noaa-recon-30652 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2025-02-20 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Lake Lyadhej-To Air and Lake Surface Temperature Reconstructions during the last 11 ka 2020-04-15 publication doi:10.25921/yd8t-gc27 noaa-recon-30652 NCEI DSI 1200_02 NCEI DSI 1200_01 Andreev, A.A. originator Andreev, A.A. author Tarasov, P.E. originator Tarasov, P.E. author Ilyashuk, B. originator Ilyashuk, B. author Ilyashuk, E.A. originator Ilyashuk, E.A. author Cremer, H. originator Cremer, H. author Hermichen, W.-D. originator Hermichen, W.-D. author Wischer, F. originator Wischer, F. author Hubberten, H.-W. originator Hubberten, H.-W. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Climate Reconstruction. The data include parameters of climate reconstructions|insect|paleolimnology with a geographic location of Russia, Eastern Europe. The time period coverage is from 10888 to 68 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past temperature, precipitation, and other climate variables derived from paleoclimate proxies. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-recon.png Paleoclimatology - Climate Reconstruction PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Paleoclimate Reconstructions theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > reconstructions > air temperature theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Air Temperature Reconstruction theme What: notes; Material: null What: lake surface temperature; Material: midge assemblage What: lake surface temperature; Material: midge assemblage What: notes; Material: null What: age; Material: null What: lake surface temperature; Material: midge assemblage What: surface air temperature; Material: null What: depth; Material: null What: age; Material: null theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Continent > Europe > Eastern Europe > Russia > Lyadhej-To > LATITUDE 68.26 > LONGITUDE 65.8 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Andreev, A.A.; Tarasov, P.E.; Ilyashuk, B.; Ilyashuk, E.A.; Cremer, H.; Hermichen, W.-D.; Wischer, F.; Hubberten, H.-W. (2020-04-15): NOAA/WDS Paleoclimatology - Lake Lyadhej-To Air and Lake Surface Temperature Reconstructions during the last 11 ka. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/yd8t-gc27. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. 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Holocene environmental history recorded in Lake Lyadhej-To sediments, polar Urals, Russia 2005 publication Andreev, Andrei A.; Tarasov, Pavel E.; Ilyashuk, Boris P.; Ilyashuk, Elena A.; Cremer, Holger; Hermichen, Wolf-Dieter; Wischer, Frank; Hubberten, Hans-Wolfgang author Palaeogeography, Palaeoclimatology, Palaeoecology publisher https://doi.org/10.1016/j.palaeo.2005.04.004 HTTPS Web Browser Associated Reference published 2005 Andreev, Andrei A.; Tarasov, Pavel E.; Ilyashuk, Boris P.; Ilyashuk, Elena A.; Cremer, Holger; Hermichen, Wolf-Dieter; Wischer, Frank; Hubberten, Hans-Wolfgang, 2005: Holocene environmental history recorded in Lake Lyadhej-To sediments, polar Urals, Russia. Palaeogeography, Palaeoclimatology, Palaeoecology, 223, 181-203, 10.1016/j.palaeo.2005.04.004 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 10888 cal yr BP to 68 cal yr BP; 65.8 65.8 68.26 68.26 Study Coordinates 68.26 65.8 -8938 1882 STUDY NOTES: This dataset was contributed as part of the Temperature-12k project (https://doi.org/10.25921/4RY2-G808). Data were contributed to the project from the original data generators, who are listed in the Investigator field of this template file. Additional notes regarding the use of these data in the Temperature-12k project can be found in the LiPD file listed as an Online_Resource of this template file. ABSTRACT SUPPLIED BY ORIGINATOR: An 1180-cm long core recovered from Lake Lyadhej-To (68°15′ N, 65°45′ E, 150 m a.s.l.) at the NW rim of the Polar Urals Mountains reflects the Holocene environmental history from ca. 11,000 cal. yr BP. Pollen assemblages from the diamicton (ca. 11,000–10,700 cal. yr BP) are dominated by Pre-Quaternary spores and redeposited Pinaceae pollen, pointing to a high terrestrial input. Turbid and nutrient-poor conditions existed in the lake ca. 10,700–10,550 cal. yr BP. The chironomid-inferred reconstructions suggest that mean July temperature increased rapidly from 10.0 to 11.8 °C during this period. Sparse, treeless vegetation dominated on the disturbed and denuded soils in the catchment area. A distinct dominance of planktonic diatoms ca. 10,500–8800 cal. yr BP points to the lowest lake-ice coverage, the longest growing season and the highest bioproductivity during the lake history. Birch forest with some shrub alder grew around the lake reflecting the warmest climate conditions during the Holocene. Mean July temperature was likely 11–13 °C and annual precipitation—400–500 mm. The period ca. 8800–5500 cal. yr BP is characterized by a gradual deterioration of environmental conditions in the lake and lake catchment. The pollen- and chironomid-inferred temperatures reflect a warm period (ca. 6500–6000 cal. BP) with a mean July temperature at least 1–2 °C higher than today. Birch forests disappeared from the lake vicinity after 6000 cal. yr BP. The vegetation in the Lyadhej-To region became similar to the modern one. Shrub (Betula nana, Salix) and herb tundra have dominated the lake catchment since ca. 5500 cal. yr BP. All proxies suggest rather harsh environmental conditions. Diatom assemblages reflect relatively short growing seasons and a longer persistence of lake-ice ca. 5500–2500 cal. yr BP. Pollen-based climate reconstructions suggest significant cooling between ca. 5500 and 3500 cal. yr BP with a mean July temperature 8–10 °C and annual precipitation—300–400 mm. The bioproductivity in the lake remained low after 2500 cal. yr BP, but biogeochemical proxies reflect a higher terrestrial influx. Changes in the diatom content may indicate warmer water temperatures and a reduced ice cover on the lake. However, chironomid-based reconstructions reflect a period with minimal temperatures during the lake history. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/yd8t-gc27 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/30652 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/climate-reconstruction HTTPS Information NCEI Climate Reconstruction Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_NOAA_files/Lyadhej-To.Andreev.2005.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_NOAA_files/LakeLyadhej-To.Andreev.2005.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_LiPD_files/Lyadhej-To.Andreev.2005.lpd HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_LiPD_files/LakeLyadhej-To.Andreev.2005.lpd HTTPS Download NCEI Direct Download Direct download links for dataset files. download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21