# Northern Hemisphere Holocene Latitudinal Temperature Reconstructions #----------------------------------------------------------------------- # 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/25890 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/routson2019/routson2019hydro-meta.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Climate Reconstructions # # Dataset DOI: # # Parameter_Keywords: air temperature #-------------------- # Contribution_Date # Date: 2019-03-27 #-------------------- # File_Last_Modified_Date # Date: 2019-03-27 #-------------------- # Title # Study_Name: Northern Hemisphere Holocene Latitudinal Temperature Reconstructions #-------------------- # Investigators # Investigators: Routson, C.C.; McKay, N.P.; Kaufman, D.S.; Erb, M.P.; Goosse, H.; Shuman, B.N.; Rodysill, J.R.; Ault, T. #-------------------- # Description_Notes_and_Keywords # Description: Composite latitude band (10S to 90N) temperature reconstructions for the Northern Hemisphere and tropics for the past 9,900 years, plus underlying proxy records. # Latitudinal temperature composites and proxy data and metadata are in Table S1. Mid-latitude hydroclimate proxy data and metadata are in Table S2. # # TableS1.xlsx contains: # 1.) metadata for each proxy record used in this analysis (PLEASE CITE ORIGINAL AUTHORS WHEN USING THEIR DATA). # 2.) Full references for each proxy record listed in the metadata tab # 3.) Data presented in Figure 3 including zonal temperature composites, latitudinal temperature gradient calculations, latitudinal insolation gradient, and mid-latitude hydroclimate composite # 4.) Raw temperature records as used in this study. Tabs/files are labeled by Site.Author.Year. These data include age and temperature reconstruction columns. # Some of these records were obtained from other syntheses efforts (e.g. Marcott et al., 2013) and the associated data (potentially not the original age model) are included here. # # TableS2.xlsx contains: # 1.) metadata for each proxy record used in this analysis (PLEASE CITE ORIGINAL AUTHORS WHEN USING THEIR DATA). # 2.) Full references for each proxy record listed in the metadata tab # 3.) Site level hydroclimate records used in this study. Tabs/files are labeled Site.Author.PubYear. These data include age and hydroclimate reconstruction columns. # Some of these records were obtained from other syntheses efforts and the associated data (potentially not the original age model) are included here. # Site names with “*” indicate records that are calibrated in units of mm/yr. # # Proxy Abreviations: # nitrogen 15 isotopes/argon 40 isotopes (15N/40AR) # glycerol dialkyle glycerol tetraethers (GDGT) # long chain diol index (LDI) # magnesium/calcium (Mg/Ca) # tree-ring width (TRW) # carbon 13 isotopes (d13C) # oxygen 18 isotopes (d18O) # loss on ignition (LOI) # strontium/calcium (Sr/Ca) # deuterium isotopes of leaf wax (dD) # records composed of two or more proxy types (hybrid) # #-------------------- # Publication # Authors: Cody C. Routson, Nicholas P. McKay, Darrell S. Kaufman, Michael P. Erb, Hugues Goosse, Bryan N. Shuman, Jessica R. Rodysill, Toby Ault # Published_Date_or_Year: 2019-03-27 # Published_Title: Mid-latitude net precipitation decreased with Arctic warming during the Holocene # Journal_Name: Nature # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: 10.1038/s41586-019-1060-3 # Online_Resource: https://www.nature.com/articles/s41586-019-1060-3 # Full_Citation: # Abstract: The latitudinal temperature gradient between the Equator and the poles influences atmospheric stability, the strength of the jet stream and extratropical cyclones. Recent global warming is weakening the annual surface gradient in the Northern Hemisphere by preferentially warming the high latitudes; however, the implications of these changes for mid-latitude climate remain uncertain. Here we show that a weaker latitudinal temperature gradient - that is, warming of the Arctic with respect to the Equator - during the early to middle part of the Holocene coincided with substantial decreases in mid-latitude net precipitation (precipitation minus evapotranspiration, at 30 N to 50 N). We quantify the evolution of the gradient and of mid-latitude moisture both in a new compilation of Holocene palaeoclimate records spanning from 10 S to 90 N and in an ensemble of mid-Holocene climate model simulations. The observed pattern is consistent with the hypothesis that a weaker temperature gradient led to weaker mid-latitude westerly flow, weaker cyclones and decreased net terrestrial mid-latitude precipitation. Currently, the northern high latitudes are warming at rates nearly double the global average, decreasing the Equator-to-pole temperature gradient to values comparable with those in the early to middle Holocene. If the patterns observed during the Holocene hold for current anthropogenically forced warming, the weaker latitudinal temperature gradient will lead to considerable reductions in mid-latitude water resources. #------------------ # Funding_Agency # Funding_Agency_Name: Science Foundation Arizona Bisgrove Scholar # Grant: BP 0544-13 #------------------ # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: AGS-1602105, EAR-1347221 #------------------ # Funding_Agency # Funding_Agency_Name: State of Arizona Technology and Research Initiative Fund # Grant: #------------------ # Funding_Agency # Funding_Agency_Name: USGS Climate and Land Use Program # Grant: #------------------ # Site_Information # Site_Name: Northern Hemisphere and Tropics # Location: Geographic Region>Northern Hemisphere # Country: # Northernmost_Latitude: 90 # Southernmost_Latitude: -10 # Easternmost_Longitude: 180 # Westernmost_Longitude: -180 # Elevation: #------------------ # Data_Collection # Collection_Name: Routson2019 # Earliest_Year: 9900 # Most_Recent_Year: 100 # Time_Unit: Cal. Year BP # Core_Length: # Notes: #------------------ # Chronology_Information # Chronology: # #---------------- # Hydroclimate metadata # # PLEASE CITE ORIGINAL AUTHORS WHEN USING THEIR DATA Site Name Lat. Lon. Elev. (m) Proxy Archive Season Reference (°) (°) Hulun Lake 49.13 117.50 541 pollen lake sediment annual 1 Oro Lake 49.78 -105.33 686 diatom lake sediment annual 2 Lime Lake 48.87 -117.34 781 d18O lake sediment winter 3 Lime Lake 48.87 -117.34 781 d13C lake sediment winter 3 Telmen 48.83 97.33 1789 hybrid lake sediment not specified 4 Castor Lake 48.54 -119.56 594 reflectance lake sediment annual 5 Foy Lake 48.20 -114.40 1006 diatom lake sediment not specified 6 Ammersee 48.00 11.12 533 stratigraphy lake sediment annual 7 Lake Mondsee 47.81 13.40 481 varve lake sediment spring-fall 8 Faelen 47.25 9.42 1446 stratigraphy lake sediment spring/fall 9 Baldegg 47.20 8.26 463 stratigraphy lake sediment spring/fall 9 Lake Hinterer Schwendisee 47.19 9.33 1159 stratigraphy lake sediment spring/fall 9 Jones Lake 47.05 -113.14 1248 d18O lake sediment annual 10 Seelisberg 46.96 8.57 740 stratigraphy lake sediment spring/fall 9 Glattalp 46.92 8.90 1850 stratigraphy lake sediment spring/fall 9 Hinterburg 46.72 8.07 1514 stratigraphy lake sediment spring/fall 9 Grimsel 46.57 8.33 1908 stratigraphy lake sediment spring/fall 9 South Rhody Bog 46.56 -86.07 289 testate bog sediment annual 11 Cadagno 46.55 8.71 1921 stratigraphy lake sediment spring/fall 9 Iffig 46.39 7.41 2065 stratigraphy lake sediment spring/fall 9 Alzasca 46.27 8.59 1855 stratigraphy lake sediment spring/fall 9 Ghirla 45.90 8.82 415 stratigraphy lake sediment spring/fall 9 Ledro 45.88 10.75 655 stratigraphy lake sediment spring/fall 9 Irwin Smith Bog 45.03 -83.62 223 omeba bog sediment annual 11 Rainbow Lake 44.94 -109.50 2960 stratigraphy lake sediment annual 12 *Path Lake 43.87 -64.93 15 pollen lake sediment annual 13 Balikun 43.67 93.00 1585 pollen lake sediment not specified 14 Lions 43.51 3.87 -1 mineral lagoon sediment annual 15 *Lake of the Woods 43.48 -109.89 2820 stratigraphy lake sediment annual 16 Cueva de Asiul 43.32 3.59 285 d18O speleothem annual 17 *Lago Dell Accesa 42.99 10.90 157 pollen lake sediment summer 18 *Little Royalston 42.68 -72.19 302 pollen lake sediment annual 19 Berry Pond 42.51 -73.32 631 dD lake sediment summer 20 Beaver Lake 42.46 -100.67 905 diatom lake sediment annual 21 *Yak Yakumo 42.28 140.26 0 pollen lake sediment annual 22 *Davis Lake 42.14 -73.41 214 stratigraphy lake sediment annual 23 Minnetonka Cave 42.09 -111.52 2347 d13C speleothem winter 24 Oregon Caves 42.08 -123.42 1390 d13C speleothem winter 25 *Blood Pond 42.08 -71.96 214 pollen lake sediment annual 19 Bosten 42.00 87.02 1048 hybrid lake sediment not specified 4 *Duck Pond 41.93 -70.00 3 pollen lake sediment annual 19 *New Long Pond 41.83 -70.67 29 stratigraphy lake sediment annual 23 *Mohawk Pond 41.82 -73.28 360 pollen lake sediment annual 19 Juyanze 41.80 101.80 892 pollen lake sediment not specified 4 Sonk11D 41.79 75.20 3016 dD lake sediment annual 26 ODP1019 41.68 -124.93 -980 pollen marine sediment annual 27 Deep Lake 41.56 -70.64 23 stratigraphy lake sediment annual 19 *Deep Lake 41.56 -70.64 23 pollen lake sediment annual 19 Crooked Pond 41.53 -70.38 32 chironomid lake sediment annual 28 *Little Windy 41.43 -106.33 2983 stratigraphy lake sediment annual 29 *No Bottom Lake 41.29 -70.11 8 pollen lake sediment annual 19 *Rogers Lake 41.21 -72.17 12 pollen lake sediment annual 19 Upper Big Creek Lake 40.91 -106.62 2750 stratigraphy lake sediment annual 30 Hidden 40.51 -106.61 2708 stratigraphy lake sediment annual 31 Pyramid Lake 40.07 -119.58 1156 d18O lake sediment annual 32 Bison Lake 39.76 -107.35 3255 d18O lake sediment winter 33 Yellow Lake 39.65 -107.35 3170 d18O lake sediment winter 34 Emerald 39.15 -106.41 3053 stratigraphy lake sediment annual 35 Lake Van 38.40 43.20 1648 varves lake sediment not specified 4 Kirman Lake 38.34 -119.50 2174 diatom/depth lake sediment annual 36 Kirman Lake 38.34 -119.50 2174 diatom/salinity lake sediment annual 36 Buckeye Creek 37.98 -80.40 600 SrCa speleothem annual 37 Neor 37.96 48.56 2500 dD peat annual 38 San Luis Lake 37.68 -105.72 2293 d13C lake sediment annual 39 Owens Lake 36.44 -117.97 1085 d18O lake sediment annual 32 Lower Bear Lake 34.20 -116.90 2059 LOI lake sediment winter 40 Elsinore 33.67 -117.35 379 particle size lake sediment annual 41 Hovsgol Nuur 32.77 102.52 3527 peat ash bog sediment winter 42 GeoB7622-2 32.10 10.10 -1305 particle size marine sediment winter 43 Soreq Cave 31.45 35.03 680 d18O speleothem annual 44 Lehman Caves 30.01 -114.22 2130 Mg/Ca speleothem winter 45 Lehman Caves 30.01 -114.22 2130 d13C speleothem winter 45