GISP2 Ice Core 110KYr Electrical Conductivity Measurements Taylor, K.C.; Alley, R.B.; Lamorey, G.W.; Mayewski, P.A. Taylor, K.C. Alley, R.B. Lamorey, G.W. Mayewski, P.A. earth science/paleoclimate/ice cores (depth at sample start,null,null,meter,null,ice cores,null,null,N,null) earth science/paleoclimate/ice cores (electrical conductivity,bulk ice,null,microampere,null,ice cores,averaged,null,N,null) earth science/paleoclimate/ice cores (ice age at sample start,null,null,calendar year before present,null,ice cores,null,null,N,null) earth science/paleoclimate/ice core (GISP2>LATITUDE 72.6>LONGITUDE -38.5) The Greenland Ice Sheet Project 2 (GISP2) electrical conductivity measurement (ECM) record is an indication of the concentration of H + in the core. The ECM detected seasonal variations in the nitrate concentration of the core which were used to assist in dating the core by annual layer counting. Volcanic eruptions that produce acidic aerosols are recorded in the ECM record. Evidence of biomass burning is detected by the ECM because fire-related ammonium emissions neutralize the acids in the core. Rapid climate transitions associated with the Younger Dryas and Dansgaard/Oeschger interstadial events alter the concentration of alkaline dust and are detected by the ECM. The ECM has been used to develop stratigraphic ties between the GISP2 and the Greenland Ice Core Project cores. Users of the data should be aware of some instrument-related artifacts in the ECM record. STUDY NOTES: GISP2 Electrical Conductivity Measurements (ECM), 1mm raw measurements and 0.5 meter averages with age. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Taylor, K.C. Investigator : Alley, R.B. Investigator : Lamorey, G.W. Investigator : Mayewski, P.A. 2014-11-30 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/17818 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ecmage.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ecminfo.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ecmage.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ecminfo.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ English https://www.ncdc.noaa.gov/paleo/study/17818 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ecmage.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ecminfo.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/ecm/ Kendrick C. Taylor, Richard B. Alley, Gregg W. Lamorey, Paul Mayewski1997Electrical measurements on the Greenland Ice Sheet Project 2 CoreJournal of Geophysical Research: Oceans102C1226511-2651710.1029/96JC02500http://onlinelibrary.wiley.com/enhanced/doi/10.1029/96JC02500/ START YEAR: 110932 cal yr BP * END YEAR: -33 cal yr BP -38.5 72.6 -38.5 72.6