# Coastal Northernmost California Diatom, Silicoflagellates, and Pollen Data for the last 7300 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/30052 # 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/TN062-0550.Barron.2018-3.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_NOAA_files/TN062-0550.Barron.2018.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: Paleoceanography # Parameter_Keywords: population abundance # Dataset_DOI: # #------------------ # Contribution_Date # Date: 2020-04-15 #------------------ # File_Last_Modified_Date # Date: 2020-05-18 #------------------ # Title # Study_Name: Coastal Northernmost California Diatom, Silicoflagellates, and Pollen Data for the last 7300 years #------------------ # Investigators # Investigators: Barron, John A.; Bukry, David; Heusser, Linda E.; Addison, Jason A.; Alexander, Clark R. #------------------ # Description_Notes_and_Keywords # Description: Metadata are from the Temperature-12k project (https://doi.org/10.25921/4RY2-G808). Data are from the supplemental material of Barron et al. 2018 (https://doi.org/10.1016/j.quaint.2016.10.039). #------------------ # Publication # Authors: Barron, John A.; Bukry, David; Heusser, Linda E.; Addison, Jason A.; Alexander, Clark R. # Published_Date_or_Year: 2018 # Published_Title: High-resolution climate of the past ~7300 years of coastal northernmost California: Results from diatoms, silicoflagellates, and pollen # Journal_Name: Quaternary International # Volume: 469 # Edition: # Issue: # Pages: 109-119 # Report: # DOI: 10.1016/j.quaint.2016.10.039 # Online_Resource: # Full_Citation: # Abstract: Piston core TN062-O550, collected about 33 km offshore of Eureka, California, contains a high-resolution record of the climate and oceanography of coastal northernmost California during the past ~7.34 kyr. Chronology established by nine AMS ages on a combination of planktic foraminifers, bivalve shell fragments, and wood yields a mean sedimentation rate of 103 cm kyr-1. Marine proxies (diatoms and silicoflagellates) and pollen transported by the nearby Eel River reveal a stepwise development of both modern offshore surface water oceanography and coastal arboreal ecosystems. Beginning at ~5.4 cal ka the relative abundance of coastal redwood pollen, a proxy for coastal fog, displays a two fold increase suggesting enhanced coastal upwelling. A decline in the relative contribution of subtropical diatoms at ~5.0 cal ka implies cooling of sea surface temperatures (SSTs). At ~3.6 cal ka an increase in the relative abundance of alder and oak at the expense of coastal redwood likely signals intensified riverine transport of pollen from inland environments. Cooler offshore SSTs and increased precipitation characterize the interval between ~3.6 and 2.8 cal ka. A rapid, stepwise change in coastal climatology and oceanography occurs between ~2.8 and 2.6 cal ka that suggests an enhanced expression of modern Pacific Decadal Oscillation-like (PDO) cycles. A three-fold increase in the relative abundance of the subtropical diatom Fragilariopsis doliolus at 2.8 cal ka appears to mark an abrupt warming of winter SSTs. Soon afterwards at 2.6 cal ka, a two fold increase in the relative abundance of coastal redwood pollen is suggestive of an abrupt intensification of spring upwelling. After ~2.8 cal ka a sequence of cool-warm, PDO-like cycles occurs wherein cool cycles are characterized by relative abundance increases in coastal redwood pollen and decreased contributions of subtropical diatoms, whereas opposite proxy trends distinguish warm cycles. #------------------ # 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: TN062-O550 # Location: Pacific Ocean>North Pacific Ocean # Country: # Northernmost_Latitude: 40.8656 # Southernmost_Latitude: 40.8656 # Easternmost_Longitude: -124.573 # Westernmost_Longitude: -124.573 # Elevation: -569 #------------------ # Data_Collection # Collection_Name: TN062-0550.Barron.2018 silicoflagellate # Earliest_Year: 6300.0 # Most_Recent_Year: 220.0 # Time_Unit: cal yr BP # Core_Length: # Notes: #------------------ # Species # Species_Name: # Species_Code: # Common_Name: #------------------ # Chronology_Information # Chronology: #core_id samp_id depth_cm c14_date c14_1s_err deltaR deltaR_1s mat_dated cal_age_lo cal_age_hi rejected # TN062-O550BX nan 0 nan nan nan nan Sediment-water interface (AD 1996) nan nan no # TN062-O450A OS-27239 75 840 30 nan nan Wood fragment 810 870 no # TN062-O550 OS-32046 128.5 1770 70 316 86 Planktic foraminifera (mixed) 1700 1840 no # TN062-O550 OS-31947 nan 2290 80 nan nan Benthic foraminifera (Uvigerina peregrina) 2210 2370 yes # TN062-O475 OS-27148 209 3090 35 316 86 Bivalve shell 3055 3125 no # TN062-O550 OS-32055 328.5 3750 75 316 86 Planktic foraminifera (mixed) 3675 3825 no # TN062-O550 OS-30949 nan 4490 35 nan nan Benthic foraminifera (U. peregrina) 4455 4525 yes # TN062-O475 OS-27149 374 3950 60 316 86 Bivalve shell 3890 4010 no # TN062-O450A OS-27240 390 3720 40 nan nan Wood fragment 3680 3760 no # TN062-Q400 OS-32049 643 6430 90 316 86 Planktic foraminifera (mixed) 6340 6520 no # TN062-Q450 OS-27018 650 6680 170 316 86 Planktic foraminifera (Neogloboquadrina pachyderma) 6510 6850 no # TN062-O550 OS-32052 696.5 7030 120 316 86 Planktic foraminifera (mixed) 6910 7150 no # TN062-O550 OS-31594 nan 7760 65 nan nan Benthic foraminifera (U. peregrina) 7695 7825 yes #------------------ # 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) # ##depth_top depth at sample end,,,centimeter,,paleoceanography,,,N, ##depth_bot depth at sample start,,,centimeter,,paleoceanography,,,N ##depth depth,,,centimeter,,paleoceanography,,,N, ##age age,,,calendar kiloyear before present,,paleoceanography,,,N, ##Dict.sp identified silicoflagellate,,,percent,,paleoceanography,,,N,Dictyocha sp. aff. D. aculeata ##D.brev identified silicoflagellate,,,percent,,paleoceanography,,,N,Dc. brevispina ##D.cali identified silicoflagellate,,,percent,,paleoceanography,,,N,Dc. calida+ampliata ##D.perl identified silicoflagellate,,,percent,,paleoceanography,,,N,Dc. perlaevis ##D.stap identified silicoflagellate,,,percent,,paleoceanography,,,N,Dc. stapedia ##D.stap.a identified silicoflagellate,,,percent,,paleoceanography,,,N,Dc. stapedia aspinosa ##D.stap.s identified silicoflagellate,,,percent,,paleoceanography,,,N,Dc. stapedia spinosa ##S.octa identified silicoflagellate,,,percent,,paleoceanography,,,N,Stephanocha octangulata ##S.quin identified silicoflagellate,,,percent,,paleoceanography,,,N,S. quinquangella ##S.spec.e identified silicoflagellate,,,percent,,paleoceanography,,,N,S. speculum var. elongata ##S.spec.m identified silicoflagellate,,,percent,,paleoceanography,,,N,S. speculum var. minutus ##S.spec.o identified silicoflagellate,,,percent,,paleoceanography,,,N,S. speculum var. ornamentata ##S.spec.s identified silicoflagellate,,,percent,,paleoceanography,,,N,S. speculum s.s. ##O.pulc identified silicoflagellate,,,percent,,paleoceanography,,,N,Octactis pulchra ##rework identified silicoflagellate,,,percent,,paleoceanography,,,N,Reworked ##total_sil total silicoflagellates,,,count,,paleoceanography,,,N,Total counted # #------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: nan # depth_top depth_bot depth age Dict.sp D.brev D.cali D.perl D.stap D.stap.a D.stap.s S.octa S.quin S.spec.e S.spec.m S.spec.o S.spec.s O.pulc rework total_sil 0 1 0.5 0.22 5.0 0.0 0.0 0.0 20.0 0.0 0.0 0.0 0.0 0.0 45.0 0.0 28.8 1.3 0.0 80 4 5 4.5 0.26 9.2 0.0 0.0 0.0 26.2 0.0 3.1 0.0 0.0 0.0 41.5 0.0 20.0 0.0 0.0 65 31 33 32 0.55 2.0 0.0 0.0 0.0 15.0 0.0 1.0 0.0 0.0 0.0 54.0 0.0 28.0 0.0 0.0 100 59 60 59.5 0.79 3.6 0.0 0.0 1.8 23.2 0.0 7.1 1.8 0.0 0.0 46.4 0.0 16.1 0.0 0.0 56 83.5 84.5 84.0 0.91 6.5 0.0 0.0 0.0 23.9 0.0 6.5 0.0 2.2 0.0 45.7 0.0 15.2 0.0 0.0 46 110 111 110.5 1.14 3.7 0.0 0.0 0.0 25.9 0.0 3.7 3.7 0.0 0.0 51.9 0.0 11.1 0.0 0.0 27 120 121 120.5 1.33 13.2 0.0 0.0 0.0 20.8 0.0 11.3 1.9 0.0 0.0 35.8 0.0 17.0 0.0 0.0 53 129 130 129.5 1.50 12.7 0.0 0.0 0.0 23.6 0.0 7.3 0.0 0.0 0.0 43.6 0.0 12.7 0.0 0.0 55 134 135 134.5 1.59 23.5 0.0 0.0 0.0 23.5 0.0 2.9 5.9 0.0 0.0 32.4 0.0 11.8 0.0 0.0 34 139 140 139.5 1.68 18.0 0.0 0.0 0.0 36.0 0.0 8.0 4.0 0.0 0.0 18.0 0.0 16.0 0.0 0.0 50 149 150 149.5 1.87 20.0 0.0 0.0 0.0 28.0 0.0 5.0 3.0 0.0 0.0 27.0 0.0 17.0 0.0 0.0 100 179 180 179.5 2.43 18.0 0.0 0.0 0.0 16.0 0.0 8.0 4.0 0.0 0.0 44.0 0.0 10.0 0.0 0.0 50 189 190 189.5 2.55 20.5 0.0 0.0 0.0 12.8 0.0 0.0 5.1 0.0 0.0 38.5 0.0 23.1 0.0 0.0 39 194 195 194.5 2.58 16.0 0.0 0.0 0.0 24.0 0.0 2.0 4.0 0.0 0.0 42.0 2.0 10.0 0.0 0.0 50 209 210 209.5 2.68 15.8 0.0 0.0 0.0 15.8 0.0 3.5 3.5 0.0 0.0 45.6 0.0 15.8 0.0 0.0 57 239 240 239.5 2.86 25.8 0.0 0.0 0.0 25.8 0.0 0.0 6.5 0.0 0.0 22.6 3.2 16.1 0.0 0.0 31 264 265 264.5 3.02 27.5 0.0 0.0 0.0 17.5 0.0 2.5 2.5 0.0 0.0 40.0 0.0 10.0 0.0 0.0 40 289 290 289.5 3.18 7.5 0.0 0.0 0.0 22.5 0.0 2.5 7.5 0.0 0.0 52.5 0.0 7.5 0.0 0.0 40 297.5 299.5 298.5 3.23 3.8 0.0 0.0 0.0 23.1 0.0 3.8 11.5 0.0 0.0 46.2 0.0 11.5 0.0 0.0 26 398 400 399 4.41 4.3 0.0 0.0 0.0 10.9 0.0 6.5 0.0 0.0 0.0 43.5 2.2 32.6 0.0 0.0 46 407 409 408 4.50 3.3 0.0 0.0 0.0 10.0 0.0 3.3 0.0 0.0 0.0 33.3 0.0 50.0 0.0 0.0 30 418 420 419 4.60 2.0 0.0 0.0 0.0 10.0 0.0 10.0 2.0 0.0 0.0 30.0 0.0 46.0 0.0 0.0 50 448 450 449 4.89 4.0 0.0 0.0 0.0 10.0 0.0 0.0 0.0 0.0 0.0 38.0 0.0 48.0 0.0 0.0 50 458 460 459 4.99 2.9 0.0 0.0 0.0 8.8 0.0 2.9 0.0 0.0 0.0 47.1 0.0 38.2 0.0 0.0 34 488 490 489 5.28 2.4 0.0 0.0 0.0 9.8 0.0 2.4 0.0 0.0 0.0 43.9 0.0 41.5 0.0 0.0 41 498 500 499 5.38 4.8 0.0 0.0 0.0 4.8 0.0 4.8 0.0 0.0 0.0 38.1 0.0 47.6 0.0 0.0 21 508 510 509 5.47 10.3 0.0 0.0 0.0 17.9 0.0 0.0 0.0 0.0 0.0 41.0 0.0 30.8 0.0 0.0 39 518 520 519 5.57 12.1 0.0 0.0 0.0 12.1 0.0 3.0 0.0 0.0 0.0 60.6 3.0 9.1 0.0 0.0 33