PP21C:
Spatial and Temporal Variability of Dust Emissions and Transport: Importance of High-Latitude Sources and Insights from Paleodust Archives II Posters

Submit an Abstract to this Session



Session ID#: 31227

Session Description:
Mineral dust is a major component of the global aerosol load. Dust emissions are influenced by climate change, and dust, in turn, affects climate and biogeochemical cycles. Dust is an uncertain component of the climate system, because of the spatial and temporal variability of dust emissions and transport, as well as particle size distributions and size-dependent physical and chemical properties. Natural archives potentially allow for quantitative reconstructions of the global dust cycle, especially when measurements of mass accumulation rates are paired with particle size distributions. Dust delivered to the high latitudes is of particular interest because of its role in the oceans' biogeochemical cycles, hence the interest to understanding its provenance and transport. We invite contributions aimed at building up a quantitative observational reference framework from paleodust archives globally, and elucidating the dynamics and impacts of the dust cycle at high latitudes, from both the observational and modeling communities.
Primary Convener:  Samuel Albani, CNRS, Gif-sur-Yvette, France
Conveners:  Stuart M Evans, Princeton Environmental Institute, Princeton, NJ, United States, Gisela Winckler, Lamont-Doherty Earth Observatory of Columbia University, Palisades, United States and Bradley R Markle, California Institute of Technology, Pasadena, CA, United States
Chairs:  Bradley R Markle, California Institute of Technology, Pasadena, CA, United States, Samuel Albani, CNRS, Gif-sur-Yvette, France, Stuart M Evans, Princeton Environmental Institute, Princeton, NJ, United States and Gisela Winckler, Lamont-Doherty Earth Observatory, Palisades, United States
OSPA Liaison:  Stuart M Evans, Princeton Environmental Institute, Princeton, NJ, United States
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3344 Paleoclimatology [ATMOSPHERIC PROCESSES]
4904 Atmospheric transport and circulation [PALEOCEANOGRAPHY]
4914 Continental climate records [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

Understanding the dust cycle at high latitudes: integrating models and observations (Invited) (207156)
Samuel Albani, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, Natalie M Mahowald, Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, Valter Maggi, Istituto Nazionale di Fisica Nucleare, Sezione di Milano-Bicocca, Milano, Italy, Barbara Delmonte, EUROCOLD Laboratory-DISAT-University Milano-Bicocca, Milan, Italy, Gisela Winckler, Columbia U. / LDEO, Palisades, NY, United States, Marco A C Potenza, University of Milan, Department of Physics, Milan, Italy, Giovanni Baccolo, National Institute of Nuclear Physics (INFN), Section of Milano-Bicocca, Milan, Italy and Yves Balkanski, LSCE, CEA CNRS UVSQ, Gif-Sur-Yvette Cedex, France
Cross-system nutrient transport: effects of locally-derived aeolian dust on oligotrophic lakes in West Greenland (Invited) (209962)
Joanna E Bullard, Loughborough University, Geography, Leicestershire, UNITED KINGDOM, N. John Anderson, Loughborough University, Geography, Loughborough, United Kingdom, Suzanne McGowan, Nottingham University, Geography, Nottingham, United Kingdom, Clay Prater, Oklahoma State University, Department of Integrative Biology, Stillwater, United States, Michael Watts, British Geological Survey, Keyworth, Nottingham, United Kingdom and Erika Whitford, Nottingham Trent University, Nottingham, United Kingdom
Reconstructed plutonium fallout in the GV7 firn core from Northern Victoria Land, East Antarctica (223281)
Heejin Hwang1, Yeongcheol Han1, Jungho Kang2, Khanghyun Lee3, Sangbum Hong2, Soon Do Hur1, Biancamaria Narcisi4 and Massimo Frezzotti5, (1)Korea Polar Research Institute, Incheon, South Korea, (2)KOPRI Korea Polar Research Institute, Incheon, Korea, Republic of (South), (3)Korea Polar Research Institute, Incheon, Korea, Republic of (South), (4)ENEA National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy, (5)University of Roma 3, Rome, Italy
Regional contributions of ocean iron fertilization to atmospheric CO2 changes during the last glacial termination (226741)
Natalia Estefania Opazo and Fabrice Lambert, Pontificia Universidad Católica de Chile, Instituto de Geografia, Macul, Chile
New Zealand as a Potential Source of Mineral Dust to the Atmosphere and Ocean during Glacial Periods (236256)
Bess G Koffman1, Steven L Goldstein2, Gisela Winckler3, Michael R Kaplan2, Louise Bolge4, Yue Cai5, Cristina Recasens6 and Tobias Nicholas Buttersworth Koffman7, (1)Dartmouth College, Earth Sciences, Hanover, NH, United States, (2)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Columbia U. / LDEO, Palisades, NY, United States, (4)Columbia University of New York, Palisades, United States, (5)Lamont-Doherty Earth Observatory, Palisades, United States, (6)Columbia University, Palisades, NY, United States, (7)Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States
WRF-Chem Model Simulations of Arizona Dust Storms (236985)
Amin Mohebbi, Northern Arizona University, Department of Civil Engineering, Construction Management, and Environmental Engineering, Flagstaff, AZ, United States, Hsin-I Chang, Univ of AZ-Atmos Sciences, Tucson, AZ, United States and David Hondula, Arizona State University, School of Geographical Sciences and Urban Planning, Tempe, AZ, United States
Reconstructing dust fluxes and paleoproductivity at the southern Agulhas Plateau since MIS-6 (246580)
Megan Maria Frenkel1,2, Robert F Anderson3,4 and Gisela Winckler1,3, (1)Columbia University of New York, Earth and Environmental Sciences, New York, NY, United States, (2)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Lamont-Doherty Earth Observatory, Palisades, United States, (4)Columbia University of New York, Earth and Environmental Sciences, Palisades, NY, United States
African Dust Transport Captured by Rare Earth Elemental Concentrations in Coral Microatolls (259604)
Gilman Ouellette Jr, Louisiana State University, Geography & Anthropology, Baton Rouge, LA, United States, Dr. Kristine L DeLong, Ph.D., Louisiana State University, Paleoclimate and Anthropology Studies Laboratory, Department of Geography & Anthropology, Baton Rouge, LA, United States, Achim Herrmann, Louisiana State University, Herrmann Laboratory, Department of Geology & Geophysics, Baton Rouge, LA, United States, Chun-Yuan Huang, National Taiwan University, High‐precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, Taipei, Taiwan and Chun-Yuan Huang, High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, Taiwan
Tracking dust deposition around the North Pacific Gyre over the past 500kyr (262976)
Kassandra Costa, Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, United States, Jerry F McManus, Columbia U. / LDEO, Palisades, United States, Gisela Winckler, Columbia U. / LDEO, Palisades, NY, United States, Robert F Anderson, Columbia University & Lamont-Doherty Earth Observatory, Palisades, NY, United States, Jennifer L Middleton, Harvard University, Earth and Planetary Sciences, Cambridge, United States and Sujoy Mukhopadhyay, Harvard Univ, Cambridge, United States
Annually resolved Holocene record of dust deposition and size distribution from the South Pole (281365)
Aaron Chesler1,2, Bess G Koffman3,4, Karl J Kreutz5,6, Erich C Osterberg7, Dominic Winski7, David G Ferris Mr.8, Jihong Cole-Dai9, Mark L Wells10 and Michael Handley11, (1)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (2)University of Maine, Climate Change Institute, Orono, United States, (3)Dartmouth College, Earth Sciences, Hanover, NH, United States, (4)Colby College, Department of Geology, Waterville, United States, (5)University of Maine, School of Earth and Climate Sciences and Climate Change Institute, Orono, ME, United States, (6)University of Maine, Climate Change Institute and School of Earth and Climate Sciences, Orono, ME, United States, (7)Dartmouth College, Department of Earth Sciences, Hanover, United States, (8)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (9)South Dakota State University, Department of Chemistry and Biochemistry, Brookings, SD, United States, (10)University of Maine, School of Marine Sciences, Orono, United States, (11)University of Maine, Climate Change Institute, Orono, ME, United States
A dust record from Permo-Pennsylvanian shallow-water carbonates of Iran: Glacial-interglacial variation proximal to the Gondwanan ice sheets (288899)
Mehrdad Abadi and Gerilyn S Soreghan, School of Geology and Geophysics, Norman, OK, United States
Characterization of Dust Emissions from an Actively Retreating Glacier (296608)
James King, Université de Montréal, Département de géographie, Montréal, QC, Canada

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