Antarctic climate variability on regional and continental scales over the last 2000 years

Stenni, Barbara; Curran, Mark A. J.; Abram, Nerilie J.; Orsi, Anais; Goursaud, Sentia; Masson-Delmotte, Valerie; Neukom, Raphael; Goosse, Hugues; Divine, Dmitry; van Ommen, Tas; Steig, Eric J.; Dixon, Daniel A.; Thomas, Elizabeth R.; Bertler, Nancy A. N.; Isaksson, Elisabeth; Ekaykin, Alexey; Werner, Martin; Frezzotti, Massimo

doi:https://doi.org/10.5194/cp-13-1609-2017

Articles | Volume 13, issue 11

Clim. Past, 13, 1609–1634, 2017

https://doi.org/10.5194/cp-13-1609-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Climate of the past 2000 years: regional and trans-regional...

Clim. Past, 13, 1609–1634, 2017

https://doi.org/10.5194/cp-13-1609-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 11

Research article 17 Nov 2017

Research article | 17 Nov 2017

Antarctic climate variability on regional and continental scales over the last 2000 years

Barbara Stenni et al.

Supplement

https://doi.org/10.5194/cp-13-1609-2017-supplement

Data sets

Target data set of NB2014 Polar Meteorology Group http://polarmet.osu.edu/datasets/Antarctic_recon/

Data generated during the current study NOAA World Data Center for Paleoclimatology (WDC Paleo) https://www.ncdc.noaa.gov/paleo-search/study/22589

Short summary

Within PAGES Antarctica2k, we build an enlarged database of ice core water stable isotope records. We produce isotopic composites and temperature reconstructions since 0 CE for seven distinct Antarctic regions. We find a significant cooling trend from 0 to 1900 CE across all regions. Since 1900 CE, significant warming trends are identified for three regions. Only for the Antarctic Peninsula is this most recent century-scale trend unusual in the context of last-2000-year natural variability.