NOAA/WDS Paleoclimatology - Bruce Plateau, Antarctic Peninsula 100yr Ice Core d18O and Accumulation
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 Ice Core. The data include parameters of ice cores with a geographic location of Antarctica. The time period coverage is from 50 to -59 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
Dataset Citation
- Cite as: Goodwin, B.P.; Mosley-Thompson, E.; Wilson, A.B.; Porter, S.E.; Sierra-Hernández, M.R. (2016-07-22): NOAA/WDS Paleoclimatology - Bruce Plateau, Antarctic Peninsula 100yr Ice Core d18O and Accumulation. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/jgx6-2320. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/jgx6-2320
- noaa-icecore-20350
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-icecore-20350
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
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: 1900 CE to 2009 CE; Date Range: 50 cal yr BP to -59 cal yr BP; |
Time Period | 1900 to 2009 |
Spatial Bounding Box Coordinates |
West: -64.078
East: -64.078
South: -66.038
North: -66.038
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information | STUDY NOTES: Antarctic Peninsula oxygen isotope (d18O) and accumulation rate data from an ice core drilled on Bruce Plateau. ABSTRACT SUPPLIED BY ORIGINATOR: A new ice core drilled in 2010 to bedrock from the Bruce Plateau (BP) on the Antarctic Peninsula (AP) provides a high temporal resolution record of environmental conditions in this region. The extremely high annual accumulation rate at this site facilitates analysis of the relationships between annual net accumulation An on the BP and large-scale atmospheric oscillations. Over the last ~45 years, An on the BP has been positively correlated with both the southern annular mode (SAM) and Southern Oscillation index (SOI). Extending this analysis back to 1900 reveals that these relationships are not temporally stable, and they exhibit major shifts in the late-1940s and the mid-1970s that are contemporaneous with phase changes in the Pacific decadal oscillation (PDO). These varying multidecadal characteristics of the An-oscillation relationships are not apparent when only data from the post-1970s era are employed. Analysis of the longer ice core record reveals that the influence of the SAM on An depends not only on the phase of the SAM and SOI but also on the phase of the PDO. When the SAM's influence on BP An is reduced, such as under negative PDO conditions, BP An is modulated by variability in the tropical and subtropical atmosphere through its impacts on the strength and position of the circumpolar westerlies in the AP region. These results demonstrate the importance of using longer-term ice core-derived proxy records to test conventional views of atmospheric circulation variability in the AP region. |
Purpose | Records of past temperature, precipitation, atmospheric trace gases, and other aspects of climate and environment derived from ice cores drilled on glaciers and ice caps around the world. 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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Global Change Master Directory (GCMD) Science Keywords
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Global Change Master Directory (GCMD) Data Center Keywords
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Last Modified: 2023-09-01
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov