NOAA/WDS Paleoclimatology - Dunde Ice Core 1500 Year d18O, Dust, Anion, and Accumulation 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 China, Eastern Asia. The time period coverage is from 1430 to -30 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: Thompson, L.G.; Mosley-Thompson, E.; Brecher, H.H.; Davis, M.E.; Leon, B.; Les, D.; Lin, P-N.; Mashiotta, T.A.; Mountain, K.R. (2012-05-21): NOAA/WDS Paleoclimatology - Dunde Ice Core 1500 Year d18O, Dust, Anion, and Accumulation Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/s6v0-vz77. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/s6v0-vz77
- noaa-icecore-12942
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-icecore-12942
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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: 520 CE to 1980 CE; Date Range: 1430 cal yr BP to -30 cal yr BP; |
Time Period | 520 to 1980 |
Spatial Bounding Box Coordinates |
West: 96.4
East: 96.4
South: 38.1
North: 38.1
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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: Dunde ice core oxygen isotopes, dust, major anions (chloride, nitrate, sulfate), decadal averages from ~500 A.D.-1987 A.D. Five year averages of net balance (accumulation) in water equivalent from 1606 to 1984 A.D. Note: The Core 3 decadal averages of dust and major ions (chloride, nitrate and sulfate) have not been published, but are included here. core location: Dunde Ice Cap, NE Tibetan Plateau: 38°06'N, 96°24'E, 5325 masl ABSTRACT SUPPLIED BY ORIGINATOR: Three lines of evidence for abrupt tropical climate change, both past and present, are presented. First, annually and decadally averaged δ18O and net mass-balance histories for the last 400 and 2,000 yr, respectively, demonstrate that the current warming at high elevations in the mid- to low latitudes is unprecedented for at least the last 2 millennia. Second, the continuing retreat of most mid- to low-latitude glaciers, many having persisted for thousands of years, signals a recent and abrupt change in the Earth’s climate system. Finally, rooted, soft-bodied wetland plants, now exposed along the margins as the Quelccaya ice cap (Peru) retreats, have been radiocarbon dated and, when coupled with other widespread proxy evidence, provide strong evidence for an abrupt mid-Holocene climate event that marked the transition from early Holocene (pre-5,000-yr-B.P.) conditions to cooler, late Holocene (post-5,000-yr-B.P.) conditions. This abrupt event, ≈5,200 yr ago, was widespread and spatially coherent through much of the tropics and was coincident with structural changes in several civilizations. These three lines of evidence argue that the present warming and associated glacier retreat are unprecedented in some areas for at least 5,200 yr. The ongoing global-scale, rapid retreat of mountain glaciers is not only contributing to global sea-level rise but also threatening freshwater supplies in many of the world’s most populous regions. |
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