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Calculated quantum yield of photosynthesis of phytoplankton in the Marine Light-Mixed Layers (59 deg N, 21 deg W)The quantum yield of photosynthesis (mol C/mol photons) was calculated at six depths for the waters of the Marine Light-Mixed Layer (MLML) cruise of May 1991. As there were photosynthetically available radiation (PAR) but no spectral irradiance measurements for the primary production incubations, three ways are presented here for the calculation of the absorbed photons (AP) by phytoplankton for the purpose of calculating phi. The first is based on a simple, nonspectral model; the second is based on a nonlinear regression using measured PAR values with depth; and the third is derived through remote sensing measurements. We show that the results of phi calculated using the nonlinear regreesion method and those using remote sensing are in good agreement with each other, and are consistent with the reported values of other studies. In deep waters, however, the simple nonspectral model may cause quantum yield values much higher than theoretically possible.
Document ID
19950052506
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Carder, K. L.
(University of South Florida, St. Petersburg, FL United States)
Lee, Z. P.
(University of South Florida, St. Petersburg, FL United States)
Marra, John
(Lamont-Doherty Earth Observatory, Columbia Univ. Palisades, NY, United States)
Steward, R. G.
(University of South Florida, St. Petersburg, FL United States)
Perry, M. J.
(Washington Univ. Seattle, WA, United States)
Date Acquired
August 16, 2013
Publication Date
April 15, 1995
Publication Information
Publication: Journal of Geophysical Research
Volume: 100
Issue: C4
ISSN: 0148-0227
Subject Category
Oceanography
Accession Number
95A84105
Funding Number(s)
CONTRACT_GRANT: N00014-90-J-1091
CONTRACT_GRANT: N00014-89-J-1091
CONTRACT_GRANT: NAGW-465
CONTRACT_GRANT: N00014-89-C-1150
Distribution Limits
Public
Copyright
Other

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