The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS
The United States Southern Ocean Joint Global Ocean Flux Study (JGOFS), also known as AESOPS (Antarctic Environment and Southern Ocean Process Study), focused on two distinct regions. The first was the Ross-Sea continental shelf, where a series of six cruises collected a variety of data from October...
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ftcdlib:oai:escholarship.org:ark:/13030/qt62q2b6xp 2023-06-11T04:05:38+02:00 The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS Smith, Walker O Anderson, Robert F Moore, J Keith Codispoti, Louis A Morrison, John M 3073 - 3093 2000-01-01 application/pdf https://escholarship.org/uc/item/62q2b6xp unknown eScholarship, University of California qt62q2b6xp https://escholarship.org/uc/item/62q2b6xp CC-BY Deep Sea Research Part II Topical Studies in Oceanography, vol 47, iss 15-16 Life Below Water Geochemistry Oceanography Ecology article 2000 ftcdlib 2023-05-29T18:00:29Z The United States Southern Ocean Joint Global Ocean Flux Study (JGOFS), also known as AESOPS (Antarctic Environment and Southern Ocean Process Study), focused on two distinct regions. The first was the Ross-Sea continental shelf, where a series of six cruises collected a variety of data from October 1996 through February 1998. The second area was the southwest Pacific sector of the Southern Ocean, spanning the Antarctic Circumpolar Current (ACC) at ∼ 170°W. Data were collected within this region during five cruises from September 1996 through March 1998, as well as during selected transits between New Zealand and the Ross Sea. The first results of these cruises are described in this issue. The Ross-Sea investigation extensively sampled the area along 76°30′S to elucidate the temporal patterns and processes that contribute to making this one of the Antarctic's most productive seas. Hydrographic distributions confirm that stratification is initiated early in October within the polynya, generating an environment that is favorable for phytoplankton growth. Significant spatial variations in mixed-layer depths, the timing of the onset of stratification, and the strength of the stratification existed throughout the growing season. Nutrient concentrations reflected phytoplankton uptake, and reached their seasonal minimal in early February. Chlorophyll concentrations were maximal in early January, whereas productivity was maximal in late November, which reflects the temporal uncoupling between growth and biomass accumulation in the region. Independent estimates of biogenic export suggest that majority of the flux occurred in late summer and was strongly uncoupled from phytoplankton growth. The ACC region exhibited seasonal changes that in some cases were greater than those observed in the Ross Sea. Article in Journal/Newspaper Antarc* Antarctic Ross Sea Southern Ocean University of California: eScholarship Antarctic New Zealand Pacific Ross Sea Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Life Below Water Geochemistry Oceanography Ecology |
spellingShingle |
Life Below Water Geochemistry Oceanography Ecology Smith, Walker O Anderson, Robert F Moore, J Keith Codispoti, Louis A Morrison, John M The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS |
topic_facet |
Life Below Water Geochemistry Oceanography Ecology |
description |
The United States Southern Ocean Joint Global Ocean Flux Study (JGOFS), also known as AESOPS (Antarctic Environment and Southern Ocean Process Study), focused on two distinct regions. The first was the Ross-Sea continental shelf, where a series of six cruises collected a variety of data from October 1996 through February 1998. The second area was the southwest Pacific sector of the Southern Ocean, spanning the Antarctic Circumpolar Current (ACC) at ∼ 170°W. Data were collected within this region during five cruises from September 1996 through March 1998, as well as during selected transits between New Zealand and the Ross Sea. The first results of these cruises are described in this issue. The Ross-Sea investigation extensively sampled the area along 76°30′S to elucidate the temporal patterns and processes that contribute to making this one of the Antarctic's most productive seas. Hydrographic distributions confirm that stratification is initiated early in October within the polynya, generating an environment that is favorable for phytoplankton growth. Significant spatial variations in mixed-layer depths, the timing of the onset of stratification, and the strength of the stratification existed throughout the growing season. Nutrient concentrations reflected phytoplankton uptake, and reached their seasonal minimal in early February. Chlorophyll concentrations were maximal in early January, whereas productivity was maximal in late November, which reflects the temporal uncoupling between growth and biomass accumulation in the region. Independent estimates of biogenic export suggest that majority of the flux occurred in late summer and was strongly uncoupled from phytoplankton growth. The ACC region exhibited seasonal changes that in some cases were greater than those observed in the Ross Sea. |
format |
Article in Journal/Newspaper |
author |
Smith, Walker O Anderson, Robert F Moore, J Keith Codispoti, Louis A Morrison, John M |
author_facet |
Smith, Walker O Anderson, Robert F Moore, J Keith Codispoti, Louis A Morrison, John M |
author_sort |
Smith, Walker O |
title |
The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS |
title_short |
The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS |
title_full |
The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS |
title_fullStr |
The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS |
title_full_unstemmed |
The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS |
title_sort |
us southern ocean joint global ocean flux study: an introduction to aesops |
publisher |
eScholarship, University of California |
publishDate |
2000 |
url |
https://escholarship.org/uc/item/62q2b6xp |
op_coverage |
3073 - 3093 |
geographic |
Antarctic New Zealand Pacific Ross Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic New Zealand Pacific Ross Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Ross Sea Southern Ocean |
op_source |
Deep Sea Research Part II Topical Studies in Oceanography, vol 47, iss 15-16 |
op_relation |
qt62q2b6xp https://escholarship.org/uc/item/62q2b6xp |
op_rights |
CC-BY |
_version_ |
1768377190742753280 |