noaa-icecore-12942
Dunde Ice Core 1500 Year d18O, Dust, Anion, and Accumulation Data
Thompson, L.G.; Mosley-Thompson, E.; Brecher, H.H.; Davis, M.E.; Leon, B.; Les, D.; Lin, P-N.; Mashiotta, T.A.; Mountain, K.
Dunde Ice Core 1500 Year d18O, Dust, Anion, and Accumulation Data
2012-05-21
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/12942
Investigator
L.G.
Thompson
Investigator
E.
Mosley-Thompson
Investigator
H.H.
Brecher
Investigator
M.E.
Davis
Investigator
B.
Leon
Investigator
D.
Les
Investigator
P-N.
Lin
Investigator
T.A.
Mashiotta
Investigator
K.
Mountain
earth science
paleoclimate
ice cores
accumulation rate,bulk ice,null,meter,null,ice cores,null,null,N,water equivalent
earth science
paleoclimate
ice cores
sulfate,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
dust,bulk ice,null,count per milliliter,null,ice cores,null,null,N,2.00-60 um
earth science
paleoclimate
ice cores
ice age at sample end,null,null,year Common Era,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
chloride,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
nitrate,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
ice age at sample start,null,null,year Common Era,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
delta 18O,bulk ice,null,per mil SMOW,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
dust,bulk ice,null,count per milliliter,null,ice cores,null,null,N,0.63-16um
earth science
paleoclimate
ice core
accumulation
earth science
paleoclimate
ice core
oxygen isotopes
earth science
paleoclimate
ice core
chemistry
geoscientificInformation
abrupt climate change
520 AD
1980 AD
1430 cal yr BP
-30 cal yr BP
Complete
38.1
38.1
96.4
96.4
5325
5325
Continent
Asia
Eastern Asia
China
Dunde Ice Cap>LATITUDE 38.1>LONGITUDE 96.4
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Thompson, L.G., E. Mosley-Thompson, H. Brecher, M. Davis,
B. Leon, D. Les, P.-N. Lin, T. Mashiotta, and K. Mountain. 2006.
Abrupt tropical climate change: Past and present.
Proceedings of the National Academy of Sciences, Vol. 103, No. 28,
pp. 10536-10543, 11 July, 2006.
DOI: 10.1073/pnas.0603900103
Three lines of evidence for abrupt tropical climate change, both past
and present, are presented. First, annually and decadally averaged d18O
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.
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
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/dunde/dunde2006.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/dunde/dunde2006.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11