NOAA/WDS Paleoclimatology - Folgefonna, Western Norway 6,000 Year Glacial Lake Sediment Data and ELA Reconstruction
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 climate reconstructions|paleolimnology with a geographic location of Norway, Scandanavia. The time period coverage is from 5932 to 19 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: Bakke, J.; Lie, O.; Nesje, A.; Dahl, S.O.; Paasche, O. (2006-03-01): NOAA/WDS Paleoclimatology - Folgefonna, Western Norway 6,000 Year Glacial Lake Sediment Data and ELA Reconstruction. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/5z64-c713. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/5z64-c713
- noaa-lake-5449
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-lake-5449
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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: 5932 cal yr BP to 19 cal yr BP; |
Time Period | -3982 to 1931 |
Spatial Bounding Box Coordinates |
N: 60.35
S: 60.25
E: 6.98
W: 6.45
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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: The two glacial-fed lakes were cored using a modified piston corer taking up to 6 m long cores with diameter 110 mm.
ABSTRACT SUPPLIED BY ORIGINATOR: The maritime plateau glacier of northern Folgefonna in western Norway has a short (subdecadal) response time to climatic shifts, and is therefore well suited for reconstructing high-resolution glacier fluctuations. The reconstruction presented here is based on physical parameters of glaciolacustrine sediments retrieved from two glacier-fed lakes and a peat bog north of the ice cap. Bulk density and modelled glacier net mass balance for the last 200 years show a remarkably similar pattern, where maximum sediment yield lags the glacier net mass balance by~10 years. The record of glacier variations has been transferred into an equilibrium- line altitude (ELA) variation curve. Glaciers respond primarily to changes in summer temperature and winter precipitation. At present there is a high correlation between the North Atlantic Oscillation (NAO) index and measured (since the early 1960s) net mass balance on maritime glaciers in western Norway (r= ~0.8). Reconstructed glacier variations from maritime western Norway are therefore considered indicative of the strength of the westerly airflow associated with NAO during the Holocene. The early phase of mid-Holocene glacier growth (5200 cal. yr BP) was characterized by gradual glacier expansion culminating in the first Subatlantic glacial event at 2300 cal. yr BP. The climate during the last 2200 years has favoured increased glacier activity at Folgefonna. High-amplitude shifts in ELA may be explained by unstable modes of the westerlies causing significant variability of winter precipitation. During the last 2000 years, Folgefonna expanded and decayed with significant decadal variability. During the latest period of the 'Mediaeval Warm Epoch', Folgefonna advanced. The Neoglacial maximum, however, was reached during the 'Little Ice Age' at AD 1750 and AD 1870. The northern Folgefonna glacial record is compared to other Holocene glacier records in Scandinavia. |
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: 2023-12-27
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