NOAA/WDS Paleoclimatology - Plateau Remote, Antarctica d18O Data during the last 4000 years
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 3955 to 5 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: Mosley-Thompson, E. (2020-04-15): NOAA/WDS Paleoclimatology - Plateau Remote, Antarctica d18O Data during the last 4000 years. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/kyrn-9t19. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/kyrn-9t19
- noaa-icecore-30353
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-icecore-30353
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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: 3955 cal yr BP to 5 cal yr BP; |
Time Period | -2005 to 1945 |
Spatial Bounding Box Coordinates |
N: -84
S: -84
E: 43
W: 43
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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: This dataset was contributed as part of the Temperature-12k project (https://doi.org/10.25921/4RY2-G808). Data were contributed to the project from the original data generators, who are listed in the Investigator field of this template file. Additional notes regarding the use of these data in the Temperature-12k project can be found in the LiPD file listed as an Online_Resource of this template file.
ABSTRACT SUPPLIED BY ORIGINATOR: Ice core derived proxy climate records from Antarctica suggest that decadal, century and possibly even millennial-scale temperature variations in East and West Antarctica may be temporally asynchronous. For example, records from the Antarctic Peninsula indicate a strong 20th century warming in which the high plateau of East Antarctica has not participated. Similarly, a recent Neoglacial cooling, the “Little Ice Age”, was prominent in East Antarctica, but absent in the Peninsula region. A new history of oxygen isotopic ratios (δ18O) and atmospheric dust concentrations from central East Antarctica suggests that the high inland plateau has been dominated by a cooling trend for the last 4000 years. Superimposed upon this isotopically-inferred cooling were a number of warmer events, the largest and most persistent of which occurred ≈ 3600 yr. BP and lasted several centuries. The most prominent event is a prolonged cold phase around 2200 yr. BP which is correlative with a mid-Neoglacial advance on South Georgia Island (Clapperton et al, 1989). Most intriguing are several shorter-term (multi-centennial scale) δ18O oscillations which are similar in magnitude to the glacial-interglacial transition in Antarctic ice cores. Although it is impossible to discount the effect of wind scouring and re-deposition in this low snow accumulation region, this 4000-year history raises important questions about the climate history on the high inland plateau during the last half of the Holocene. Certainly, a better spatial distribution of high resolution δ18O records from East Antarctica are necessary to determine the extent to which the Plateau Remote record is spatially representative. |
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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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: 2023-09-01
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