Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model
The JGOFS program and NASA ocean-color satellites have provided a wealth of data that can be used to test and validate models of ocean biogeochemistry. A coupled three-dimensional general circulation, biogeochemical, and radiative model of the global oceans was validated using these in situ data sou...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.143.5125 2023-05-15T13:53:12+02:00 Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model Watson W. Gregg A Paul Ginoux B Paul S. Schopf C The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.5125 http://www.gfdl.noaa.gov/reference/bibliography/2003/wgg0302.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.5125 http://www.gfdl.noaa.gov/reference/bibliography/2003/wgg0302.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.gfdl.noaa.gov/reference/bibliography/2003/wgg0302.pdf text ftciteseerx 2016-01-07T15:02:41Z The JGOFS program and NASA ocean-color satellites have provided a wealth of data that can be used to test and validate models of ocean biogeochemistry. A coupled three-dimensional general circulation, biogeochemical, and radiative model of the global oceans was validated using these in situ data sources and satellite data sets. Biogeochemical processes in the model were determined from the influences of circulation and turbulence dynamics, irradiance availability, and the interactions among four phytoplankton functional groups (diatoms, chlorophytes, cyanobacteria, and coccolithophores) and four nutrients (nitrate, ammonium, silica, and dissolved iron). Annual mean log-transformed dissolved iron concentrations in the model were statistically positively correlated on basin scale with observations ðPo0:05Þ over the eight (out of 12) major oceanographic basins where data were available. The model tended to overestimate in situ observations, except in the Antarctic where a large underestimate occurred. Inadequate scavenging and excessive remineralization and/or regeneration were possible reasons for the overestimation. Basin scale model chlorophyll seasonal distributions were positively correlated with SeaWiFS chlorophyll in each of the 12 oceanographic basins ðPo0:05Þ: The global mean difference was 3.9 % (model higher than SeaWiFS). The four phytoplankton groups were initialized as homogeneous and equal distributions throughout the model Text Antarc* Antarctic Unknown Antarctic The Antarctic |
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The JGOFS program and NASA ocean-color satellites have provided a wealth of data that can be used to test and validate models of ocean biogeochemistry. A coupled three-dimensional general circulation, biogeochemical, and radiative model of the global oceans was validated using these in situ data sources and satellite data sets. Biogeochemical processes in the model were determined from the influences of circulation and turbulence dynamics, irradiance availability, and the interactions among four phytoplankton functional groups (diatoms, chlorophytes, cyanobacteria, and coccolithophores) and four nutrients (nitrate, ammonium, silica, and dissolved iron). Annual mean log-transformed dissolved iron concentrations in the model were statistically positively correlated on basin scale with observations ðPo0:05Þ over the eight (out of 12) major oceanographic basins where data were available. The model tended to overestimate in situ observations, except in the Antarctic where a large underestimate occurred. Inadequate scavenging and excessive remineralization and/or regeneration were possible reasons for the overestimation. Basin scale model chlorophyll seasonal distributions were positively correlated with SeaWiFS chlorophyll in each of the 12 oceanographic basins ðPo0:05Þ: The global mean difference was 3.9 % (model higher than SeaWiFS). The four phytoplankton groups were initialized as homogeneous and equal distributions throughout the model |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Watson W. Gregg A Paul Ginoux B Paul S. Schopf C |
spellingShingle |
Watson W. Gregg A Paul Ginoux B Paul S. Schopf C Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model |
author_facet |
Watson W. Gregg A Paul Ginoux B Paul S. Schopf C |
author_sort |
Watson W. Gregg A |
title |
Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model |
title_short |
Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model |
title_full |
Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model |
title_fullStr |
Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model |
title_full_unstemmed |
Phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model |
title_sort |
phytoplankton and iron: validation of a global three-dimensional ocean biogeochemical model |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.5125 http://www.gfdl.noaa.gov/reference/bibliography/2003/wgg0302.pdf |
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Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
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Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
http://www.gfdl.noaa.gov/reference/bibliography/2003/wgg0302.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.5125 http://www.gfdl.noaa.gov/reference/bibliography/2003/wgg0302.pdf |
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