noaa-icecore-13604
Grigorieva Ice Cap 12,650 Year Ice Core Isotope and Major Ions Data
Takeuchi, N.; Fujita, K.; Aizen, V.B.; Nikitin, S.A.; Narama, C.; Yokoyama, Y.; Okamoto, S.; Naoki, K.; Kubota, J.
Grigorieva Ice Cap 12,650 Year Ice Core Isotope and Major Ions Data
2012-12-06
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/13604
Investigator
N.
Takeuchi
Investigator
K.
Fujita
Investigator
V.B.
Aizen
Investigator
S.A.
Nikitin
Investigator
C.
Narama
Investigator
Y.
Yokoyama
Investigator
S.
Okamoto
Investigator
K.
Naoki
Investigator
J.
Kubota
earth science
paleoclimate
ice cores
depth at sample start,null,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
delta 18O,bulk ice,null,per mil VSMOW,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
sulfate,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
ammonium,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
calcium,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
sodium,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
magnesium,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
depth at sample end,null,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
fluoride,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
deuterium excess,bulk ice,null,per mil VSMOW,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
phosphate,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
depth,null,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
potassium,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
delta 2H,bulk ice,null,per mil VSMOW,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
nitrite,bulk ice,null,parts per billion,null,ice cores,null,null,N,null
earth science
paleoclimate
ice core
oxygen isotopes
earth science
paleoclimate
ice core
hydrogen isotopes
earth science
paleoclimate
ice core
chemistry
geoscientificInformation
-10640 AD
2007 AD
12590 cal yr BP
-57 cal yr BP
Complete
41.9761
41.9761
77.9136
77.9136
4563
4563
Continent
Asia
Southcentral Asia
Kyrgyzstan
Grigorieva Ice Cap>LATITUDE 41.9761>LONGITUDE 77.9136
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
Takeuchi, N., K. Fujita, V. Aizen, S.A. Nikitin, C. Narama, Y. Yokoyama, S. Okamoto, K. Naoki, J.Kubota. Submitted.
The disappearance of glaciers in Central Asia at the end of the Pleistocene revealed by an ice core drilled in the Tien Shan Mountains.
Earth and Planetary Science Letter (submitted in 2012)
K. Fujita, N. Takeuchi, S.A. Nikitin, A.B. Surazakov, S. Okamoto, V.B. Aizen, and J. Kubota. 2011.
Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan.
The Cryosphere, Vol. 5, pp. 539-549.
DOI: 10.5194/tc-5-539-2011
We conducted 2yr (2005-2007) of in situ meteorological and glaciological observations on the Gregoriev Glacier, a flat-top glacier within the Inner Tien Shan, Kyrgyzstan. Relative carrier-phase GPS surveys reveal a vertical lowering at the summit of the glacier. Based on snow density data and an energy-mass balance model, we estimate that the annual precipitation and summer mean temperature required to maintain the glacier in the current state are 289mm and -3.8 C at the glacier summit (4600ma.s.l.), respectively. The good agreement between dynamically derived precipitation and the long-term observed precipitation at a nearby station in the Tien Shan (296mm at 3614ma.s.l. for the period 1930-2002) suggests that the glacier has been in a near steady-state in terms of mass supply. The glacier mass balance, reconstructed based on meteorological data from the Tien Shan station for the past 80 yr, explains the observed fluctuations in glacier extent, particularly the negative mass balance in the 1990s.
STUDY NOTES: High resolution stable isotopes and major ions data from the 86.85 m length Grigorieva surface to bedrock ice core recovered in August 2007.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/grigorieva/grigorieva2011.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11