Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic
2018 Ocean Sciences Meeting, 11-16 February, in Portland, Oregon Climate warming affects the development and distribution of sea ice south of the Polar Front around Antarctica and its associated ecosystems, but at present the evidence of feedbacks on climate through ecosystem-derived changes in the...
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ftcsic:oai:digital.csic.es:10261/186004 2024-02-11T09:56:55+01:00 Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic Simó, Rafel Dall'Osto, Manuel Cortes, Pau Zamanillo Campos, Marina Rodríguez-Ros, P. Cree, C. Nunes, Sdena Pérez, Gonzalo L. Ortega-Retuerta, E. Emelianov, Mikhail Marrasé, Cèlia Vaqué, Dolors Estrada, Marta Sala, M. Montserrat Fitzsimons, M. Beale, Rachel Airs, Ruth Ovadnevaite, Jurgita Paglione, Marco Beddows, D.C.S. Ceburnis, Darius Rinaldi, Matteo Decesari, S. Facchini, Cristina Harrison, Roy M. O'Dowd, Colin D. 2018-02-11 http://hdl.handle.net/10261/186004 unknown American Geophysical Union Association for the Sciences of Limnology and Oceanography https://agu.confex.com/agu/os18/meetingapp.cgi/Paper/324481 Sí 2018 Ocean Sciences Meeting (2018) http://hdl.handle.net/10261/186004 none comunicación de congreso http://purl.org/coar/resource_type/c_5794 2018 ftcsic 2024-01-16T10:41:18Z 2018 Ocean Sciences Meeting, 11-16 February, in Portland, Oregon Climate warming affects the development and distribution of sea ice south of the Polar Front around Antarctica and its associated ecosystems, but at present the evidence of feedbacks on climate through ecosystem-derived changes in the atmosphere is sparse. The PEGASO cruise visited the Antarctic region of the South Orkney Islands at the northern edge of the Weddell Sea, and the Subantarctic region of the South Georgia Island, in summer 2015. Each region was studied intensively in lagrangian mode over a few days and diel cycles. Oceanic measurements of plankton abundance, diversity, activity and physiology, plus organic matter characteristics, organic volatile compounds (dimethylsulfide, isoprene, halomethanes) and nutrient concentrations, were compared with simultaneous atmospheric measurements of aerosol numbers, size and composition. Samples of surface seawater and melted sea ice were bubbled in an aerosol-generation tank and the characteristics of the sprayed aerosol were monitored. This integrated study allowed to link phytoplankton bloom stages and the emission of aerosol-forming particulate and gaseous substances. For instance, we observed that the microbiota of sea ice and sea ice-influenced ocean are a previously unknown significant source of atmospheric organic nitrogen, including low molecular weight alkyl-amines. Given the keystone role of nitrogen, sulfur, carbon and iodine compounds in aerosol formation, growth and neutralization, our findings call for greater chemical and source diversity in the modeling efforts linking the marine ecosystem to aerosol-mediated climate effects in the Southern Ocean Peer Reviewed Conference Object Antarc* Antarctic Antarctica Sea ice South Georgia Island South Orkney Islands Southern Ocean Weddell Sea Digital.CSIC (Spanish National Research Council) Antarctic South Georgia Island ENVELOPE(-36.750,-36.750,-54.250,-54.250) South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Southern Ocean The Antarctic Weddell Weddell Sea |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
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description |
2018 Ocean Sciences Meeting, 11-16 February, in Portland, Oregon Climate warming affects the development and distribution of sea ice south of the Polar Front around Antarctica and its associated ecosystems, but at present the evidence of feedbacks on climate through ecosystem-derived changes in the atmosphere is sparse. The PEGASO cruise visited the Antarctic region of the South Orkney Islands at the northern edge of the Weddell Sea, and the Subantarctic region of the South Georgia Island, in summer 2015. Each region was studied intensively in lagrangian mode over a few days and diel cycles. Oceanic measurements of plankton abundance, diversity, activity and physiology, plus organic matter characteristics, organic volatile compounds (dimethylsulfide, isoprene, halomethanes) and nutrient concentrations, were compared with simultaneous atmospheric measurements of aerosol numbers, size and composition. Samples of surface seawater and melted sea ice were bubbled in an aerosol-generation tank and the characteristics of the sprayed aerosol were monitored. This integrated study allowed to link phytoplankton bloom stages and the emission of aerosol-forming particulate and gaseous substances. For instance, we observed that the microbiota of sea ice and sea ice-influenced ocean are a previously unknown significant source of atmospheric organic nitrogen, including low molecular weight alkyl-amines. Given the keystone role of nitrogen, sulfur, carbon and iodine compounds in aerosol formation, growth and neutralization, our findings call for greater chemical and source diversity in the modeling efforts linking the marine ecosystem to aerosol-mediated climate effects in the Southern Ocean Peer Reviewed |
format |
Conference Object |
author |
Simó, Rafel Dall'Osto, Manuel Cortes, Pau Zamanillo Campos, Marina Rodríguez-Ros, P. Cree, C. Nunes, Sdena Pérez, Gonzalo L. Ortega-Retuerta, E. Emelianov, Mikhail Marrasé, Cèlia Vaqué, Dolors Estrada, Marta Sala, M. Montserrat Fitzsimons, M. Beale, Rachel Airs, Ruth Ovadnevaite, Jurgita Paglione, Marco Beddows, D.C.S. Ceburnis, Darius Rinaldi, Matteo Decesari, S. Facchini, Cristina Harrison, Roy M. O'Dowd, Colin D. |
spellingShingle |
Simó, Rafel Dall'Osto, Manuel Cortes, Pau Zamanillo Campos, Marina Rodríguez-Ros, P. Cree, C. Nunes, Sdena Pérez, Gonzalo L. Ortega-Retuerta, E. Emelianov, Mikhail Marrasé, Cèlia Vaqué, Dolors Estrada, Marta Sala, M. Montserrat Fitzsimons, M. Beale, Rachel Airs, Ruth Ovadnevaite, Jurgita Paglione, Marco Beddows, D.C.S. Ceburnis, Darius Rinaldi, Matteo Decesari, S. Facchini, Cristina Harrison, Roy M. O'Dowd, Colin D. Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic |
author_facet |
Simó, Rafel Dall'Osto, Manuel Cortes, Pau Zamanillo Campos, Marina Rodríguez-Ros, P. Cree, C. Nunes, Sdena Pérez, Gonzalo L. Ortega-Retuerta, E. Emelianov, Mikhail Marrasé, Cèlia Vaqué, Dolors Estrada, Marta Sala, M. Montserrat Fitzsimons, M. Beale, Rachel Airs, Ruth Ovadnevaite, Jurgita Paglione, Marco Beddows, D.C.S. Ceburnis, Darius Rinaldi, Matteo Decesari, S. Facchini, Cristina Harrison, Roy M. O'Dowd, Colin D. |
author_sort |
Simó, Rafel |
title |
Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic |
title_short |
Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic |
title_full |
Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic |
title_fullStr |
Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic |
title_full_unstemmed |
Pelagic ecosystem emissions of aerosol-forming substances in Antarctica and the Subantarctic |
title_sort |
pelagic ecosystem emissions of aerosol-forming substances in antarctica and the subantarctic |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/186004 |
long_lat |
ENVELOPE(-36.750,-36.750,-54.250,-54.250) ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
Antarctic South Georgia Island South Orkney Islands Southern Ocean The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic South Georgia Island South Orkney Islands Southern Ocean The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Sea ice South Georgia Island South Orkney Islands Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Sea ice South Georgia Island South Orkney Islands Southern Ocean Weddell Sea |
op_relation |
https://agu.confex.com/agu/os18/meetingapp.cgi/Paper/324481 Sí 2018 Ocean Sciences Meeting (2018) http://hdl.handle.net/10261/186004 |
op_rights |
none |
_version_ |
1790606911284969472 |