A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute Passage
A coupled 1-D sea ice-ocean physical-biogeochemical model was developed to investigate the processes governing ice algal and phytoplankton blooms in the seasonally ice-covered Arctic Ocean. The 1-D column is representative of one grid cell in 3-D model applications and provides a tool for parameteri...
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| Format: | Article |
| Language: | English |
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BioOne
2017-07-01
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| Series: | Elementa: Science of the Anthropocene |
| Subjects: | |
| Online Access: | https://www.elementascience.org/articles/229 |
| _version_ | 1818993621180874752 |
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| author | Eric Mortenson Hakase Hayashida Nadja Steiner Adam Monahan Marjolaine Blais Matthew A. Gale Virginie Galindo Michel Gosselin Xianmin Hu Diane Lavoie C. J. Mundy |
| author_facet | Eric Mortenson Hakase Hayashida Nadja Steiner Adam Monahan Marjolaine Blais Matthew A. Gale Virginie Galindo Michel Gosselin Xianmin Hu Diane Lavoie C. J. Mundy |
| author_sort | Eric Mortenson |
| collection | DOAJ |
| description | A coupled 1-D sea ice-ocean physical-biogeochemical model was developed to investigate the processes governing ice algal and phytoplankton blooms in the seasonally ice-covered Arctic Ocean. The 1-D column is representative of one grid cell in 3-D model applications and provides a tool for parameterization development. The model was applied to Resolute Passage in the Canadian Arctic Archipelago and assessed with observations from a field campaign during spring of 2010. The factors considered to limit the growth of simulated ice algae and phytoplankton were light, nutrients, and in the case of ice algae, ice melt. In addition to the standard simulation, several model experiments were conducted to determine the sensitivity of the simulated ice algal bloom to parameterizations of light, mortality, and pre-bloom biomass. Model results indicated that: (1) ice algae limit subsequent pelagic productivity in the upper 10 m by depleting nutrients to limiting levels; (2) light availability and pre-bloom biomass determine the onset timing of the ice algal bloom; (3) the maximum biomass is relatively insensitive to the pre-bloom biomass, but is limited by nutrient availability; (4) a combination of linear and quadratic parameterizations of mortality rate is required to adequately simulate the evolution of the ice algal bloom; and (5) a sinking rate for large detritus greater than a threshold of ∼10 m d–1 effectively strips the surface waters of the limiting nutrient (silicate) after the ice algal bloom, supporting the development of a deep chlorophyll maximum. |
| first_indexed | 2024-12-20T20:44:58Z |
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| id | doaj.art-96d72e016f1c473f98529f6240b7c83b |
| institution | Directory Open Access Journal |
| issn | 2325-1026 |
| language | English |
| last_indexed | 2024-12-20T20:44:58Z |
| publishDate | 2017-07-01 |
| publisher | BioOne |
| record_format | Article |
| series | Elementa: Science of the Anthropocene |
| spelling | doaj.art-96d72e016f1c473f98529f6240b7c83b2022-12-21T19:27:03ZengBioOneElementa: Science of the Anthropocene2325-10262017-07-01510.1525/elementa.229181A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute PassageEric Mortenson0Hakase Hayashida1Nadja Steiner2Adam Monahan3Marjolaine Blais4Matthew A. Gale5Virginie Galindo6Michel Gosselin7Xianmin Hu8Diane Lavoie9C. J. Mundy10School of Earth and Ocean Sciences, University of Victoria, Victoria, British ColumbiaSchool of Earth and Ocean Sciences, University of Victoria, Victoria, British ColumbiaInstitute of Ocean Sciences, Department of Fisheries and Ocean Canada, Sidney, British ColumbiaSchool of Earth and Ocean Sciences, University of Victoria, Victoria, British ColumbiaInstitut des sciences de la mer de Rimouski, Université du Québec à Rimouski, Rimouski, QuébecPort of Dover, Dover, KentCentre for Earth Observation Science, Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, ManitobaInstitut des sciences de la mer de Rimouski, Université du Québec à Rimouski, Rimouski, QuébecDepartment of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AlbertaMaurice Lamontagne Institute, Department of Fisheries and Ocean Canada, Mont-Joli, QuébecCentre for Earth Observation Science, Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, ManitobaA coupled 1-D sea ice-ocean physical-biogeochemical model was developed to investigate the processes governing ice algal and phytoplankton blooms in the seasonally ice-covered Arctic Ocean. The 1-D column is representative of one grid cell in 3-D model applications and provides a tool for parameterization development. The model was applied to Resolute Passage in the Canadian Arctic Archipelago and assessed with observations from a field campaign during spring of 2010. The factors considered to limit the growth of simulated ice algae and phytoplankton were light, nutrients, and in the case of ice algae, ice melt. In addition to the standard simulation, several model experiments were conducted to determine the sensitivity of the simulated ice algal bloom to parameterizations of light, mortality, and pre-bloom biomass. Model results indicated that: (1) ice algae limit subsequent pelagic productivity in the upper 10 m by depleting nutrients to limiting levels; (2) light availability and pre-bloom biomass determine the onset timing of the ice algal bloom; (3) the maximum biomass is relatively insensitive to the pre-bloom biomass, but is limited by nutrient availability; (4) a combination of linear and quadratic parameterizations of mortality rate is required to adequately simulate the evolution of the ice algal bloom; and (5) a sinking rate for large detritus greater than a threshold of ∼10 m d–1 effectively strips the surface waters of the limiting nutrient (silicate) after the ice algal bloom, supporting the development of a deep chlorophyll maximum.https://www.elementascience.org/articles/229sea ice algaebiogeochemistry modelmarine Arcticprimary production |
| spellingShingle | Eric Mortenson Hakase Hayashida Nadja Steiner Adam Monahan Marjolaine Blais Matthew A. Gale Virginie Galindo Michel Gosselin Xianmin Hu Diane Lavoie C. J. Mundy A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute Passage Elementa: Science of the Anthropocene sea ice algae biogeochemistry model marine Arctic primary production |
| title | A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute Passage |
| title_full | A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute Passage |
| title_fullStr | A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute Passage |
| title_full_unstemmed | A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute Passage |
| title_short | A model-based analysis of physical and biological controls on ice algal and pelagic primary production in Resolute Passage |
| title_sort | model based analysis of physical and biological controls on ice algal and pelagic primary production in resolute passage |
| topic | sea ice algae biogeochemistry model marine Arctic primary production |
| url | https://www.elementascience.org/articles/229 |
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