Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum
In this study we examined a wide range of paleo-productivity proxies along a latitudinal transect (36-58°S) of 6 cores in the SW Pacific during the early Holocene climatic optimum, to explore regional patterns of productivity in a slightly warmer-than present world. We used a range of sedimentologic...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.899820 2023-05-15T14:04:57+02:00 Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum Bostock, Helen C Prebble, Joseph G Cortese, Giuseppe Hayward, Bruce William Calvo, Eva Quirós-Collazos, Lucía Kienast, Markus Kim, Kitae MEDIAN LATITUDE: -47.059750 * MEDIAN LONGITUDE: 169.281211 * SOUTH-BOUND LATITUDE: -59.090000 * WEST-BOUND LONGITUDE: 157.050000 * NORTH-BOUND LATITUDE: -36.925000 * EAST-BOUND LONGITUDE: 177.990000 * DATE/TIME START: 1983-01-03T00:00:00 * DATE/TIME END: 1997-05-20T11:11:00 2019-03-29 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.899820 https://doi.org/10.1594/PANGAEA.899820 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.899820 https://doi.org/10.1594/PANGAEA.899820 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bostock, Helen C; Prebble, Joseph G; Cortese, Giuseppe; Hayward, Bruce William; Calvo, Eva; Quirós-Collazos, Lucía; Kienast, Markus; Kim, K (2019): Paleoproductivity in the SW Pacific Ocean During the Early Holocene Climatic Optimum. Paleoceanography and Paleoclimatology, 34(4), 580-599, https://doi.org/10.1029/2019PA003574 Dinoflagellate cysts Earth System Models Foraminifera paleoproductivity Southern Hemisphere Westerly Winds SW Pacific Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.899820 https://doi.org/10.1029/2019PA003574 2023-01-20T07:34:19Z In this study we examined a wide range of paleo-productivity proxies along a latitudinal transect (36-58°S) of 6 cores in the SW Pacific during the early Holocene climatic optimum, to explore regional patterns of productivity in a slightly warmer-than present world. We used a range of sedimentological, geochemical and paleontological proxies including carbonate content and mass accumulation rates, opal content and mass accumulation rates, alkenone concentrations, a foraminiferal productivity index and dinoflagellate cyst productivity index, nitrogen isotopes and elemental concentrations from micro-XRF. During the early Holocene there is a small increase in productivity in the subtropical waters, no change at the subtropical frontal zone, and conflicting evidence in records immediately south of the subtropical front, where an increase is inferred from one core site, but not at the other. Evidence for an increase in productivity in Antarctic Surface Waters south of the polar front, is also equivocal. We infer a small increase in productivity in subtropical waters and the ocean just south of the subtropical front was associated with changes in the ocean circulation of the SW Pacific, driven by changes in the Southern Hemisphere Westerly Winds split jet structure in this region. Dataset Antarc* Antarctic PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Pacific ENVELOPE(157.050000,177.990000,-36.925000,-59.090000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Dinoflagellate cysts Earth System Models Foraminifera paleoproductivity Southern Hemisphere Westerly Winds SW Pacific |
spellingShingle |
Dinoflagellate cysts Earth System Models Foraminifera paleoproductivity Southern Hemisphere Westerly Winds SW Pacific Bostock, Helen C Prebble, Joseph G Cortese, Giuseppe Hayward, Bruce William Calvo, Eva Quirós-Collazos, Lucía Kienast, Markus Kim, Kitae Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum |
topic_facet |
Dinoflagellate cysts Earth System Models Foraminifera paleoproductivity Southern Hemisphere Westerly Winds SW Pacific |
description |
In this study we examined a wide range of paleo-productivity proxies along a latitudinal transect (36-58°S) of 6 cores in the SW Pacific during the early Holocene climatic optimum, to explore regional patterns of productivity in a slightly warmer-than present world. We used a range of sedimentological, geochemical and paleontological proxies including carbonate content and mass accumulation rates, opal content and mass accumulation rates, alkenone concentrations, a foraminiferal productivity index and dinoflagellate cyst productivity index, nitrogen isotopes and elemental concentrations from micro-XRF. During the early Holocene there is a small increase in productivity in the subtropical waters, no change at the subtropical frontal zone, and conflicting evidence in records immediately south of the subtropical front, where an increase is inferred from one core site, but not at the other. Evidence for an increase in productivity in Antarctic Surface Waters south of the polar front, is also equivocal. We infer a small increase in productivity in subtropical waters and the ocean just south of the subtropical front was associated with changes in the ocean circulation of the SW Pacific, driven by changes in the Southern Hemisphere Westerly Winds split jet structure in this region. |
format |
Dataset |
author |
Bostock, Helen C Prebble, Joseph G Cortese, Giuseppe Hayward, Bruce William Calvo, Eva Quirós-Collazos, Lucía Kienast, Markus Kim, Kitae |
author_facet |
Bostock, Helen C Prebble, Joseph G Cortese, Giuseppe Hayward, Bruce William Calvo, Eva Quirós-Collazos, Lucía Kienast, Markus Kim, Kitae |
author_sort |
Bostock, Helen C |
title |
Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum |
title_short |
Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum |
title_full |
Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum |
title_fullStr |
Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum |
title_full_unstemmed |
Paleo-productivity in the SW Pacific Ocean during the early Holocene climatic optimum |
title_sort |
paleo-productivity in the sw pacific ocean during the early holocene climatic optimum |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.899820 https://doi.org/10.1594/PANGAEA.899820 |
op_coverage |
MEDIAN LATITUDE: -47.059750 * MEDIAN LONGITUDE: 169.281211 * SOUTH-BOUND LATITUDE: -59.090000 * WEST-BOUND LONGITUDE: 157.050000 * NORTH-BOUND LATITUDE: -36.925000 * EAST-BOUND LONGITUDE: 177.990000 * DATE/TIME START: 1983-01-03T00:00:00 * DATE/TIME END: 1997-05-20T11:11:00 |
long_lat |
ENVELOPE(157.050000,177.990000,-36.925000,-59.090000) |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Supplement to: Bostock, Helen C; Prebble, Joseph G; Cortese, Giuseppe; Hayward, Bruce William; Calvo, Eva; Quirós-Collazos, Lucía; Kienast, Markus; Kim, K (2019): Paleoproductivity in the SW Pacific Ocean During the Early Holocene Climatic Optimum. Paleoceanography and Paleoclimatology, 34(4), 580-599, https://doi.org/10.1029/2019PA003574 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.899820 https://doi.org/10.1594/PANGAEA.899820 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.899820 https://doi.org/10.1029/2019PA003574 |
_version_ |
1766276411436302336 |