A comparison of global estimates of marine primary production from ocean color

@article{citeulike:2425925, abstract = {The third primary production algorithm round robin (PPARR3) compares output from 24 models that estimate depth-integrated primary production from satellite measurements of ocean color, as well as seven general circulation models (GCMs) coupled with ecosystem or biogeochemical models. Here we compare the global primary production fields corresponding to eight months of 1998 and 1999 as estimated from common input fields of photosynthetically-available radiation (PAR), sea-surface temperature (SST), mixed-layer depth, and chlorophyll concentration. We also quantify the sensitivity of the ocean-color-based models to perturbations in their input variables. The pair-wise correlation between ocean-color models was used to cluster them into groups or related output, which reflect the regions and environmental conditions under which they respond differently. The groups do not follow model complexity with regards to wavelength or depth dependence, though they are related to the manner in which temperature is used to parameterize photosynthesis. Global average PP varies by a factor of two between models. The models diverged the most for the Southern Ocean, SST under , and chlorophyll concentration exceeding 1 mg Chl m-3. Based on the conditions under which the model results diverge most, we conclude that current ocean-color-based models are challenged by high-nutrient low-chlorophyll conditions, and extreme temperatures or chlorophyll concentrations. The GCM-based models predict comparable primary production to those based on ocean color: they estimate higher values in the Southern Ocean, at low SST, and in the equatorial band, while they estimate lower values in eutrophic regions (probably because the area of high chlorophyll concentrations is smaller in the GCMs). Further progress in primary production modeling requires improved understanding of the effect of temperature on photosynthesis and better parameterization of the maximum photosynthetic rate.}, author = {Carr, Mary-Elena and Friedrichs, Marjorie A. and Schmeltz, Marjorie and Noguchi and Antoine, David and Arrigo, Kevin R. and Asanuma, Ichio and Aumont, Olivier and Barber, Richard and Behrenfeld, Michael and Bidigare, Robert and Buitenhuis, Erik T. and Campbell, Janet and Ciotti, Aurea and Dierssen, Heidi and Dowell, Mark and Dunne, John and Esaias, Wayne and Gentili, Bernard and Gregg, Watson and Groom, Steve and Hoepffner, Nicolas and Ishizaka, Joji and Kameda, Takahiko and Le Quere, Corinne and Lohrenz, Steven and Marra, John and Melin, Frederic and Moore, Keith and Morel, Andre and Reddy, Tasha E. and Ryan, John and Scardi, Michele and Smyth, Tim and Turpie, Kevin and Tilstone, Gavin and Waters, Kirk and Yamanaka, Yasuhiro }, booktitle = {The US JGOFS Synthesis and Modeling Project: Phase III}, citeulike-article-id = {2425925}, doi = {http://dx.doi.org/10.1016/j.dsr2.2006.01.028}, journal = {Deep Sea Research Part II: Topical Studies in Oceanography}, keywords = {oceancolor, phytoplankton}, month = {}, number = {5-7}, pages = {741--770}, posted-at = {2008-02-25 16:07:40}, priority = {2}, title = {A comparison of global estimates of marine primary production from ocean color}, url = {http://dx.doi.org/10.1016/j.dsr2.2006.01.028}, volume = {53}, year = {2006} }

TY - JOUR ID - citeulike:2425925 L3 - citeulike-article-id:2425925 N2 - The third primary production algorithm round robin (PPARR3) compares output from 24 models that estimate depth-integrated primary production from satellite measurements of ocean color, as well as seven general circulation models (GCMs) coupled with ecosystem or biogeochemical models. Here we compare the global primary production fields corresponding to eight months of 1998 and 1999 as estimated from common input fields of photosynthetically-available radiation (PAR), sea-surface temperature (SST), mixed-layer depth, and chlorophyll concentration. We also quantify the sensitivity of the ocean-color-based models to perturbations in their input variables. The pair-wise correlation between ocean-color models was used to cluster them into groups or related output, which reflect the regions and environmental conditions under which they respond differently. The groups do not follow model complexity with regards to wavelength or depth dependence, though they are related to the manner in which temperature is used to parameterize photosynthesis. Global average PP varies by a factor of two between models. The models diverged the most for the Southern Ocean, SST under , and chlorophyll concentration exceeding 1 mg Chl m-3. Based on the conditions under which the model results diverge most, we conclude that current ocean-color-based models are challenged by high-nutrient low-chlorophyll conditions, and extreme temperatures or chlorophyll concentrations. The GCM-based models predict comparable primary production to those based on ocean color: they estimate higher values in the Southern Ocean, at low SST, and in the equatorial band, while they estimate lower values in eutrophic regions (probably because the area of high chlorophyll concentrations is smaller in the GCMs). Further progress in primary production modeling requires improved understanding of the effect of temperature on photosynthesis and better parameterization of the maximum photosynthetic rate. IS - 5-7 JF - Deep Sea Research Part II: Topical Studies in Oceanography EP - 770 TI - A comparison of global estimates of marine primary production from ocean color VL - 53 T2 - The US JGOFS Synthesis and Modeling Project: Phase III SP - 741 KW - oceancolor KW - phytoplankton AU - Carr, Mary-Elena AU - Friedrichs, Marjorie AU - Schmeltz, Marjorie AU - Noguchi AU - Antoine, David AU - Arrigo, Kevin AU - Asanuma, Ichio AU - Aumont, Olivier AU - Barber, Richard AU - Behrenfeld, Michael AU - Bidigare, Robert AU - Buitenhuis, Erik AU - Campbell, Janet AU - Ciotti, Aurea AU - Dierssen, Heidi AU - Dowell, Mark AU - Dunne, John AU - Esaias, Wayne AU - Gentili, Bernard AU - Gregg, Watson AU - Groom, Steve AU - Hoepffner, Nicolas AU - Ishizaka, Joji AU - Kameda, Takahiko AU - Le Quere, Corinne AU - Lohrenz, Steven AU - Marra, John AU - Melin, Frederic AU - Moore, Keith AU - Morel, Andre AU - Reddy, Tasha AU - Ryan, John AU - Scardi, Michele AU - Smyth, Tim AU - Turpie, Kevin AU - Tilstone, Gavin AU - Waters, Kirk AU - Yamanaka, Yasuhiro PY - 2006/0// UR - http://dx.doi.org/10.1016/j.dsr2.2006.01.028 ER -