Antarctic Peninsula Gomez Ice Core 150 Year d18O Data Thomas, E.R.; Dennis, P.F.; Bracegirdle, T.J.; Franzke, C. Thomas, E.R. Dennis, P.F. Bracegirdle, T.J. Franzke, C. earth science/paleoclimate/ice cores (ice age,null,null,year Common Era,null,ice cores,null,null,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 (delta 18O,bulk ice,null,per mil VSMOW,null,ice cores,null,isotope ratio mass spectrometry,N,per mil VSMOW SLAP) earth science/paleoclimate/ice cores (delta 18O,bulk ice,unspecified margin of error,per mil,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 (hydrogen peroxide,bulk ice,null,parts per billion,null,ice cores,null,null,N,null) earth science/paleoclimate/ice core (Gomez>LATITUDE -73.59>LONGITUDE -70.36) We present a new 150-year, high-resolution, stable isotope record (d18O) from the Gomez ice core, drilled on the data sparse south western Antarctic Peninsula, revealing a ~2.7°C rise in surface temperatures since the 1950s. The record is highly correlated with satellite-derived temperature reconstructions and instrumental records from Faraday station on the north west coast, thus making it a robust proxy for local and regional temperatures since the 1850s. We conclude that the exceptional 50-year warming, previously only observed in the northern Peninsula, is not just a local phenomena but part of a statistically significant 100-year regional warming trend that began around 1900. A suite of coupled climate models are employed to demonstrate that the 50 and 100 year temperature trends are outside of the expected range of variability from pre-industrial control runs, indicating that the warming is likely the result of external climate forcing. STUDY NOTES: Annual average oxygen isotope (d18O) data from the Gomez ice core, southwestern Antarctic Peninsula, drilled in 2007. Isotope data measured on a VG SIRA series II analyser with analytical precision of 0.07 per mil. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Thomas, E.R. Investigator : Dennis, P.F. Investigator : Bracegirdle, T.J. Investigator : Franzke, C. 2012-02-18 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/12543 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/gomez/gomez2009d18o.xls https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/gomez/gomez2009d18o.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/gomez/gomez2009d18o.xls https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/gomez/gomez2009d18o.txt English https://www.ncdc.noaa.gov/paleo/study/12543 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/gomez/gomez2009d18o.xls https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/gomez/gomez2009d18o.txt Thomas, E.R., P.F. Dennis, T.J. Bracegirdle, and C. Franzke. 2009. Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula. Geophysical Research Letters, Vol. 36, L20704, doi:10.1029/2009GL040104 START YEAR: 1857 AD * END YEAR: 2005 AD -70.36 -73.59 -70.36 -73.59