Plateau Remote, Antarctica 2,000 Year Ice Core Oxygen Isotope Data Mosley-Thompson, E.; PAGES 2k Network Mosley-Thompson, E. PAGES 2k Network 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 (age,null,null,year Common Era,null,ice cores,null,null,N,null) earth science/paleoclimate/ice core (Plateau Remote>LATITUDE -84>LONGITUDE 43) Past global climate changes had strong regional expression. To elucidate their spatio-temporal pattern, we reconstructed past temperatures for seven continental-scale regions during the past one to two millennia. The most coherent feature in nearly all of the regional temperature reconstructions is a long-term cooling trend, which ended late in the nineteenth century. At multi-decadal to centennial scales, temperature variability shows distinctly different regional patterns, with more similarity within each hemisphere than between them. There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between ad 1580 and 1880, punctuated in some regions by warm decades during the eighteenth century. The transition to these colder conditions occurred earlier in the Arctic, Europe and Asia than in North America or the Southern Hemisphere regions. Recent warming reversed the long-term cooling; during the period ad 1971-2000, the area-weighted average reconstructed temperature was higher than any other time in nearly 1,400 years. STUDY NOTES: Ice core oxygen isotope (d18O) data from Plateau Remote, East Antarctica at annual resolution for the past 2,000 years. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Mosley-Thompson, E. Investigator : PAGES 2k Network 2017-05-19 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/22479 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/plateau-remote/plateau-remote2013d18o.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/plateau-remote/plateau-remote2013d18o.txt English https://www.ncdc.noaa.gov/paleo/study/22479 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/plateau-remote/plateau-remote2013d18o.txt PAGES 2k Consortium. 2013. Continental-scale temperature variability during the past two millennia. Nature Geoscience, Vol. 6, pp. 339-346, May 2013. www.nature.com/naturegeoscience DOI: 10.1038/NGEO1797 START YEAR: 2 AD * END YEAR: 1986 AD 43 -84 43 -84