Dôme du Goûter, France Glacier 8,000 Year Geochemistry and Dust Data Legrand, M.; McConnell, J.R.; Preunkert, S.; Chellman, N.; Wensman, S.M. Legrand, M. McConnell, J.R. Preunkert, S. Chellman, N. Wensman, S.M. Little Ice Age (LIA) Medieval Climate Anomaly (MCA) Other Reconstruction earth science/paleoclimate/ice cores (depth,null,null,meter,null,ice cores,null,null,N,core depth (sample midpoint); meter water equivalent) earth science/paleoclimate/ice cores (sulfate,bulk ice,null,microequivalent per liter,null,ice cores,null,continuous flow analysis|inductively-coupled plasma mass spectrometry,N,ICPMS measured as S; nssSO4) earth science/paleoclimate/ice cores (delta 18O,bulk ice,null,per mil,null,ice cores,null,continuous flow analysis,N,continuous flow analysis (CRDS)) earth science/paleoclimate/ice cores (ammonium,bulk ice,null,parts per billion,null,ice cores,null,continuous flow analysis,N,continuous flow analysis (colorimetry)) earth science/paleoclimate/ice cores (age at sample end,null,null,year Common Era,null,ice cores,null,null,N,age at top of sample) earth science/paleoclimate/ice cores (calcium,bulk ice,null,parts per billion,null,ice cores,null,continuous flow analysis|inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/ice cores (aluminum,bulk ice,null,parts per billion,null,ice cores,null,continuous flow analysis|inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/ice cores (strontium,bulk ice,null,parts per billion,null,ice cores,null,continuous flow analysis|inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/ice cores (depth,null,null,meter,null,ice cores,null,null,N,core depth (sample midpoint)) earth science/paleoclimate/ice cores (calcium,bulk ice,null,microequivalent per liter,null,ice cores,null,continuous flow analysis|inductively-coupled plasma mass spectrometry,N,core depth (sample midpoint)) earth science/paleoclimate/ice cores (age at sample start,null,null,year Common Era,null,ice cores,null,null,N,age at bottom of sample) earth science/paleoclimate/ice cores (dust,bulk ice,null,parts per billion,null,ice cores,null,continuous flow analysis,N,continuous flow analysis (LLS)) earth science/paleoclimate/ice cores (hydrogen carbonate,bulk ice,null,microequivalent per liter,null,ice cores,null,null,N,calculated) earth science/paleoclimate/ice cores (hydrogen carbonate,bulk ice,null,microequivalent per liter,null,ice cores,null,null,N,calculated HCO3) earth science/paleoclimate/ice core (Dome du Gouter>LATITUDE 45.84>LONGITUDE 6.84) Transport of Saharan dust over Europe impacts climate and nutrient input to ecosystems, but the magnitude and frequency of past events are poorly understood. Because Alpine ice potentially provides an archive of past dust deposition, here we used an ice core record of stable water isotopes and dust-related chemical species from Dôme du Goûter (DDG, French Alps) to assess past climate and dust deposition in western Europe over the past 8,000 years. The DDG chemical records including calcium, a potential good proxy of Saharan dust, show a dust increase associated with Saharan aridification following the African Humid Period some 3,600 years ago. The more recent records spanning the last two millennia indicate warmer, drier, and dustier conditions during the Roman, Medieval, and Modern periods than during the Little Ice Ages, thereby elucidating a generally consistent relationship between Saharan dust deposition over western Europe and past climate. STUDY NOTES: Ice core samples of S, Ca, Sr, and Al, were analyzed with the continuous flow ice core analytical system at the Desert Research Institute Ultra Trace Chemistry Laboratory, using two inductively coupled plasma mass spectrometers operating in parallel. Detection limits defined as three times the standard deviation of the blank were 0.06, 0.24, and 0.18 ng g-1 for S, Ca, and Al, respectively, and 0.75 pg g-1 for Sr. A Picarro analyser was used for d18O (detection limit 0.15‰). Insoluble particle concentrations nominally ranging from 0.8 to 10.0 µm were measured using a laser based Abakus particle counter (detection limit 0.05 µg g-1). NH4 (detection limit 0.50 µg g-1 (as N)) was measured with a colorimetric method. The alkalinity was estimated as [HCO3-] = ([Na+] + [NH4+] + [Mg2+] + [Ca2+]) - ([Cl-] + [NO3-] + [SO42-]). Provided Keywords: Alpine ice core, Saharan dust, Africa Humid Period, green Sahara, Holocene NCEI-Paleoclimatology https://www.ncei.noaa.gov/products/paleoclimatology - NOAA World Data Service for Paleoclimatology Investigator : Legrand, M. Investigator : McConnell, J.R. Investigator : Preunkert, S. Investigator : Chellman, N. Investigator : Wensman, S.M. 2026-06-01 ONLINE Files online, ASCII https://www.ncei.noaa.gov/access/paleo-search/study/44800 https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-raw8k.txt https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-raw2k.txt https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-avg.txt https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-raw8k.txt https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-raw2k.txt https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-avg.txt English https://www.ncei.noaa.gov/access/paleo-search/study/44800 https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-raw8k.txt https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-raw2k.txt https://www.ncei.noaa.gov/pub/data/paleo/icecore/europe/legrand2026/legrand2026-gouter-avg.txt Michel Legrand, Joseph R. McConnell, Francois Dulac, Susanne Preunkert, Nathan J. Chellman, Karine Desboeufs, Sophia M. Wensman, and Gilles Bergametti2026An 8,000 Years Alpine Ice-Core Record of Climate and Dust: The Role of Saharan DustGeophysical Research Letters53e2026GL12378710.1029/2026GL123787 START YEAR: -5700 CE * END YEAR: 1997 CE 6.84 45.84 6.84 45.84