Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica
Dust plays a critical role in Earth's climate system and serves as a natural source of iron and other micronutrients to remote regions of the ocean. We have generated records of dust deposition over the past 500,000 years at three sites spanning the breadth of the equatorial Pacific Ocean. Equa...
Published in: | Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science (AAAS)
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1126/science.1150595 https://www.science.org/doi/pdf/10.1126/science.1150595 |
id |
craaas:10.1126/science.1150595 |
---|---|
record_format |
openpolar |
spelling |
craaas:10.1126/science.1150595 2024-06-23T07:47:23+00:00 Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica Winckler, Gisela Anderson, Robert F. Fleisher, Martin Q. McGee, David Mahowald, Natalie 2008 http://dx.doi.org/10.1126/science.1150595 https://www.science.org/doi/pdf/10.1126/science.1150595 en eng American Association for the Advancement of Science (AAAS) Science volume 320, issue 5872, page 93-96 ISSN 0036-8075 1095-9203 journal-article 2008 craaas https://doi.org/10.1126/science.1150595 2024-06-06T04:01:19Z Dust plays a critical role in Earth's climate system and serves as a natural source of iron and other micronutrients to remote regions of the ocean. We have generated records of dust deposition over the past 500,000 years at three sites spanning the breadth of the equatorial Pacific Ocean. Equatorial Pacific dust fluxes are highly correlated with global ice volume and with dust fluxes to Antarctica, which suggests that dust generation in interhemispheric source regions exhibited a common response to climate change over late-Pleistocene glacial cycles. Our results provide quantitative constraints on the variability of aeolian iron supply to the equatorial Pacific Ocean and, more generally, on the potential contribution of dust to past climate change and to related changes in biogeochemical cycles. Article in Journal/Newspaper Antarc* Antarctica AAAS Resource Center (American Association for the Advancement of Science) Pacific Science 320 5872 93 96 |
institution |
Open Polar |
collection |
AAAS Resource Center (American Association for the Advancement of Science) |
op_collection_id |
craaas |
language |
English |
description |
Dust plays a critical role in Earth's climate system and serves as a natural source of iron and other micronutrients to remote regions of the ocean. We have generated records of dust deposition over the past 500,000 years at three sites spanning the breadth of the equatorial Pacific Ocean. Equatorial Pacific dust fluxes are highly correlated with global ice volume and with dust fluxes to Antarctica, which suggests that dust generation in interhemispheric source regions exhibited a common response to climate change over late-Pleistocene glacial cycles. Our results provide quantitative constraints on the variability of aeolian iron supply to the equatorial Pacific Ocean and, more generally, on the potential contribution of dust to past climate change and to related changes in biogeochemical cycles. |
format |
Article in Journal/Newspaper |
author |
Winckler, Gisela Anderson, Robert F. Fleisher, Martin Q. McGee, David Mahowald, Natalie |
spellingShingle |
Winckler, Gisela Anderson, Robert F. Fleisher, Martin Q. McGee, David Mahowald, Natalie Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica |
author_facet |
Winckler, Gisela Anderson, Robert F. Fleisher, Martin Q. McGee, David Mahowald, Natalie |
author_sort |
Winckler, Gisela |
title |
Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica |
title_short |
Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica |
title_full |
Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica |
title_fullStr |
Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica |
title_full_unstemmed |
Covariant Glacial-Interglacial Dust Fluxes in the Equatorial Pacific and Antarctica |
title_sort |
covariant glacial-interglacial dust fluxes in the equatorial pacific and antarctica |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2008 |
url |
http://dx.doi.org/10.1126/science.1150595 https://www.science.org/doi/pdf/10.1126/science.1150595 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Science volume 320, issue 5872, page 93-96 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.1150595 |
container_title |
Science |
container_volume |
320 |
container_issue |
5872 |
container_start_page |
93 |
op_container_end_page |
96 |
_version_ |
1802651470786461696 |