Observations of a Hurricane Katrina-induced phytoplankton bloom in the Gulf of Mexico

Details Observations of a Hurricane Katrina-induced phytoplankton bloom in the Gulf of Mexico Observations of a Hurricane Katrina-induced phytoplankton bloom in the Gulf of Mexico

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3411607s&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 11, CiteID L11607

Mathematics

Logic

11

Global Change: Oceans (1616, 3305, 4215, 4513), Global Change: Remote Sensing (1855), Oceanography: General: Upwelling And Convergences (4964), Oceanography: Biological And Chemical: Phytoplankton, Oceanography: Physical: Upper Ocean And Mixed Layer Processes

Scientific paper

A combined dataset of ocean surface winds from the National Center for Environmental Prediction (NCEP), the sea surface temperature (SST) from the Advanced Microwave Scanning Radiometer EOS (AMSR-E) on Aqua, and ocean color products from the Moderate Resolution Imaging Spectroradiometer (MODIS) on Aqua are used to analyze physical, optical, and biological processes after Hurricane Katrina in the August of 2005. The atmospheric correction algorithm using shortwave infrared (SWIR) bands is employed for the MODIS ocean color data processing. A notable phytoplankton bloom centered at (24.4°N, 84°W) in the Gulf of Mexico is observed four days after Katrina's passing. There was no evidence of sediment re-suspension and transport from nearby locations into the bloom region. The phytoplankton bloom is attributed to the enhanced nutrient supply brought up by the wind-driven upwelling and vertical mixing, and is identified as the only source of observed changes in ocean optical and bio-optical properties.

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