New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean
To identify and quantify the principal processes that control the partitioning of carbon among oceanic reservoirs and between the ocean and atmosphere on focal and regional scales, with a view towards synthesis and prediction on a global scale, is a specific goal of the U.S. JGOFS Synthesis and Mode...
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ftmaineuniv:oai:digitalcommons.library.umaine.edu:orsp_reports-1252 2023-05-15T15:18:27+02:00 New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean Chai, Fei 2001-08-07T07:00:00Z application/pdf https://digitalcommons.library.umaine.edu/orsp_reports/250 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1252&context=orsp_reports unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/orsp_reports/250 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1252&context=orsp_reports This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). University of Maine Office of Research Administration: Grant Reports Biological Oceanography Ocean climate Oceanography text 2001 ftmaineuniv 2023-03-12T19:16:11Z To identify and quantify the principal processes that control the partitioning of carbon among oceanic reservoirs and between the ocean and atmosphere on focal and regional scales, with a view towards synthesis and prediction on a global scale, is a specific goal of the U.S. JGOFS Synthesis and Modeling Project. As a contribution towards achieving this goal, Drs. Barber, Peng, Chai and Dugdale will develop an ecosystem model for the equatorial Pacific Ocean, with a focus on how silicate and iron affect new and export productivity and the partitioning of carbon between the atmosphere, surface ocean and deep ocean. The study will use an ecosystem model embedded in a state-of-the-art general circulation model for the equatorial Pacific Ocean to investigate how new and export productivity responds to changing physical and chemical forcing. The domain of the model is between 30+S and 30+N, 120+E and 70+W, with real geometry and topography, but analysis will focus on the equatorial region from 5+N to 5+S. The recent upgrade of supercomputers at North Carolina Supercomputing Center (NCSC) (CrayT90) and Arctic Region Supercomputing Center (ARSC) (Cray-YMP) and the award of several hundred hours of CPU time to Peng, Chai and Barber make it possible to embed an ecosystem model with modest complexity in a high resolution, three dimensional prognostic ocean model, and to conduct numerous experiments on the ecosystem model structure and parameters in a timely and efficient manner. Phase 1 of the project will modify an existing five-compartment ecosystem model by adding three more compartments (silicate, diatoms and mesozooplanktonic grazers) following the approach of Dugdale et al. The preliminary objective of this three-dimensional Si/N/light model is to reproduce High Nitrate-Low Silicate-Low Chlorophyll (HNLSLC) conditions. With size-dependent growth rate responses in small phytoplankton and diatoms and varying grazing vulnerability, the role of new diatom production regulating on Si and Fe can be thoroughly investigated. ... Text Arctic Phytoplankton The University of Maine: DigitalCommons@UMaine Arctic Pacific |
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language |
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Biological Oceanography Ocean climate Oceanography |
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Biological Oceanography Ocean climate Oceanography Chai, Fei New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean |
topic_facet |
Biological Oceanography Ocean climate Oceanography |
description |
To identify and quantify the principal processes that control the partitioning of carbon among oceanic reservoirs and between the ocean and atmosphere on focal and regional scales, with a view towards synthesis and prediction on a global scale, is a specific goal of the U.S. JGOFS Synthesis and Modeling Project. As a contribution towards achieving this goal, Drs. Barber, Peng, Chai and Dugdale will develop an ecosystem model for the equatorial Pacific Ocean, with a focus on how silicate and iron affect new and export productivity and the partitioning of carbon between the atmosphere, surface ocean and deep ocean. The study will use an ecosystem model embedded in a state-of-the-art general circulation model for the equatorial Pacific Ocean to investigate how new and export productivity responds to changing physical and chemical forcing. The domain of the model is between 30+S and 30+N, 120+E and 70+W, with real geometry and topography, but analysis will focus on the equatorial region from 5+N to 5+S. The recent upgrade of supercomputers at North Carolina Supercomputing Center (NCSC) (CrayT90) and Arctic Region Supercomputing Center (ARSC) (Cray-YMP) and the award of several hundred hours of CPU time to Peng, Chai and Barber make it possible to embed an ecosystem model with modest complexity in a high resolution, three dimensional prognostic ocean model, and to conduct numerous experiments on the ecosystem model structure and parameters in a timely and efficient manner. Phase 1 of the project will modify an existing five-compartment ecosystem model by adding three more compartments (silicate, diatoms and mesozooplanktonic grazers) following the approach of Dugdale et al. The preliminary objective of this three-dimensional Si/N/light model is to reproduce High Nitrate-Low Silicate-Low Chlorophyll (HNLSLC) conditions. With size-dependent growth rate responses in small phytoplankton and diatoms and varying grazing vulnerability, the role of new diatom production regulating on Si and Fe can be thoroughly investigated. ... |
format |
Text |
author |
Chai, Fei |
author_facet |
Chai, Fei |
author_sort |
Chai, Fei |
title |
New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean |
title_short |
New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean |
title_full |
New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean |
title_fullStr |
New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean |
title_full_unstemmed |
New and Export Productivity Regulation by Si and Fe in the Equatorial Pacific Ocean |
title_sort |
new and export productivity regulation by si and fe in the equatorial pacific ocean |
publisher |
DigitalCommons@UMaine |
publishDate |
2001 |
url |
https://digitalcommons.library.umaine.edu/orsp_reports/250 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1252&context=orsp_reports |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Phytoplankton |
genre_facet |
Arctic Phytoplankton |
op_source |
University of Maine Office of Research Administration: Grant Reports |
op_relation |
https://digitalcommons.library.umaine.edu/orsp_reports/250 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1252&context=orsp_reports |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
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1766348643466477568 |