NOAA/WDS Paleoclimatology - Sikuiui Lake, Greenland 9,400 Year Sediment Physical Properties Data
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Lake. The data include parameters of paleolimnology with a geographic location of Greenland. The time period coverage is from 9433 to 82 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
- Cite as: Schweinsberg, A.D.; Briner, J.P.; Miller, G.H.; Bennike, O.; Thomas, E.K. (2017-01-09): NOAA/WDS Paleoclimatology - Sikuiui Lake, Greenland 9,400 Year Sediment Physical Properties Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/ngyf-3778. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/ngyf-3778
- noaa-lake-21410
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-lake-21410
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Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact
NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 9433 cal yr BP to 82 cal yr BP; |
Time Period | -7483 to 1868 |
Spatial Bounding Box Coordinates |
N: 70.21106
S: 70.21106
E: -51.12485
W: -51.12485
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Spatial Coverage Map |
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information |
STUDY NOTES: Sediment physical properties (LOI, MS, ITRAX XRF) data from core 13MCR-D3, Sikuiui Lake, Nuussuaq, western Greenland for the past 9,400 years, plus glacier-killed vegetation data from West Greenland
ABSTRACT SUPPLIED BY ORIGINATOR: Recent observations indicate that ice-ocean interaction drives much of the recent increase in mass loss from the Greenland Ice Sheet; however, the role of ocean forcing in driving past glacier change is poorly understood. To extend the observational record and our understanding of the ocean-cryosphere link, we used a multi-proxy approach that combines new data from proglacial lake sediments, 14C-dated in situ moss that recently emerged from beneath cold-based ice caps, and 10Be ages to reconstruct centennial-scale records of mountain glacier activity for the past ~10 k.y. in West Greenland. Proglacial lake sediment records and 14C dating of moss indicate the onset of Neoglaciation in West Greenland at ca. 5 ka with substantial snowline lowering and glacier expansion at ca. 3.7 ka followed by additional ice expansion phases at ca. 2.9, ca. 1.7, and ca. 1.4 ka and during the Little Ice Age. We find that widespread glacier growth at ca. 3.7 ka in West Greenland coincides with marked cooling and reduced strength of the West Greenland Current in Disko Bugt. The transition to cooler ocean conditions at ca. 3.7 ka identified in Disko Bugt is registered by marine proxy data farther afield in East Greenland and on the northwestern Icelandic shelf, implying large-scale paleoceanographic changes across the North Atlantic during this interval. The similarity between glacier change on West Greenland and multiple marine and terrestrial records across the North Atlantic suggests that glaciers are strongly influenced by changes in ocean circulation and consequently implies that the ocean-cryosphere teleconnection is a persistent feature of the Arctic system. |
Purpose | Records of past climate and environment derived from lake sediment records. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Last Modified: 2024-03-15
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