中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Twelve thousand years of dust: the Holocene global dust cycle constrained by natural archives

文献类型:期刊论文

作者Winckler, G.6,7; Mahowald, N. M.5; Albani, S.1,5; Kohfeld, K. E.15; Roberts, H. M.2; Rosenbloom, N.21; Stevens, T.4; Sun, J.3; Pourmand, A.22; Perry, A. T.5
刊名CLIMATE OF THE PAST
出版日期2015
卷号11期号:6页码:869-903
ISSN号1814-9324
DOI10.5194/cp-11-869-2015
文献子类Article
英文摘要

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).

WOS关键词Chinese Loess Plateau ; Last Glacial Maximum ; Greenland Ice Core ; East-asian Monsoon ; Late Quaternary Loess ; Central Great-plains ; Grain-size Records ; Deep-sea Sediments ; Past 800,000 Years ; High-resolution
WOS研究方向Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000357119900006
出版者COPERNICUS GESELLSCHAFT MBH
源URL[http://ir.ieecas.cn/handle/361006/9295]  
专题地球环境研究所_黄土与第四纪地质国家重点实验室(2010~)
通讯作者Albani, S.
作者单位1.Univ Milano Bicocca, Dept Environm Sci, Milan, Italy
2.Aberystwyth Univ, Dept Geog & Earth Sci, Aberystwyth SY23 3FG, Dyfed, Wales
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
4.Uppsala Univ, Dept Earth Sci, Uppsala, Sweden
5.Cornell Univ, Dept Earth & Atmospher Sci, Ithaca, NY 14850 USA
6.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA
7.Columbia Univ, Dept Earth & Environm Sci, New York, NY USA
8.Macalester Coll, Dept Environm Studies, St Paul, MN 55105 USA
9.Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V5Z 1M9, Canada
10.Sonoma State Univ, Dept Geog & Global Studies, Rohnert Pk, CA 94928 USA
推荐引用方式
GB/T 7714
Winckler, G.,Mahowald, N. M.,Albani, S.,et al. Twelve thousand years of dust: the Holocene global dust cycle constrained by natural archives[J]. CLIMATE OF THE PAST,2015,11(6):869-903.
APA Winckler, G..,Mahowald, N. M..,Albani, S..,Kohfeld, K. E..,Roberts, H. M..,...&Anderson, R. F..(2015).Twelve thousand years of dust: the Holocene global dust cycle constrained by natural archives.CLIMATE OF THE PAST,11(6),869-903.
MLA Winckler, G.,et al."Twelve thousand years of dust: the Holocene global dust cycle constrained by natural archives".CLIMATE OF THE PAST 11.6(2015):869-903.

入库方式: OAI收割

来源:地球环境研究所

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