Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation
Chromophoric dissolved and detrital organic matter (CDM), the optically active fraction of organic matter, affects significantly the underwater light environment and interferes with ocean color algorithms. Here, we studied the distribution and dynamics of CDM in waters around the Antarctic Peninsula...
Published in: | Journal of Marine Systems |
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Language: | English |
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Online Access: | http://hdl.handle.net/10261/60142 https://doi.org/10.1016/j.jmarsys.2010.06.004 |
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ftcsic:oai:digital.csic.es:10261/60142 2024-02-11T09:57:26+01:00 Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation Ortega-Retuerta, E. Siegel, D. Nelson, N. B. Duarte, Carlos M. Reche, Isabel 2010 http://hdl.handle.net/10261/60142 https://doi.org/10.1016/j.jmarsys.2010.06.004 en eng Elsevier doi:10.1016/j.jmarsys.2010.06.004 issn: 0924-7963 Journal of Marine Systems 82: 295- 303 (2010) http://hdl.handle.net/10261/60142 none artículo http://purl.org/coar/resource_type/c_6501 2010 ftcsic https://doi.org/10.1016/j.jmarsys.2010.06.004 2024-01-16T09:42:25Z Chromophoric dissolved and detrital organic matter (CDM), the optically active fraction of organic matter, affects significantly the underwater light environment and interferes with ocean color algorithms. Here, we studied the distribution and dynamics of CDM in waters around the Antarctic Peninsula, Southern Ocean, using remotely sensed data in austral summers from 1997 to 2005. First, we validated the global semi-analytic algorithm Garver-Siegel-Maritorena (GSM) by comparing simultaneous field and satellite measurements of CDM. These comparisons confirmed the validity of CDM satellite measurements obtained by the GSM algorithm (r2=0.74, slope value=1.01±0.16, n=15).We found a higher (20%) contribution of detrital particles to the CDM signal compared to other studies in lower latitudes (average 12%). Patches of higher CDM were observed in coastal areas and zones with recent ice melting. The seasonal variability of CDM, with maximum values at the end of austral summer, appeared to be ultimately controlled by the dynamics of ice, both directly and indirectly through the growth of phytoplankton and other organisms which are potential sources of CDM. At an interannual timescale, CDM dynamics may be driven by climatic forcing such as the Antarctic Oscillation. © 2010 Elsevier B.V. This work was funded by the Spanish Ministry of Science and Technology (ICEPOS, REN2002-04165-CO3-02 to CMD and DISPAR, CGL2005- 00076 to IR) E. O.-R. was supported by fellowships from the Spanish Ministry of Science and Education and the University of Granada. Peer Reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula Austral Southern Ocean The Antarctic Journal of Marine Systems 82 4 295 303 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
Chromophoric dissolved and detrital organic matter (CDM), the optically active fraction of organic matter, affects significantly the underwater light environment and interferes with ocean color algorithms. Here, we studied the distribution and dynamics of CDM in waters around the Antarctic Peninsula, Southern Ocean, using remotely sensed data in austral summers from 1997 to 2005. First, we validated the global semi-analytic algorithm Garver-Siegel-Maritorena (GSM) by comparing simultaneous field and satellite measurements of CDM. These comparisons confirmed the validity of CDM satellite measurements obtained by the GSM algorithm (r2=0.74, slope value=1.01±0.16, n=15).We found a higher (20%) contribution of detrital particles to the CDM signal compared to other studies in lower latitudes (average 12%). Patches of higher CDM were observed in coastal areas and zones with recent ice melting. The seasonal variability of CDM, with maximum values at the end of austral summer, appeared to be ultimately controlled by the dynamics of ice, both directly and indirectly through the growth of phytoplankton and other organisms which are potential sources of CDM. At an interannual timescale, CDM dynamics may be driven by climatic forcing such as the Antarctic Oscillation. © 2010 Elsevier B.V. This work was funded by the Spanish Ministry of Science and Technology (ICEPOS, REN2002-04165-CO3-02 to CMD and DISPAR, CGL2005- 00076 to IR) E. O.-R. was supported by fellowships from the Spanish Ministry of Science and Education and the University of Granada. Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Ortega-Retuerta, E. Siegel, D. Nelson, N. B. Duarte, Carlos M. Reche, Isabel |
spellingShingle |
Ortega-Retuerta, E. Siegel, D. Nelson, N. B. Duarte, Carlos M. Reche, Isabel Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation |
author_facet |
Ortega-Retuerta, E. Siegel, D. Nelson, N. B. Duarte, Carlos M. Reche, Isabel |
author_sort |
Ortega-Retuerta, E. |
title |
Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation |
title_short |
Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation |
title_full |
Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation |
title_fullStr |
Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation |
title_full_unstemmed |
Observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the Southern Ocean: Validation, dynamics and regulation |
title_sort |
observations of chromophoric dissolved and detrital organic matter distribution using remote sensing in the southern ocean: validation, dynamics and regulation |
publisher |
Elsevier |
publishDate |
2010 |
url |
http://hdl.handle.net/10261/60142 https://doi.org/10.1016/j.jmarsys.2010.06.004 |
geographic |
Antarctic Antarctic Peninsula Austral Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Austral Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
op_relation |
doi:10.1016/j.jmarsys.2010.06.004 issn: 0924-7963 Journal of Marine Systems 82: 295- 303 (2010) http://hdl.handle.net/10261/60142 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.jmarsys.2010.06.004 |
container_title |
Journal of Marine Systems |
container_volume |
82 |
container_issue |
4 |
container_start_page |
295 |
op_container_end_page |
303 |
_version_ |
1790609726211358720 |