noaa-borehole-22472 Southern and Central Urals Borehole Temperature Reconstruction covering 800-1950 CE Demezhko, D.Y.; Golovanova, I.V. Southern and Central Urals Borehole Temperature Reconstruction covering 800-1950 CE 2017-05-19 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22472 Investigator D.Y. Demezhko Investigator I.V. Golovanova earth science paleoclimate borehole|climate reconstructions surface temperature,null,null,degree Celsius,annual,borehole|climate reconstructions,anomalized,inverse model,N,GST anomaly relative to (800-1950) mean; borehole temperature inversion (see Demezhko; D. Y.; Shchapov; V. A.; Glob. Planet. Change; 29; 219–230; 2001) earth science paleoclimate borehole age,null,null,year Common Era,null,borehole,null,null,N,null earth science paleoclimate climate reconstructions surface temperature,null,null,degree Celsius,annual,climate reconstructions,anomalized,numerical simulation,N,GST anomaly relative to (800-1950) mean; borehole temperature inversion (see Demezhko; D. Y.; Shchapov; V. A.; Glob. Planet. Change; 29; 219–230; 2001) earth science paleoclimate borehole|climate reconstructions age,null,null,year Common Era,null,borehole|climate reconstructions,null,null,N,null earth science paleoclimate boreholes physical properties geoscientificInformation Air Temperature Reconstruction 800 AD 1950 AD 1150 cal yr BP 0 cal yr BP Complete 51 59 58 61 Continent Europe Eastern Europe Russia Southern and Central Urals>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 Demezhko, D.Yu. and I.V. Golovanova 2007 Climate of the Past 3 237-242 10.5194/cp-3-237-2007

This investigation is based on a study of two paleoclimatic curves obtained in the Urals (51–59° N, 58–61° E): i) a ground surface temperature history (GSTH) reconstruction since 800 A.D. and ii) meteorological data for the last 170 years. Temperature anomalies measured in 49 boreholes were used for the GSTH reconstruction. It is shown that a traditional averaging of the histories leads to the lowest estimates of amplitude of past temperature fluctuations. The interval estimates method, accounting separately for the rock's thermal diffusivity variations and the influence of a number of non-climatic causes, was used to obtain the average GSTH. Joint analysis of GSTH and meteorological data bring us to the following conclusions. First, ground surface temperatures in the Medieval maximum during 1100–1200 were 0.4 K higher than the 20th century mean temperature (1900–1960). The Little Ice Age cooling was culminated in 1720 when surface mean temperature was 1.6 K below the 20th century mean temperature. Secondly, contemporary warming began approximately one century prior to the first instrumental measurements in the Urals. The rate of warming was +0.25 K/100 years in the 18th century, +1.15 K/100 years in the 19th and +0.75 K/100 years in the first 80 years of the 20th century. Finally, the mean rate of warming increased in the final decades of 20th century. An analysis of linear regression coefficients in running intervals of 21 and 31 years, shows that there were periods of warming with almost the same rates in the past, including the 19th century. STUDY NOTES: Half-centennial resolution. Elevation estimated from GoogleEarth and rounded to 100 m

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/borehole/demezhko2007/demezhko2007-urals.txt NOAA Template File; Temperature Anomaly Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/pages2k-temperature-v2-2017/data-version-2.0.0/Asi-SourthAndMiddleUrals.Demezhko.2007.lpd LiPD File; PAGES 2k v2 Original Source URL GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/pages2k-temperature-v2-2017/data-version-2.0.0/Asi-SourthAndMiddleUrals.Demezhko.2007.txt NOAA Template File; PAGES 2k v2 Original Source URL USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11