noaa-recon-23430 Greenland 22,000 Year Seasonal Temperature Reconstructions Buizert, C.; Keisling, B.A.; Box, J.E.; He, F.; Carlson, A.E.; Sinclair, G.; DeConto, R.M. Greenland 22,000 Year Seasonal Temperature Reconstructions 2018-02-21 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23430 Investigator C. Buizert Investigator B.A. Keisling Investigator J.E. Box Investigator F. He Investigator A.E. Carlson Investigator G. Sinclair Investigator R.M. DeConto earth science paleoclimate climate reconstructions|ice cores precipitation,null,null,meter per second,monthly,climate reconstructions|ice cores,null,null,N,Accumulation rate in water equivalent earth science paleoclimate climate reconstructions|ice cores age,null,null,null,null,climate reconstructions|ice cores,null,null,N,null earth science paleoclimate climate reconstructions|ice cores age,null,null,calendar year before present,null,climate reconstructions|ice cores,null,null,N,null earth science paleoclimate climate reconstructions|ice cores surface air temperature,null,null,kelvin,monthly,climate reconstructions|ice cores,null,null,N,Surface Air Temperature at 2m height earth science paleoclimate climate reconstructions|ice cores longitude,null,null,degree east,null,climate reconstructions|ice cores,null,null,N,null earth science paleoclimate climate reconstructions|ice cores latitude,null,null,degree north,null,climate reconstructions|ice cores,null,null,N,null earth science paleoclimate climate reconstructions|ice cores ice sheet elevation,null,null,meter,null,climate reconstructions|ice cores,null,null,N,Digital Elevation Model earth science paleoclimate reconstructions air temperature geoscientificInformation Air Temperature Reconstruction 22000 cal yr BP -60 cal yr BP Complete 60 82 -60 -20 Continent North America Greenland Greenland>LATITUDE >LONGITUDE None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII C. Buizert, B.A. Keisling, J.E. Box, F. He, A.E. Carlson, G. Sinclair, R.M. DeConto 2018 Geophysical Research Letters 10.1002/2017GL075601 http://onlinelibrary.wiley.com/wol1/doi/10.1002/2017GL075601/full

The sensitivity of the Greenland ice sheet to climate forcing is of key importance in assessing its contribution to past and future sea level rise. Surface mass loss occurs during summer, and accounting for temperature seasonality is critical in simulating ice sheet evolution and in interpreting glacial landforms and chronologies. Ice core records constrain the timing and magnitude of climate change but are largely limited to annual mean estimates from the ice sheet interior. Here we merge ice core reconstructions with transient climate model simulations to generate Greenland-wide and seasonally resolved surface air temperature fields during the last deglaciation. Greenland summer temperatures peak in the early Holocene, consistent with records of ice core melt layers. We perform deglacial Greenland ice sheet model simulations to demonstrate that accounting for realistic temperature seasonality decreases simulated glacial ice volume, expedites the deglacial margin retreat, mutes the impact of abrupt climate warming, and gives rise to a clear Holocene ice volume minimum.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/buizert2018/ Data Folder; Buizert et al. 2018 Data files - netCDF, Text, and Excel USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11