Circulation and Seasonal Evolution of Polar Waters . . .
The Southern Ocean Iron Release Experiment (SOIREE)was carried out in late summer (February 1999) south of Australia (613S, 1403E . Thisreg)b of the southern Antarctic Zone (AZ-S , between the southern branch of the Polar Front (PF and the southern front of the Antarctic Circumpolar Current (SAACF ,...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.19.4783 2023-05-15T13:47:22+02:00 Circulation and Seasonal Evolution of Polar Waters . . . Tom Trull Stephen R. Rintoul Edward R. Abraham The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.19.4783 http://www.mcs.vuw.ac.nz/~abraham/Publications/SOIREE_settings.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.19.4783 http://www.mcs.vuw.ac.nz/~abraham/Publications/SOIREE_settings.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.mcs.vuw.ac.nz/~abraham/Publications/SOIREE_settings.pdf text 2001 ftciteseerx 2016-01-07T16:50:57Z The Southern Ocean Iron Release Experiment (SOIREE)was carried out in late summer (February 1999) south of Australia (613S, 1403E . Thisreg)b of the southern Antarctic Zone (AZ-S , between the southern branch of the Polar Front (PF and the southern front of the Antarctic Circumpolar Current (SAACF , is characterized by weak currents and is remote from the in#uence of sea-ice or coastal waters. The SOIREE site exhibitshig nutrient concentrations year-round (phosphate, nitrate and silicate remain above 10 #M), low chlorophyll accumulations ((0.5#gbbH and moderate summer mixed-layer depths (50}70 m). The SOIREE iron fertilization led to alarg increase inalgP biomass, particularlylarg diatoms, and persisted into March well after normal seasonal production is complete. No increase in carbon export occurredduring the SOIREE 13-day observation period. The seasonal cycles of mixed-layer development and low biomass accumulation at the SOIREE site are representative of most of theregFb between the PF and the SACCF, i.e. between &54 and &623S, and to a lesser extent the Polar Frontal Zone. However, north of &593S surface waters are depleted in silica by mid-summer (as occurs year-round north of the Subantarctic Front). Adi!erent response to iron fertilization is likely under these conditions, possibly the promotion ofligP/5 silici"ed diatoms and non-siliceousorgsilice whose ability to export carbon is uncertain. The SOIREE fertilized waters are likely to have remained at the surface in the AZ-SthrougHb) the winter. Text Antarc* Antarctic Sea ice Southern Ocean Unknown Antarctic Southern Ocean The Antarctic |
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English |
description |
The Southern Ocean Iron Release Experiment (SOIREE)was carried out in late summer (February 1999) south of Australia (613S, 1403E . Thisreg)b of the southern Antarctic Zone (AZ-S , between the southern branch of the Polar Front (PF and the southern front of the Antarctic Circumpolar Current (SAACF , is characterized by weak currents and is remote from the in#uence of sea-ice or coastal waters. The SOIREE site exhibitshig nutrient concentrations year-round (phosphate, nitrate and silicate remain above 10 #M), low chlorophyll accumulations ((0.5#gbbH and moderate summer mixed-layer depths (50}70 m). The SOIREE iron fertilization led to alarg increase inalgP biomass, particularlylarg diatoms, and persisted into March well after normal seasonal production is complete. No increase in carbon export occurredduring the SOIREE 13-day observation period. The seasonal cycles of mixed-layer development and low biomass accumulation at the SOIREE site are representative of most of theregFb between the PF and the SACCF, i.e. between &54 and &623S, and to a lesser extent the Polar Frontal Zone. However, north of &593S surface waters are depleted in silica by mid-summer (as occurs year-round north of the Subantarctic Front). Adi!erent response to iron fertilization is likely under these conditions, possibly the promotion ofligP/5 silici"ed diatoms and non-siliceousorgsilice whose ability to export carbon is uncertain. The SOIREE fertilized waters are likely to have remained at the surface in the AZ-SthrougHb) the winter. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Tom Trull Stephen R. Rintoul Edward R. Abraham |
spellingShingle |
Tom Trull Stephen R. Rintoul Edward R. Abraham Circulation and Seasonal Evolution of Polar Waters . . . |
author_facet |
Tom Trull Stephen R. Rintoul Edward R. Abraham |
author_sort |
Tom Trull |
title |
Circulation and Seasonal Evolution of Polar Waters . . . |
title_short |
Circulation and Seasonal Evolution of Polar Waters . . . |
title_full |
Circulation and Seasonal Evolution of Polar Waters . . . |
title_fullStr |
Circulation and Seasonal Evolution of Polar Waters . . . |
title_full_unstemmed |
Circulation and Seasonal Evolution of Polar Waters . . . |
title_sort |
circulation and seasonal evolution of polar waters . . . |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.19.4783 http://www.mcs.vuw.ac.nz/~abraham/Publications/SOIREE_settings.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
http://www.mcs.vuw.ac.nz/~abraham/Publications/SOIREE_settings.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.19.4783 http://www.mcs.vuw.ac.nz/~abraham/Publications/SOIREE_settings.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766246974871306240 |