noaa-icecore-12947
Vostok Ice Core Electrical Conductivity Measurements (ECM)
Parrenin, F.; Petit, J.-R.; Masson-Delmotte, V.; Basile, I.; Jouzel, J.; Lipenkov, V.; Rasmussen, S.O.; Schwander, J.; Severi, M.; Udisti, R.; Veres, D.; Vinther, B.M.; Wolff, E.W.
Vostok Ice Core Electrical Conductivity Measurements (ECM)
2012-05-24
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/12947
Investigator
F.
Parrenin
Investigator
J.-R.
Petit
Investigator
V.
Masson-Delmotte
Investigator
I.
Basile
Investigator
J.
Jouzel
Investigator
V.
Lipenkov
Investigator
S.O.
Rasmussen
Investigator
J.
Schwander
Investigator
M.
Severi
Investigator
R.
Udisti
Investigator
D.
Veres
Investigator
B.M.
Vinther
Investigator
E.W.
Wolff
earth science
paleoclimate
ice cores
depth,null,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
electrical conductivity,bulk ice,null,relative unit,null,ice cores,averaged,direct current electrical conductivity measurement,N,null
earth science
paleoclimate
ice core
physical properties
geoscientificInformation
145000 cal yr BP
0 cal yr BP
Complete
-78.47
-78.47
106.8
106.8
Continent
Antarctica
Vostok>LATITUDE -78.47>LONGITUDE 106.8
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
Parrenin, F., J.-R. Petit, V. Masson-Delmotte, I. Basile-Doelsch,
J. Jouzel, V. Lipenkov, S. Rasmussen, J. Schwander, M. Severi,
R. Udisti, D. Veres, B. Vinther, and E. Wolff. 2011.
Volcanic synchronisation between the EPICA Dome C
and Vostok ice cores (Antarctica) 0-145 kyr BP.
Clim. Past Discuss., 7, 4105-4147.
This study aims at refining the synchronisation between the EPICA
Dome C (EDC) and Vostok ice cores in the time interval 0-145 kyr BP
by using the volcanic signatures. 111 common volcanic events were
identified by using continuous electrical conductivity (ECM),
di-electrical profiling (DEP) and sulfate measurements while
trying to minimize the distortion of the glaciological chronologies.
This is an update and a continuation of previous works performed
over the 0-45 kyr interval which provided 56 tie points to the
ice core chronologies (Udisti et al., 2004). This synchronisation
will serve for the establishment of the next synchronised Antarctic
dating. A change of slope in the EDC-depth/Vostok-depth diagram
is probably related to a change of accumulation regime as well as
to a change of ice thickness upstream of the Vostok lake, but we
did not invoke any significant temporal change of surface
accumulation at EDC relative to Vostok. A significant phase
difference is detected between the EDC and Vostok isotopic records
during the 95-120 kyr interval, but not during Termination II.
Three possible candidates for the Toba volcanic super-eruption
~73 kyr ago are suggested in the Vostok and EDC volcanic records.
However the ECM, DEP and sulfate fingerprints for these three
events are not significantly larger than many others in the records.
STUDY NOTES: Electrical Conductivity Measurements (ECM) from two ice cores
collected at Vostok, Antarctica. Data from the shallow VK-BH7
core are presented to 240m depth, and data from the deep VK-5G
core from 200m to 2000m depth, both at 1 cm. resolution.
Raw data collected every millimeter, averaged every 5 centimeters,
and resampled every centimeter.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2011ecm.xlsx
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2011ecm.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11