008 - Issue 12
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Remote Sensing Letters

Relating spectral shape to cyanobacterial blooms in the Laurentian Great Lakes

T. T. Wynne I.M. Systems Group Inc., 1305 East–West Highway Silver Spring, MD 20190Correspondence[email protected]
,
R. P. Stumpf NOAA Center for Coastal Monitoring and Assessment, 1305 East–West Highway Silver Spring, MD 20190
,
M. C. Tomlinson NOAA Center for Coastal Monitoring and Assessment, 1305 East–West Highway Silver Spring, MD 20190
,
R. A. Warner NOAA Center for Coastal Monitoring and Assessment, 1305 East–West Highway Silver Spring, MD 20190
,
P. A. Tester NOAA Center for Coastal Fisheries and Habitat Research, 101 Pivers Island Road Beaufort, NC 28516
,
J. Dyble NOAA Great Lakes Environmental Research Laboratory, 2205 Commonwealth Boulevard, Ann Arbor, MI 48105
&
G. L. Fahnenstiel NOAA Great Lakes Environmental Research Laboratory, Lake Michigan Field Station, 1431 Beach Street, Muskegon, MI 49441
 show all
Pages 3665-3672 | Received 15 Aug 2007, Accepted 06 Feb 2008, Published online: 16 May 2008
 
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Abstract

A change in the spectral shape at 681 nm is used to distinguish blooms of cyanobacteria from blooms of other phytoplankton via MERIS satellite sensor imagery. During large cyanobacterial blooms, the spectral shape around 681 nm is not a positive quantity as scattering due to cyanobacteria overwhelms the fluorescence signal, thus creating a negative spectral shape. This relationship is consistent in both remotely sensed and in situ data.

Acknowledgements

MERIS imagery was provided by the European Space Agency (Category‐1 Proposal C1P.3975). Funding was provided by the NOAA Center of Excellence for Great Lakes and Human Health. The authors would like to thank Phillip Keegstra and Sathyadev Ramachandran for assistance in processing data.

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