# Talkin Tarn Surface Air Temperature Reconstructions over the Past 6000 Years #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/30838 # Online_Resource_Description: NOAA Landing Page # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/27330 # Online_Resource_Description: NOAA Landing Page for Temperature-12k Database # # Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_NOAA_files/TalkinTarn.Langdon.2004.txt # Online_Resource_Description: NOAA location of the template # # Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_LiPD_files/TalkinTarn.Langdon.2004.lpd # Online_Resource_Description: Linked Paleo Data (LiPD) formatted file containing metadata and data related to this file, for version 1.0.0 of this dataset. # # Original_Source_URL: # Description/Documentation lines begin with # # Data lines have no # # # Data_Type: Climate Reconstructions # Parameter_Keywords: air temperature # Dataset_DOI: # #------------------ # Contribution_Date # Date: 2020-04-15 #------------------ # File_Last_Modified_Date # Date: 2020-08-12 #------------------ # Title # Study_Name: Talkin Tarn Surface Air Temperature Reconstructions over the Past 6000 Years #------------------ # Investigators # Investigators: Langdon, P.G.; Barber, K.E.; Lomas-Clarke (previously Morriss), S.H. #------------------ # Description_Notes_and_Keywords # Description: 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. #------------------ # Publication # Authors: Langdon, P.G.; Barber, K.E.; Lomas-Clarke (previously Morriss), S.H. # Published_Date_or_Year: 2004 # Published_Title: Reconstructing climate and environmental change in northern England through chironomid and pollen analyses: Evidence from Talkin Tarn, Cumbria # Journal_Name: Journal of Paleolimnology # Volume: 32 # Edition: # Issue: 2 # Pages: 197-213 # Report: # DOI: 10.1023/B:JOPL.0000029433.85764.a5 # Online_Resource: # Full_Citation: # Abstract: Chironomids have been used extensively for reconstructing past temperatures from the late glacial chronozone but far less work has focused on their use as temperature proxies throughout the Holocene, and little work has been undertaken within the UK. Northern England does have many detailed palaeoclimate records, although the majority of these are reconstructions from ombrotrophic peat bogs, which yield a combined temperature and precipitation proxy record. A lake sediment core from Talkin Tarn, dating back 6000 years, was therefore analysed for chironomid remains in an attempt to produce a Holocene temperature reconstruction. Although chironomids have been shown to respond to air temperature by many modern training sets, it is also known that they can respond to other environmental factors. Pollen and loss-on-ignition analyses were therefore undertaken to ascertain whether the lake had been subjected to major environmental changes. Some anthropogenic changes in land use were detected, which may have affected the lake water chemistry and sediments, but they seem to have had little direct impact on the chironomid fauna for the majority of the record. Part of the geology of the catchment is limestone, which suggests that the lake may be buffered against any changes in pH. A chironomid-inferred mean July temperature transfer function from a Norwegian training set was applied to the chironomid data and produced a reconstruction with significant fluctuations throughout the later Holocene, which were associated with cold and warm stenotherms within the assemblages. The uppermost chironomid sample from the lake core (less than 100 years old) has a reconstructed temperature of 14.6 °C (± sample-specific error of 1.18 °C), which compares well with the contemporary mean July average of 14.8 °C. It is therefore concluded that chironomids can be used to reconstruct Holocene temperature, provided the site is well-buffered in relation to pH changes and can be shown not to have been influenced to any great extent by anthropogenic disturbance. #------------------ # Publication # Authors: Kaufman, D., N. McKay, C. Routson, M. Erb, B. Davis, O. Heiri, S. Jaccard, J. Tierney, C. Dätwyler, Y. Axford, T. Brussel, O. Cartapanis, B. Chase, A. Dawson, A. de Vernal, S. Engels, L. Jonkers, J. Marsicek, P. Moffa-Sánchez, C. Morrill, A. Orsi, K. Rehfeld, K. Saunders, P. S. Sommer, E. Thomas, M. Tonello, M. Tóth, R. Vachula, A. Andreev, S. Bertrand, B. Biskaborn, M. Bringué, S. Brooks, M. Caniupán, M. Chevalier, L. Cwynar, J. Emile-Geay, J. Fegyveresi, A. Feurdean, W. Finsinger, M-C. Fortin, L. Foster, M. Fox, K. Gajewski, M. Grosjean, S. Hausmann, M. Heinrichs, N. Holmes, B. Ilyashuk, E. Ilyashuk, S. Juggins, D. Khider, K. Koinig, P. Langdon, I. Larocque-Tobler, J. Li, A. Lotter, T. Luoto, A. Mackay, E. Magyari, S. Malevich, B. Mark, J. Massaferro, V. Montade, L. Nazarova, E. Novenko, P. Paril, E. Pearson, M. Peros, R. Pienitz, M. Plóciennik, D. Porinchu, A. Potito, A. Rees, S. Reinemann, S. Roberts, N. Rolland, S. Salonen, A. Self, H. Seppä, S. Shala, J-M. St-Jacques, B. Stenni, L. Syrykh, P. Tarrats, K. Taylor, V. van den Bos, G. Velle, E. Wahl, I. Walker, J. Wilmshurst, E. Zhang, S. Zhilich # Published_Date_or_Year: 2020-04-14 # Published_Title: A global database of Holocene paleotemperature records # Journal_Name: Scientific Data # Volume: 7 # Edition: 115 # Issue: # Pages: # Report_Number: # DOI: 10.1038/s41597-020-0445-3 # Online_Resource: https://www.nature.com/articles/s41597-020-0445-3 # Full_Citation: # Abstract: A comprehensive database of paleoclimate records is needed to place recent warming into the longer-term context of natural climate variability. We present a global compilation of quality-controlled, published, temperature-sensitive proxy records extending back 12,000 years through the Holocene. Data were compiled from 679 sites where time series cover at least 4000 years, are resolved at sub-millennial scale (median spacing of 400 years or finer) and have at least one age control point every 3000 years, with cut-off values slackened in data-sparse regions. The data derive from lake sediment (51%), marine sediment (31%), peat (11%), glacier ice (3%), and other natural archives. The database contains 1319 records, including 157 from the Southern Hemisphere. The multi-proxy database comprises paleotemperature time series based on ecological assemblages, as well as biophysical and geochemical indicators that reflect mean annual or seasonal temperatures, as encoded in the database. This database can be used to reconstruct the spatiotemporal evolution of Holocene temperature at global to regional scales, and is publicly available in Linked Paleo Data (LiPD) format. #------------------ # Funding_Agency # Funding_Agency_Name: # Grant: #------------------ # Site_Information # Site_Name: Talkin Tarn # Location: Europe>Northern Europe>British Isles>United Kingdom # Country: United Kingdom # Northernmost_Latitude: 54.92 # Southernmost_Latitude: 54.92 # Easternmost_Longitude: -2.71 # Westernmost_Longitude: -2.71 # Elevation: 130 #------------------ # Data_Collection # Collection_Name: TalkinTarn.Langdon.2004 # Earliest_Year: 5758.571 # Most_Recent_Year: 121.316 # Time_Unit: cal yr BP # Core_Length: # Notes: #------------------ # Species # Species_Name: # Species_Code: # Common_Name: #------------------ # Chronology_Information # Chronology: # age_type Top Depth of Date Bottom Depth of Date age 1SD Include Additional Notes # Core top 0.0 0.0 0.0 nan Y nan # pollen strat 10.0 10.0 150.0 20.0 Y Increase in pine pollen percentages (Barber et al 1998 # age14C 24.0 24.0 2440.0 40.0 N nan # age14C 34.0 34.0 2340.0 40.0 N nan # age14C 46.0 46.0 2010.0 40.0 N nan # age14C 58.0 58.0 1600.0 50.0 Y nan # age14C 74.0 74.0 1670.0 40.0 Y nan # age14C 90.0 90.0 3640.0 40.0 N nan # age14C 106.0 106.0 3050.0 40.0 N nan # age14C 117.0 117.0 2660.0 50.0 Y nan # age14C 138.0 138.0 3040.0 40.0 Y nan #------------------ # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ## OriginalSampleID sample identification,,,,,insect;paleolimnology;climate reconstructions,,,C,OriginalSampleID ## age age,,,calendar year before present,,insect;paleolimnology;climate reconstructions,,,N, ## temperature surface air temperature,midge assemblage,,degree Celsius,Jul,insect;paleolimnology;climate reconstructions,,,N,153-lake Norwegian training set (Brooks and Birks 2000; 2001) ## uncertaintyHigh surface air temperature,midge assemblage,unspecified error upper bound,degree Celsius,Jul,insect;paleolimnology;climate reconstructions,,,N, ## uncertaintyLow surface air temperature,midge assemblage,unspecified error lower bound,degree Celsius,Jul,insect;paleolimnology;climate reconstructions,,,N, # #------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: nan # OriginalSampleID age temperature uncertaintyHigh uncertaintyLow 121.316 121.316 14.584 15.7676 13.401 366.414 366.414 13.959 15.1691 12.749 488.963 488.963 14.029 15.3169 12.742 611.512 611.512 13.789 15.016 12.563 856.61 856.61 14.184 15.408 12.959 979.159 979.159 14.079 15.3477 12.811 1101.708 1101.708 13.09 14.2512 11.928 1224.257 1224.257 13.463 14.6266 12.3 1346.806 1346.806 13.029 14.2238 11.834 1591.904 1591.904 12.909 14.1222 11.696 1837.002 1837.002 12.32 13.4604 11.18 1959.551 1959.551 13.624 14.7647 12.484 2082.1 2082.1 13.843 15.0069 12.678 2204.65 2204.65 13.129 14.29 11.967 2327.199 2327.199 14.138 15.3709 12.906 2449.748 2449.748 13.828 15.068 12.589 2523.277 2523.277 13.499 15.0145 11.983 2572.297 2572.297 12.124 13.3272 10.921 2694.846 2694.846 14.136 15.3472 12.925 2768.375 2768.375 12.571 13.687 11.455 2817.395 2817.395 13.932 15.1737 12.691 3062.493 3062.493 13.611 14.874 12.348 3307.591 3307.591 13.04 14.2396 11.841 3552.689 3552.689 13.29 14.6506 11.929 3797.787 3797.787 13.815 14.9681 12.661 3920.336 3920.336 12.698 13.9447 11.451 4042.885 4042.885 13.472 14.5978 12.347 4287.983 4287.983 13.66 14.8866 12.434 4533.081 4533.081 13.331 14.5726 12.089 4778.179 4778.179 13.277 14.4657 12.088 5023.277 5023.277 13.456 14.6681 12.243 5268.375 5268.375 14.115 15.4226 12.807 5513.473 5513.473 13.919 15.2892 12.549 5758.571 5758.571 13.345 14.8403 11.851