NOAA/WDS Paleoclimatology - South Pole Late Twentieth Century Deuterium Isotope 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 Ice Core. The data include parameters of ice cores with a geographic location of Antarctica. The time period coverage is from -27 to -62 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: Turney, C.S.M.; Fogwill, C.J.; Klekociuk, A.; van Ommen, T.D.; Curran, M.A.J.; Moy, A.D.; Palmer, J.G. (2017-03-29): NOAA/WDS Paleoclimatology - South Pole Late Twentieth Century Deuterium Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/rkq2-x168. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/rkq2-x168
- noaa-icecore-21790
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-icecore-21790
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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: 1977 CE to 2012 CE; Date Range: -27 cal yr BP to -62 cal yr BP; |
Time Period | 1977 to 2012 |
Spatial Bounding Box Coordinates |
N: -90
S: -90
E: 0
W: 0
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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: Late twentieth century isotope (deuterium) record from geographic South Pole. Extension of record reported by Jouzel et al., 1983 (Journal of Geophysical Research 88, 2693-2703)
ABSTRACT SUPPLIED BY ORIGINATOR: Future changes in atmospheric circulation and associated modes of variability are a major source of uncertainty in climate projections. Nowhere is this issue more acute than across the mid-latitudes to high latitudes of the Southern Hemisphere (SH), which over the last few decades have experienced extreme and regionally variable trends in precipitation, ocean circulation and temperature, with major implications for Antarctic ice melt and surface mass balance. Unfortunately there is a relative dearth of observational data, limiting our understanding of the driving mechanism(s). Here we report a new 130-year annually resolved record of dD - a proxy for temperature - from the geographic South Pole where we find a significant influence from extratropical pressure anomalies which act as "gatekeepers" to the meridional exchange of air masses. Reanalysis of global atmospheric circulation suggests these pressure anomalies play a significant influence on mid- to high-latitude SH climate, modulated by the tropical Pacific Ocean. This work adds to a growing body of literature confirming the important roles of tropical and mid-latitude atmospheric circulation variability on Antarctic temperatures. Our findings suggest that future increasing tropical warmth will strengthen meridional circulation, exaggerating current trends, with potentially significant impacts on Antarctic surface mass balance. |
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: 2024-03-21
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