noaa-lake-15229 Liverpool Land, East Greenland Holocene Lake Sediment LOI Data Lusas, A.R.; Hall, B.L.; Lowell, T.V.; Kelly, M.A.; Bennike, O.; Levy, L.B.; Honsaker, W. Liverpool Land, East Greenland Holocene Lake Sediment LOI Data 2013-10-23 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/15229 Investigator A.R. Lusas Investigator B.L. Hall Investigator T.V. Lowell Investigator M.A. Kelly Investigator O. Bennike Investigator L.B. Levy Investigator W. Honsaker earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology organic matter,sediment,null,weight percent,null,paleolimnology,null,loss on ignition,N,loss on ignition at 550 degrees C earth science paleoclimate paleolimnology physical properties geoscientificInformation 10000 cal yr BP 0 cal yr BP Complete 70.883583 70.887788 -22.27885 -22.26664 419 447 Continent North America Greenland Bone Lake>LATITUDE 70.887788>LONGITUDE -22.26664 Continent North America Greenland Round Lake>LATITUDE 70.883583>LONGITUDE -22.26888 Continent North America Greenland Snowbank Pond>LATITUDE 70.8861>LONGITUDE -22.27885 Continent North America Greenland Emerald Pond>LATITUDE 70.8839>LONGITUDE -22.2759 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 Amanda R. Lusas, Brenda L. Hall, Thomas V. Lowell, Meredith A. Kelly, Ole Bennike, Laura B. Levy, William Honsaker 2017 Journal of Paleolimnology 57 4 321-341 10.1007/s10933-017-9951-5 https://link.springer.com/article/10.1007/s10933-017-9951-5

Prediction of future Arctic climate and environmental changes, as well as associated ice-sheet behavior, requires placing present-day warming and reduced ice extent into a long-term context. Here we present a record of Holocene climate and glacier fluctuations inferred from the paleolimnology of small lakes near Istorvet ice cap in East Greenland. Calibrated radiocarbon dates of organic remains indicate deglaciation of the region before ~10,500 years BP, after which time the ice cap receded rapidly to a position similar to or less extensive than present, and lake sediments shifted from glacio-lacustrine clay to relatively organic-rich gyttja. The lack of glacio-lacustrine sediments throughout most of the record suggests that the ice cap was similar to or smaller than present throughout most of the Holocene. This restricted ice extent suggests that climate was similar to or warmer than present, in keeping with other records from Greenland that indicate a warm early and middle Holocene. Middle Holocene magnetic susceptibility oscillations, with a ~200-year frequency in one of the lakes, may relate to solar influence on local catchment processes. Following thousands of years of restricted extent, Istorvet ice cap advanced to within 365 m of its late Holocene limit at ~AD 1150. Variability in the timing of glacial and climate fluctuations, as well as of sediment organic content changes among East Greenland lacustrine records, may be a consequence of local factors, such as elevation, continentality, water depth, turbidity, and seabirds, and highlights the need for a detailed spatial array of datasets to address questions about Holocene climate change. STUDY NOTES: Loss-on-ignition data (550C burn) for 4 Liverpool Land, East Greenland, sediment cores

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014emrd10-1b-1n.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014snwb10-1a.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014bone10-1a.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014round10-1b-1n.txt USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11