noaa-icecore-23235 Amundsenisen Dronning Maud Land oxygen isotope and accumulation rate data from 1895-1996 CE Oerter, H.; Graf, W.; Wilhelms, F.; Minikin, A.; Miller, H. Amundsenisen Dronning Maud Land oxygen isotope and accumulation rate data from 1895-1996 CE 2017-11-17 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23235 Investigator H. Oerter Investigator W. Graf Investigator F. Wilhelms Investigator A. Minikin Investigator H. Miller earth science paleoclimate ice cores accumulation rate,snow,null,kilogram per square meter per year,null,ice cores,null,null,N,calculated earth science paleoclimate delta 18O,bulk ice,null,per mil SMOW,null,,null,isotope ratio mass spectrometry,N,mean annual values earth science paleoclimate ice cores ice age,null,null,year Common Era,null,ice cores,null,null,N,"titrium content; dielectric profiling, electrical conductivity; volcanic reference horizons" earth science paleoclimate ice core accumulation earth science paleoclimate ice core oxygen isotopes geoscientificInformation 1895 AD 1996 AD 55 cal yr BP -46 cal yr BP Complete -75.9333 -74.4094 -2.55 11.35 2817 3349 Continent Antarctica DML04 Amundsenisen Dronning Maud Land>LATITUDE -74.4094>LONGITUDE 7.2181 Continent Antarctica DML09 Amundsenisen Dronning Maud Land>LATITUDE -75.9333>LONGITUDE 7.2217 Continent Antarctica DML01 Amundsenisen Dronning Maud Land>LATITUDE -74.8583>LONGITUDE -2.55 Continent Antarctica DML06 Amundsenisen Dronning Maud Land>LATITUDE -75.0011>LONGITUDE 8.0089 Continent Antarctica DML08 Amundsenisen Dronning Maud Land>LATITUDE -75.7547>LONGITUDE 3.2936 Continent Antarctica DML10 Amundsenisen Dronning Maud Land>LATITUDE -75.2167>LONGITUDE 11.35 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. 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

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Boulder CO 80305-3328 USA online ASCII Oerter, Hans; Graf, Wolfgang; Wilhelms, Frank; Minikin, Andreas; and Miller, Heinz 1999 Annals of Glaciology 29 1 1-9 10.3189/172756499781820914

The paper focuses on studies of snow-pit samples and shallow firn cores taken during the 1995–96 and 1996–97 field seasons at Amundsenisen, Dronning Maud Land, Antarctica. The dating of the firn is based on the artificial tritium distribution in the snow cover and on several reference horizons identified by electrical measurements. The early 1964 through 1965 horizon is marked by the deposition of sulfate released to the atmosphere during the eruption of the Agung volcano in March 1963; this horizon was detected by dielectric profiling and electrical conductivity measurements; the proof by chemical analysis has still to be seen. At the ten investigated sites on Amundsenisen the 1964–65 horizon was identified 4.1–5.7 m below the surface. The accumulation rates on Amundsenisen are 41–91 kg m-2a-1. The cores are up to 100 years old. A relationship between isotope content and the mean air temperature on a regional scale can be based on measurements of firn temperature at 10 m depth at the drilling sites. Between Neumayer station at the coast and Heimefrontfjella, the temperature gradient of the deuterium content is 9.6‰ K-1. South of Heimefrontfjella, on the Amundsenisen plateau, it is only 5.5‰ K-1. Time series of yearly accumulation rates show no significant trend. For the isotope records a significant trend to higher values with gradients of 0.1–0.2 ?2H‰a-1 can be seen in five of the ten time series. STUDY NOTES: DML data contributed to the PAGES 2k project Provided Keywords: oxygen isotope of water, temperature proxy, accumulation rate

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_11-accum-DML_Plateau_FB97DML04.txt NOAA Template File; DML04 Snow Accumulation Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_08-accum-DML_Plateau_FB96DML01.txt NOAA Template File; DML01 Snow Accumulation Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_13-accum-DML_Plateau_FB97DML06.txt NOAA Template File; DML06 Snow Accumulation Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_08-PAGESAnt2k-DML_Plateau_FB96DML01.txt NOAA Template File; DML01 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_11-PAGESAnt2k-DML_Plateau_FB97DML04.txt NOAA Template File; DML04 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_17-PAGESAnt2k-DML_Plateau_FB97DML10.txt NOAA Template File; DML10 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_15-PAGESAnt2k-DML_Plateau_FB97DML08.txt NOAA Template File; DML08 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_13-PAGESAnt2k-DML_Plateau_FB97DML06.txt NOAA Template File; DML06 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_16-accum-DML_Plateau_FB97DML09.txt NOAA Template File; DML09 Snow Accumulation Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_15-accum-DML_Plateau_FB97DML08.txt NOAA Template File; DML08 Snow Accumulation Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_16-PAGESAnt2k-DML_Plateau_FB97DML09.txt NOAA Template File; DML09 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_17-accum-DML_Plateau_FB97DML10.txt NOAA Template File; DML10 Snow Accumulation Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11