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. Lusas, A.R. Hall, B.L. Lowell, T.V. Kelly, M.A. Bennike, O. Levy, L.B. Honsaker, W. 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 (Bone Lake>LATITUDE 70.887788>LONGITUDE -22.26664) (Round Lake>LATITUDE 70.883583>LONGITUDE -22.26888) (Snowbank Pond>LATITUDE 70.8861>LONGITUDE -22.27885) (Emerald Pond>LATITUDE 70.8839>LONGITUDE -22.2759) 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 NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Lusas, A.R. Investigator : Hall, B.L. Investigator : Lowell, T.V. Investigator : Kelly, M.A. Investigator : Bennike, O. Investigator : Levy, L.B. Investigator : Honsaker, W. 2013-10-23 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/15229 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014emrd10-1b-1n.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014snwb10-1a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014bone10-1a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014round10-1b-1n.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014emrd10-1b-1n.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014snwb10-1a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014bone10-1a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014round10-1b-1n.txt English https://www.ncdc.noaa.gov/paleo/study/15229 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014emrd10-1b-1n.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014snwb10-1a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014bone10-1a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/liverpool2014round10-1b-1n.txt Amanda R. Lusas, Brenda L. Hall, Thomas V. Lowell, Meredith A. Kelly, Ole Bennike, Laura B. Levy, William Honsaker2017Holocene climate and environmental history of East Greenland inferred from lake sedimentsJournal of Paleolimnology574321-34110.1007/s10933-017-9951-5https://link.springer.com/article/10.1007/s10933-017-9951-5 START YEAR: 10000 cal yr BP * END YEAR: 0 cal yr BP -22.27885 70.883583 -22.26664 70.887788