Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years
Despite the multiple impacts of mineral aerosols on global and regional climate and the primary climatic control on atmospheric dust fluxes, dust-climate feedbacks remain poorly constrained, particularly at submillennial time scales, hampering regional and global climate models. We reconstruct Sahar...
Main Authors: | , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Science Advance - American Association for the Advancement of Science (AAAS)
2021
|
Subjects: | |
Online Access: | http://documenta.ciemat.es/handle/123456789/2309 |
id |
ftciemat:oai:utils.ciemat.es:123456789/2309 |
---|---|
record_format |
openpolar |
spelling |
ftciemat:oai:utils.ciemat.es:123456789/2309 2024-09-15T18:21:53+00:00 Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years Cruz, Juncal A. McDermott, Frank Turrero, Mar??a J. Edwards, R. Lawrence Mart??n-Chivelet, Javier 2021-06-25 http://documenta.ciemat.es/handle/123456789/2309 en eng Science Advance - American Association for the Advancement of Science (AAAS) J. A. Cruz, F. McDermott, M. J. Turrero, R. L. Edwards, J. Mart??n-Chivelet, Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years. Sci. Adv. 7, eabe6102 (2021). 2375-2548 http://documenta.ciemat.es/handle/123456789/2309 info:eu-repo/semantics/openAccess Saharan dust strontium isotopes Climatic episodes info:eu-repo/semantics/article 2021 ftciemat 2024-08-05T14:00:46Z Despite the multiple impacts of mineral aerosols on global and regional climate and the primary climatic control on atmospheric dust fluxes, dust-climate feedbacks remain poorly constrained, particularly at submillennial time scales, hampering regional and global climate models. We reconstruct Saharan dust fluxes over Western Europe for the last 5000 years, by means of speleothem strontium isotope ratios (87Sr/86Sr) and karst modeling. The record reveals a long-term increase in Saharan dust flux, consistent with progressive North Africa aridification and strengthening of Northern Hemisphere latitudinal climatic gradients. On shorter, centennial to millennial scales, it shows broad variations in dust fluxes, in tune with North Atlantic ocean-atmosphere patterns and with monsoonal variability. Dust fluxes rapidly increase before (and peaks at) Late Holocene multidecadal- to century-scale cold climate events, including those around 4200, 2800, and 1500 years before present, suggesting the operation of previously unknown strong dust-climate negative feedbacks preceding these episodes. Article in Journal/Newspaper North Atlantic Repositorio Institucional del CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas) |
institution |
Open Polar |
collection |
Repositorio Institucional del CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas) |
op_collection_id |
ftciemat |
language |
English |
topic |
Saharan dust strontium isotopes Climatic episodes |
spellingShingle |
Saharan dust strontium isotopes Climatic episodes Cruz, Juncal A. McDermott, Frank Turrero, Mar??a J. Edwards, R. Lawrence Mart??n-Chivelet, Javier Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years |
topic_facet |
Saharan dust strontium isotopes Climatic episodes |
description |
Despite the multiple impacts of mineral aerosols on global and regional climate and the primary climatic control on atmospheric dust fluxes, dust-climate feedbacks remain poorly constrained, particularly at submillennial time scales, hampering regional and global climate models. We reconstruct Saharan dust fluxes over Western Europe for the last 5000 years, by means of speleothem strontium isotope ratios (87Sr/86Sr) and karst modeling. The record reveals a long-term increase in Saharan dust flux, consistent with progressive North Africa aridification and strengthening of Northern Hemisphere latitudinal climatic gradients. On shorter, centennial to millennial scales, it shows broad variations in dust fluxes, in tune with North Atlantic ocean-atmosphere patterns and with monsoonal variability. Dust fluxes rapidly increase before (and peaks at) Late Holocene multidecadal- to century-scale cold climate events, including those around 4200, 2800, and 1500 years before present, suggesting the operation of previously unknown strong dust-climate negative feedbacks preceding these episodes. |
format |
Article in Journal/Newspaper |
author |
Cruz, Juncal A. McDermott, Frank Turrero, Mar??a J. Edwards, R. Lawrence Mart??n-Chivelet, Javier |
author_facet |
Cruz, Juncal A. McDermott, Frank Turrero, Mar??a J. Edwards, R. Lawrence Mart??n-Chivelet, Javier |
author_sort |
Cruz, Juncal A. |
title |
Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years |
title_short |
Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years |
title_full |
Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years |
title_fullStr |
Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years |
title_full_unstemmed |
Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years |
title_sort |
strong links between saharan dust fluxes, monsoon strength, and north atlantic climate during the last 5000 years |
publisher |
Science Advance - American Association for the Advancement of Science (AAAS) |
publishDate |
2021 |
url |
http://documenta.ciemat.es/handle/123456789/2309 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
J. A. Cruz, F. McDermott, M. J. Turrero, R. L. Edwards, J. Mart??n-Chivelet, Strong links between Saharan dust fluxes, monsoon strength, and North Atlantic climate during the last 5000 years. Sci. Adv. 7, eabe6102 (2021). 2375-2548 http://documenta.ciemat.es/handle/123456789/2309 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1810460917756854272 |