noaa-lake-6193 Northeastern Fennoscandia 2,000 Year Pollen Data and Inferred Summer Temperature Bjune, A.E.; Seppä, H.; Birks, H.J.B. Northeastern Fennoscandia 2,000 Year Pollen Data and Inferred Summer Temperature 2008-11-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/6193 Investigator A.E. Bjune Investigator H. Seppä Investigator H.J.B. Birks earth science paleoclimate climate reconstructions|pollen depth,null,null,centimeter,null,climate reconstructions|pollen,null,null,N,null earth science paleoclimate climate reconstructions|pollen surface temperature,null,null,degree Celsius,Jul,climate reconstructions|pollen,null,null,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 paleolimnology geochemistry geoscientificInformation Air Temperature Reconstruction PAGES 2k Network PAGES Arctic 2k 2071 cal yr BP -45 cal yr BP Complete 68.433 68.433 18.066 18.066 510 510 Continent Europe Northern Europe Scandanavia Norway Bjornfjelltjorn>LATITUDE 68.433>LONGITUDE 18.066 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

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII Bjune, AE; Seppa, H; Birks, HJB; 2009 Journal of Paleolimnology 41 1 43-56 10.1007/s10933-008-9254-y

Quantitative reconstructions of mean July temperatures (T (jul)) based on new and previously published pollen-stratigraphical data covering the last 2000 years from 11 lakes in northern Fennoscandia and the Kola Peninsula are presented. T (jul) values are based on a previously published pollen-climate transfer function for the region with a root-mean-square error of prediction (RMSEP) of 0.99A degrees C. The most obvious trend in the inferred temperatures from all sites is the general decrease in T (jul) during the last 2000 years. Pollen-inferred T (jul) values on average 0.18 +/- 0.56 degrees C (n = 91) higher than present (where "present" refers to the last three decades based on pollen-inferred T (jul) in core-top samples) are indicated between 0 and 1100 AD (2000-850 cal year BP), and temperatures -0.2 +/- 0.47 degrees C (n = 78) below present are inferred between 1100 and 1900 AD (850-50 cal year BP). No consistent temperature peak is observed during the 'Medieval Warm Period', ca. 900-1200 AD (1100-750 cal year BP), but the cooler period between 1100 and 1900 AD (850-50 cal year BP) corresponds in general with the 'Little Ice Age' (LIA). Consistently with independent stable isotopic data, the composite pollen-based record suggests that the coldest periods of the LIA date to 1500-1600 AD (450-350 cal year BP) and 1800-1850 AD (150-100 cal year BP). An abrupt warming occurred at about 1900 AD and the twentieth century is the warmest century since about 1000 AD (950 cal year BP). STUDY NOTES: Pollen counts and inferred summer temperature in for 11 lakes in northeastern Fennoscandia.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/fennoscandia2008pollen.xls GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/fennoscandia2008pollen.txt USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11