Dronning Maud Land Coastal Ice Core 100 Year Subannual dD and d18O Data Naik, S.S.; Meloth, T.; Laluraj, C.M.; Redkar, B.L.; Chaturvedi, A. Naik, S.S. Meloth, T. Laluraj, C.M. Redkar, B.L. Chaturvedi, A. earth science/paleoclimate/ice cores (delta 2H,bulk ice,null,per mil SMOW,null,ice cores,null,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/ice cores (delta 18O,bulk ice,null,per mil SMOW,null,ice cores,null,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/ice cores (depth,null,null,meter,null,ice cores,null,null,N,null) earth science/paleoclimate/ice cores (age,null,null,year Common Era,null,ice cores,null,null,N,null) earth science/paleoclimate/ice core earth science/paleoclimate/ice core (IND-25/B5>LATITUDE -71.34>LONGITUDE 11.59) Stable isotope records of oxygen and hydrogen were studied from a 65 m long ice core retrieved from central Dronning Maud Land, East Antarctica, in order to reconstruct the coastal Antarctic climate variability during the last century and its relation to the Southern Annular Mode (SAM) and El Niño-Southern Oscillation (ENSO). The d18O records showed a significant relation to the SAM with a dominant ~4 years variability, except during specific periods (1918-1927, 1938-1947, and 1989-2005) when ENSO teleconnection was established through the in-phase relation between SAM and Southern Oscillation Index (SOI). The combined influence of ENSO and SAM was seen on surface air temperatures in this region mainly during the austral summer season from 1989 to 2005. Further, a significant relationship between d18O and SAM was observed on a decadal scale, which overrides the intermittent influence of ENSO. Major shifts in the deuterium excess record were observed during periods of ENSO teleconnections, which support a shift in moisture source regions during the periods of stronger ENSO teleconnections. Surface air temperatures estimated using the d18O-T spatial slope for this region depicted a significant warming of 1C for the past century. The study reveals that throughout the last century, SAM was the dominant mode of climatic variability in the coastal region of central Dronning Maud Land on a decadal scale. STUDY NOTES: Oxygen and hydrogen isotope (d18O and dD) data from the IND-25/B5 ice core collected in coastal Dronning Maud Land, East Antarctica, for the past 100 years at subannual resolution. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Naik, S.S. Investigator : Meloth, T. Investigator : Laluraj, C.M. Investigator : Redkar, B.L. Investigator : Chaturvedi, A. 2017-09-07 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/22602 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/maud/dronning2010iso.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/maud/dronning2010iso.txt English https://www.ncdc.noaa.gov/paleo/study/22602 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/maud/dronning2010iso.txt Sushant S. Naik, Thamban Meloth, C.M. Laluraj, B.L. Redkar and Arun Chaturvedi 2010A century of climate variability in central Dronning Maud Land, East Antarctica, and its relation to Southern Annular Mode and El Niño-Southern OscillationJournal of Geophysical Research: Atmospheres115D1610.1029/2009JD013268http://onlinelibrary.wiley.com/doi/10.1029/2009JD013268/abstract START YEAR: 1903 AD * END YEAR: 2006 AD 11.59 -71.34 11.59 -71.34