Ritscherflya Dronning Maud Land, Antarctica oxygen isotope and accumulation rate data for 1932-1991 CE Isaksson, E.; Karlén, W.; Gundestrup, N.; Mayewski, P.A.; Whitlow, S.I.; Twickler, M.S. Isaksson, E. Karlén, W. Gundestrup, N. Mayewski, P.A. Whitlow, S.I. Twickler, M.S. 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/ice cores (delta 18O,bulk ice,null,per mil SMOW,null,ice cores,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,annual counting by dO18 and electrical conductivity) earth science/paleoclimate/ice core earth science/paleoclimate/ice core (Ritscherflya Core E Dronning Maud Land>LATITUDE -73.6>LONGITUDE -12.4333) A mass balance program was initiated in the Vestfjella-Heimefrontfjella area of western Dronning Maud Land during the austral summer of 1988–1989. As a part of this program, spatial and temporal variations in snow accumulation and temperature/stable isotopes are measured using shallow firn cores. In this paper we present surface accumulation data and discuss the climatic implications of the stable isotope records from two shallow firn cores. One 30-m-deep core, obtained about 200 km from the coast at 700 m asl (73°36'S, 12°26'W), covers the period 1932–1991. The other core was drilled at about 500 km from the coast at 2900 m asl (75°00'S, 2°00'E) and covers the period 1865–1991. The recent accumulation increase that has been reported from several areas of the Antarctic continent is not present in either of these records. Instead, our coastal record suggests a significant decrease in accumulation, with the strongest trend from about 1975. There is a positive trend in the oxygen isotope signal in both cores, which in the coastal core corresponds to a temperature increase of about 1.8°C since the early 1930s, and in the high-altitude core to about 0.8°C since 1865. However, it is likely that part of this increase in d18O is due to a change of moisture source. STUDY NOTES: DML data contributed to the PAGES 2k project. Provided Keywords: oxygen isotope of water, temperature proxy, accumulation rate NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Isaksson, E. Investigator : Karlén, W. Investigator : Gundestrup, N. Investigator : Mayewski, P.A. Investigator : Whitlow, S.I. Investigator : Twickler, M.S. 2017-11-17 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/23230 https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_16-PAGESAnt2k-DML_Ritscherflya_E91.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_16-accum-DML_Ritscherflya_E91.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_16-PAGESAnt2k-DML_Ritscherflya_E91.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_16-accum-DML_Ritscherflya_E91.txt English https://www.ncdc.noaa.gov/paleo/study/23230 https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_16-PAGESAnt2k-DML_Ritscherflya_E91.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_16-accum-DML_Ritscherflya_E91.txt Isaksson, E., W. Karlen, N. Gundestrup, P. Mayewski, S. Whitlow, and M. Twickler1996A century of accumulation and temperature changes in Dronning Maud Land, AntarcticaJournal of Geophysical Research: Atmospheres101D37085-709410.1029/95JD03232 START YEAR: 1932 AD * END YEAR: 1991 AD -12.4333 -73.6 -12.4333 -73.6