Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives
Mineral dust plays an important role in the climate system by interacting with radiation, clouds, and biogeochemical cycles. In addition, natural archives show that the dust cycle experienced variability in the past in response to global and local climate change. The compilation of the DIRTMAP paleo...
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Uppsala universitet, Luft-, vatten- och landskapslära
2015
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-258524 https://doi.org/10.5194/cp-11-869-2015 |
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ftuppsalauniv:oai:DiVA.org:uu-258524 2023-05-15T17:32:06+02:00 Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives Albani, S Mahowald, N M Winckler, G Anderson, R F Bradtmiller, L I Delmonte, B François, R Goman, M Heavens, N G Hesse, P P Hovan, S A Kang, S G Kohfeld, K E Lu, H Maggi, V Mason, A Mayewski, P A McGee, D Miao, X Otto-Bliesner, L Perry, A T Pourmand, A Roberts, H M Rosenbloom, N Stevens, Thomas Sun, J 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-258524 https://doi.org/10.5194/cp-11-869-2015 eng eng Uppsala universitet, Luft-, vatten- och landskapslära Climate of the Past, 1814-9324, 2015, 11:6, s. 869-903 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-258524 doi:10.5194/cp-11-869-2015 ISI:000357119900006 info:eu-repo/semantics/openAccess Geosciences Multidisciplinary Multidisciplinär geovetenskap Article in journal info:eu-repo/semantics/article text 2015 ftuppsalauniv https://doi.org/10.5194/cp-11-869-2015 2023-02-23T21:52:08Z Mineral dust plays an important role in the climate system by interacting with radiation, clouds, and biogeochemical cycles. In addition, natural archives show that the dust cycle experienced variability in the past in response to global and local climate change. The compilation of the DIRTMAP paleodust datasets in the last two decades provided a target for paleoclimate models that include the dust cycle, following a time slice approach. We propose an innovative framework to organize a paleodust dataset that moves on from the positive experience of DIRTMAP and takes into account new scientific challenges, by providing a concise and accessible dataset of temporally resolved records of dust mass accumulation rates and particle grain-size distributions. We consider data from ice cores, marine sediments, loess/paleosol sequences, lake sediments, and peat bogs for this compilation, with a temporal focus on the Holocene period. This global compilation allows investigation of the potential, uncertainties and confidence level of dust mass accumulation rates reconstructions, and highlights the importance of dust particle size information for accurate and quantitative reconstructions of the dust cycle. After applying criteria that help to establish that the data considered represent changes in dust deposition, 43 paleodust records have been identified, with the highest density of dust deposition data occurring in the North Atlantic region. Although the temporal evolution of dust in the North Atlantic appears consistent across several cores and suggest that minimum dust fluxes are likely observed during the Early to mid-Holocene period (6000–8000 years ago), the magnitude of dust fluxes in these observations is not fully consistent, suggesting that more work needs to be done to synthesize datasets for the Holocene. Based on the data compilation, we used the Community Earth System Model to estimate the mass balance and variability of the global dust cycle during the Holocene, with dust load ranging from 17.1 to 20.5 Tg ... Article in Journal/Newspaper North Atlantic Uppsala University: Publications (DiVA) Climate of the Past 11 6 869 903 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Geosciences Multidisciplinary Multidisciplinär geovetenskap |
spellingShingle |
Geosciences Multidisciplinary Multidisciplinär geovetenskap Albani, S Mahowald, N M Winckler, G Anderson, R F Bradtmiller, L I Delmonte, B François, R Goman, M Heavens, N G Hesse, P P Hovan, S A Kang, S G Kohfeld, K E Lu, H Maggi, V Mason, A Mayewski, P A McGee, D Miao, X Otto-Bliesner, L Perry, A T Pourmand, A Roberts, H M Rosenbloom, N Stevens, Thomas Sun, J Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives |
topic_facet |
Geosciences Multidisciplinary Multidisciplinär geovetenskap |
description |
Mineral dust plays an important role in the climate system by interacting with radiation, clouds, and biogeochemical cycles. In addition, natural archives show that the dust cycle experienced variability in the past in response to global and local climate change. The compilation of the DIRTMAP paleodust datasets in the last two decades provided a target for paleoclimate models that include the dust cycle, following a time slice approach. We propose an innovative framework to organize a paleodust dataset that moves on from the positive experience of DIRTMAP and takes into account new scientific challenges, by providing a concise and accessible dataset of temporally resolved records of dust mass accumulation rates and particle grain-size distributions. We consider data from ice cores, marine sediments, loess/paleosol sequences, lake sediments, and peat bogs for this compilation, with a temporal focus on the Holocene period. This global compilation allows investigation of the potential, uncertainties and confidence level of dust mass accumulation rates reconstructions, and highlights the importance of dust particle size information for accurate and quantitative reconstructions of the dust cycle. After applying criteria that help to establish that the data considered represent changes in dust deposition, 43 paleodust records have been identified, with the highest density of dust deposition data occurring in the North Atlantic region. Although the temporal evolution of dust in the North Atlantic appears consistent across several cores and suggest that minimum dust fluxes are likely observed during the Early to mid-Holocene period (6000–8000 years ago), the magnitude of dust fluxes in these observations is not fully consistent, suggesting that more work needs to be done to synthesize datasets for the Holocene. Based on the data compilation, we used the Community Earth System Model to estimate the mass balance and variability of the global dust cycle during the Holocene, with dust load ranging from 17.1 to 20.5 Tg ... |
format |
Article in Journal/Newspaper |
author |
Albani, S Mahowald, N M Winckler, G Anderson, R F Bradtmiller, L I Delmonte, B François, R Goman, M Heavens, N G Hesse, P P Hovan, S A Kang, S G Kohfeld, K E Lu, H Maggi, V Mason, A Mayewski, P A McGee, D Miao, X Otto-Bliesner, L Perry, A T Pourmand, A Roberts, H M Rosenbloom, N Stevens, Thomas Sun, J |
author_facet |
Albani, S Mahowald, N M Winckler, G Anderson, R F Bradtmiller, L I Delmonte, B François, R Goman, M Heavens, N G Hesse, P P Hovan, S A Kang, S G Kohfeld, K E Lu, H Maggi, V Mason, A Mayewski, P A McGee, D Miao, X Otto-Bliesner, L Perry, A T Pourmand, A Roberts, H M Rosenbloom, N Stevens, Thomas Sun, J |
author_sort |
Albani, S |
title |
Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives |
title_short |
Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives |
title_full |
Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives |
title_fullStr |
Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives |
title_full_unstemmed |
Twelve thousand years of dust : the Holocene global dust cycle constrained by natural archives |
title_sort |
twelve thousand years of dust : the holocene global dust cycle constrained by natural archives |
publisher |
Uppsala universitet, Luft-, vatten- och landskapslära |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-258524 https://doi.org/10.5194/cp-11-869-2015 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Climate of the Past, 1814-9324, 2015, 11:6, s. 869-903 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-258524 doi:10.5194/cp-11-869-2015 ISI:000357119900006 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-11-869-2015 |
container_title |
Climate of the Past |
container_volume |
11 |
container_issue |
6 |
container_start_page |
869 |
op_container_end_page |
903 |
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1766130059246043136 |