Canadian Arctic and Greenland 15,000 Year July Temperature Reconstructions Gajewski, K.J. Gajewski, K.J. Air Temperature Reconstruction earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,null,degree Celsius,Jul,climate reconstructions|pollen,interpolated,modern analogue technique,N,regional averages interpolated to 200-year intervals) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,null,degree Celsius,Jul,climate reconstructions|pollen,anomalized|interpolated,modern analogue technique,N,regional averages interpolated to 200-year intervals) earth science/paleoclimate/climate reconstructions|pollen (sample identification,null,null,null,null,climate reconstructions|pollen,null,null,N,Record number) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,squared chord distance,dimensionless,Jul,climate reconstructions|pollen,null,modern analogue technique,N,First of top 3 analogue distances) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,one standard deviation lower bound,degree Celsius,Jul,climate reconstructions|pollen,interpolated,modern analogue technique,N,null) earth science/paleoclimate/climate reconstructions|pollen (sample identification,null,null,null,null,climate reconstructions|pollen,null,null,C,Lake Name code and depth) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,one standard deviation lower bound,degree Celsius,Jul,climate reconstructions|pollen,anomalized|interpolated,modern analogue technique,N,regional averages interpolated to 200-year intervals) earth science/paleoclimate/climate reconstructions|pollen (age,null,null,calendar year before present,null,climate reconstructions|pollen,null,null,N,present defined as 2000 AD) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,squared chord distance,dimensionless,Jul,climate reconstructions|pollen,null,modern analogue technique,N,Second of top 3 analogue distances) earth science/paleoclimate/climate reconstructions|pollen (number of samples,null,null,count,null,climate reconstructions|pollen,null,null,N,Number of sites used for average) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,one standard deviation upper bound,degree Celsius,Jul,climate reconstructions|pollen,anomalized|interpolated,modern analogue technique,N,regional averages interpolated to 200-year intervals) earth science/paleoclimate/climate reconstructions|pollen (sample identification,null,null,null,null,climate reconstructions|pollen,null,null,N,Region Code) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,squared chord distance,dimensionless,Jul,climate reconstructions|pollen,null,modern analogue technique,N,average dissimilarity) earth science/paleoclimate/climate reconstructions|pollen (sample identification,null,null,null,null,climate reconstructions|pollen,null,null,N,Site number) earth science/paleoclimate/climate reconstructions|pollen (longitude,null,null,degree east,null,climate reconstructions|pollen,null,null,N,null) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,null,degree Celsius,Jul,climate reconstructions|pollen,interpolated,modern analogue technique,N,null) earth science/paleoclimate/climate reconstructions|pollen (age,null,null,calendar year before present,null,climate reconstructions|pollen,null,null,N,null) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,one standard deviation upper bound,degree Celsius,Jul,climate reconstructions|pollen,interpolated,modern analogue technique,N,null) earth science/paleoclimate/climate reconstructions|pollen (surface temperature,null,squared chord distance,dimensionless,Jul,climate reconstructions|pollen,null,modern analogue technique,N,Third of top 3 analogue distances) earth science/paleoclimate/climate reconstructions|pollen (latitude,null,null,degree north,null,climate reconstructions|pollen,null,null,N,null) earth science/paleoclimate/reconstructions (Canadian Arctic and Greenland>LATITUDE >LONGITUDE ) Holocene temperature variations were reconstructed for the Canadian Arctic Archipelago and coastal Greenland using pollen data from 39 radiocarbon-dated lake sediment cores. Using the modern analog technique, mean July temperatures were estimated for the past 10.2 ka, and regional averages computed. In the western and central Arctic, maximum temperatures were found before 7 ka. In the eastern Canadian Arctic, north Greenland and east Greenland, maximum temperatures were found between 8 and 5 ka, and in southern Greenland after 4 ka. When combined with previously published reconstructions from boreal Canada and eastern Beringia, the Holocene climate history of this region can be divided into three parts with major transitions at 8.0 and 5.2 ka, however, the different regions had different histories. STUDY NOTES: July temperatures based on pollen from lake sediments across the Canadian Arctic Archipelago and Greenland. The Modern Analogue Technique was used to estimate Tjul for 1400 pollen spectra from 39 lakes. Values were then interpolated to 200 year intervals and regional averages computed. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Gajewski, K.J. 2015-03-20 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/18515 https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015northgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015eastcanada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015.xlsx https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015eastgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arcticbysite.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arctic-interp.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015westcanada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arctic.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015southgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015centralcanada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015northgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015eastcanada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015.xlsx https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015eastgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arcticbysite.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arctic-interp.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015westcanada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arctic.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015southgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015centralcanada.txt English https://www.ncdc.noaa.gov/paleo/study/18515 https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015northgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015eastcanada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015.xlsx https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015eastgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arcticbysite.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arctic-interp.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015westcanada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015arctic.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015southgreenland.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pollen/recons/northamerica/gajewski2015centralcanada.txt Gajewski, K.2015Quantitative reconstruction of Holocene temperatures across the Canadian Arctic and GreenlandGlobal and Planetary Change12814-2310.1016/j.gloplacha.2015.02.003http://www.sciencedirect.com/science/article/pii/S0921818115000417 START YEAR: 15000 cal yr BP * END YEAR: 0 cal yr BP -125 60 -20 83