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 (Du...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2015-06-01
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| Series: | Climate of the Past |
| Online Access: | http://www.clim-past.net/11/869/2015/cp-11-869-2015.pdf |
| _version_ | 1818692206631845888 |
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| author | S. Albani N. M. Mahowald G. Winckler R. F. Anderson L. I. Bradtmiller B. Delmonte R. François M. Goman N. G. Heavens P. P. Hesse S. A. Hovan S. G. Kang K. E. Kohfeld H. Lu V. Maggi J. A. Mason P. A. Mayewski D. McGee X. Miao B. L. Otto-Bliesner A. T. Perry A. Pourmand H. M. Roberts N. Rosenbloom T. Stevens J. Sun |
| author_facet | S. Albani N. M. Mahowald G. Winckler R. F. Anderson L. I. Bradtmiller B. Delmonte R. François M. Goman N. G. Heavens P. P. Hesse S. A. Hovan S. G. Kang K. E. Kohfeld H. Lu V. Maggi J. A. Mason P. A. Mayewski D. McGee X. Miao B. L. Otto-Bliesner A. T. Perry A. Pourmand H. M. Roberts N. Rosenbloom T. Stevens J. Sun |
| author_sort | S. Albani |
| collection | DOAJ |
| 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 (Dust Indicators and Records from
Terrestrial and MArine Palaeoenvironments) paleodust data sets in the last 2 decades provided a benchmark for paleoclimate
models that include the dust cycle, following a time slice approach. We
propose an innovative framework to organize a paleodust data set that builds on the positive experience of DIRTMAP and takes into account new scientific
challenges by providing a concise and accessible data set 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
the investigation of the potential, uncertainties, and confidence level of dust
mass accumulation rate 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, 45 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
suggests 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 data sets for the Holocene. Based on the data
compilation, we used the Community Earth System Model to estimate the mass
balance of and variability in the global dust cycle during the Holocene, with
dust loads ranging from 17.2 to 20.8 Tg between 2000 and 10 000 years ago
and with a minimum in the early to mid-Holocene (6000–8000 years ago). |
| first_indexed | 2024-12-17T12:54:06Z |
| format | Article |
| id | doaj.art-32dc7e0523464df2bc286e3740921a71 |
| institution | Directory Open Access Journal |
| issn | 1814-9324 1814-9332 |
| language | English |
| last_indexed | 2024-12-17T12:54:06Z |
| publishDate | 2015-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Climate of the Past |
| spelling | doaj.art-32dc7e0523464df2bc286e3740921a712022-12-21T21:47:31ZengCopernicus PublicationsClimate of the Past1814-93241814-93322015-06-0111686990310.5194/cp-11-869-2015Twelve thousand years of dust: the Holocene global dust cycle constrained by natural archivesS. Albani0N. M. Mahowald1G. Winckler2R. F. Anderson3L. I. Bradtmiller4B. Delmonte5R. François6M. Goman7N. G. Heavens8P. P. Hesse9S. A. Hovan10S. G. Kang11K. E. Kohfeld12H. Lu13V. Maggi14J. A. Mason15P. A. Mayewski16D. McGee17X. Miao18B. L. Otto-Bliesner19A. T. Perry20A. Pourmand21H. M. Roberts22N. Rosenbloom23T. Stevens24J. Sun25Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, USADepartment of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, USALamont–Doherty Earth Observatory, Columbia University, Palisades, NY, USALamont–Doherty Earth Observatory, Columbia University, Palisades, NY, USADepartment of Environmental Studies, Macalester College, Saint Paul, MN, USADepartment of Environmental Sciences, University of Milano-Bicocca, Milano, ItalyDepartment of Earth and Ocean Sciences, University of British Columbia, Vancouver, BC, CanadaDepartment of Geography and Global Studies, Sonoma State University, Rohnert Park, CA, USADepartment of Atmospheric and Planetary Sciences, Hampton University, Hampton, VA, USADepartment of Environmental Sciences, Macquarie University, Sydney, AustraliaDepartment of Geoscience, Indiana University of Pennsylvania, Indiana, PA, USAState Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, ChinaSchool of Resource and Environmental Management, Simon Fraser University, Burnaby, BC, CanadaSchool of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, ChinaDepartment of Environmental Sciences, University of Milano-Bicocca, Milano, ItalyDepartment of Geography, University of Wisconsin, Madison, WI, USAClimate Change Institute, University of Maine, Orono, ME, USADepartment of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USAIllinois State Geological Survey, Prairie Research Institute, University of Illinois, Champaign, IL, USANational Center for Atmospheric Research, Boulder, CO, USADepartment of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, USADepartment of Marine Geosciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USADepartment of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Wales, UKNational Center for Atmospheric Research, Boulder, CO, USADepartment of Earth Sciences, Uppsala University, Uppsala, SwedenKey laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, ChinaMineral 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 (Dust Indicators and Records from Terrestrial and MArine Palaeoenvironments) paleodust data sets in the last 2 decades provided a benchmark for paleoclimate models that include the dust cycle, following a time slice approach. We propose an innovative framework to organize a paleodust data set that builds on the positive experience of DIRTMAP and takes into account new scientific challenges by providing a concise and accessible data set 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 the investigation of the potential, uncertainties, and confidence level of dust mass accumulation rate 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, 45 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 suggests 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 data sets for the Holocene. Based on the data compilation, we used the Community Earth System Model to estimate the mass balance of and variability in the global dust cycle during the Holocene, with dust loads ranging from 17.2 to 20.8 Tg between 2000 and 10 000 years ago and with a minimum in the early to mid-Holocene (6000–8000 years ago).http://www.clim-past.net/11/869/2015/cp-11-869-2015.pdf |
| spellingShingle | S. Albani N. M. Mahowald G. Winckler R. F. Anderson L. I. Bradtmiller B. Delmonte R. François M. Goman N. G. Heavens P. P. Hesse S. A. Hovan S. G. Kang K. E. Kohfeld H. Lu V. Maggi J. A. Mason P. A. Mayewski D. McGee X. Miao B. L. Otto-Bliesner A. T. Perry A. Pourmand H. M. Roberts N. Rosenbloom T. Stevens J. Sun Twelve thousand years of dust: the Holocene global dust cycle constrained by natural archives Climate of the Past |
| title | 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_short | 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 |
| url | http://www.clim-past.net/11/869/2015/cp-11-869-2015.pdf |
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