Physics – Optics
Scientific paper
May 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.1465m&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 10, p. 1465-1468
Physics
Optics
40
Oceanography: General: Arctic And Antarctic Oceanography, Oceanography: General: Remote Sensing And Electromagnetic Processes, Oceanography: Physical: Ocean Optics
Scientific paper
SeaWiFS estimates of surface chlorophyll concentrations are reported for the region of the U.S. JGOFS study in the Southern Ocean (~ 170°W, 60°S). Elevated chlorophyll was observed at the Southern Ocean fronts, near the edge of the seasonal ice sheet, and above the Pacific-Antarctic Ridge. The elevated chlorophyll levels associated with the Pacific-Antarctic Ridge are surprising since even the crest of the ridge is at depths >2000 m. This elevated phytoplankton biomass is likely the result of mesoscale physical-biological interactions where the Antarctic Circumpolar Current (ACC) encounters the ridge. Four cruises surveyed this region between October 1997 and March 1998, as part of the U.S. JGOFS. Satellite-derived chlorophyll concentrations were compared with in situ extracted chlorophyll measurements from these cruises. There was good agreement (r2 of 0.72, from a linear regression of shipboard vs. satellite chlorophyll), although SeaWiFS underestimated chlorophyll concentrations relative to the ship data.
Abbott Mark R.
Barber Richard T.
Coale Kenneth H.
Cowles Timothy J.
Gardner Wilford D.
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