noaa-loess-20529 Global Holocene Paleodust Database Albani, S. Global Holocene Paleodust Database 2016-08-19 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20529 Investigator S. 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Complete -90 90 -180 180 Geographic Region Global Global>LATITUDE >LONGITUDE None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII 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, and J. Sun 2015 Climate of the Past 11 6 869-903 10.5194/cp-11-869-2015 http://www.clim-past.net/11/869/2015/cp-11-869-2015.html

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). STUDY NOTES: Mineral dust data (dust mass accumulation rates and particle grain size distributions) derived from a global set of 45 ice core, marine sediment, loess-paleosol, lake sediment, and peat bog records. The site table below lists locations, confidence level, and presence/absence of grain size information. Site Lon (0-360E) Lat Confidence SizeData? EDC 123.35 -75.1 high yes Vostok-BH7 106.8 -78.47 high yes GISP2 322.37 72.58 medium no EN06601-0038PG 339.502 4.918 high no EN06601-0021PG 339.375 4.233 high no EN06601-0029PG 340.238 2.46 high no RC24-12 348.583 -3.01 high no RC24-07 348.083 -1.333 high no RC24-01 346.35 0.55 high no V22-182 342.73 -0.53 high no V30-40 336.85 -0.2 high no OC437-07-GC27 349.37 30.88 medium yes OC437-07-GC37 344.882 26.816 high yes OC437-07-GC49 342.146 23.206 high yes OC437-07-GC66 342.14 19.944 medium yes OC437-07-GC68 342.718 19.363 high yes PS2498-1 345.18 -44.25 medium no RC27-42 59.8 16.5 high no 93KL 64.22 23.58 medium no ODP138-848B-1H-1 249 -3 medium no ODP138-849A-1H-1 249 0.1833 medium no ODP138-850A-1H-1 249 1.3 medium no ODP138-851E-1H-1 249 2.7667 medium no ODP138-852A-1H-1 250 5.3 medium no ODP138-853B-1H-1 250 7.2167 medium no TT013-PC72 220 0 high no TT013-MC27 220 -3 high no TT013-MC69 220 2 high no TT013-MC97 220 0 high no TT013-MC19 220 -1.8 high no V28-203 180.58 0.95 high no V21-146 163 38 medium yes SO-14-08-05 118.38 -16.35 medium no E26.1 168.33 -40.28 medium yes Zagoskin_Lake 197.9 63 medium yes Chitina 215.62 61.54 medium yes Duowa 102.63 35.65 medium no Jiuzhoutai 103.75 36.07 medium no Jingyuan 104.6 36.35 medium yes Beiguoyuan 107.28 36.62 medium yes Xifeng 107.72 35.53 medium yes Luochuan 109.42 35.75 medium no Weinan 109.58 34.43 medium yes OWR 258.58 40.5 medium yes LRC 259.81 41.48 medium yes

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/loess/albani2015/ Data Folder; Dust Mass Accumulation Rate (MAR), Grain Size (GS), and Size Class Data Files USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11