# 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.2018-1.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 pollen # Earliest_Year: 6231.4 # Most_Recent_Year: 284.48 # 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) # ##labcode sample identification,,,,,pollen,,,N, ##depth_top depth at sample end,,,centimeter,,pollen,,,N, ##depth_bot depth at sample start,,,centimeter,,pollen,,,N ##depth depth,,,centimeter,,pollen,,,N, ##age age,,,calendar kiloyear before present,,pollen,,,N, ##Pinus identified pollen,,,percent,,pollen,,,N,Pinus ##Picea identified pollen,,,percent,,pollen,,,N,Picea ##T.heter identified pollen,,,percent,,pollen,,,N,Tsuga heterophylla ##Abies identified pollen,,,percent,,pollen,,,N,Abies ##Inaper identified pollen,,,percent,,pollen,,,N,Inaperturate ##Sequoia identified pollen,,,percent,,pollen,,,N,Sequoia ##Quercus identified pollen,,,percent,,pollen,,,N,Quercus ##Ptsuga identified pollen,,,percent,,pollen,,,N,Pseudotsuga ##Alnus identified pollen,,,percent,,pollen,,,N,Alnus ##Gramin identified pollen,,,percent,,pollen,,,N,Gramineae ##Cyper identified pollen,,,percent,,pollen,,,N,Cyperaceae ##Chenopod identified pollen,,,percent,,pollen,,,N,Chenopodiaceae ##Compos identified pollen,,,percent,,pollen,,,N,Compositeae ##total_pol total pollen,,,count,,pollen,,,N,total pollen counted # #------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: nan # labcode depth_top depth_bot depth age Pinus Picea T.heter Abies Inaper Sequoia Quercus Ptsuga Alnus Gramin Cyper Chenopod Compos total_pol 30456 5.5 7.5 6.5 0.28 16 1 1 1 7 29 4 3 24 7 2 1 4 379 30457 12 14 13.0 0.35 13 1 1 0 6 31 8 3 22 6 1 1 7 304 30458 16.5 18.5 17.0 0.39 13 4 0 1 7 42 4 3 14 4 0 1 6 319 30459 21.5 23.5 22.5 0.45 16 2 2 1 6 40 4 2 13 4 2 3 4 323 30460 26 28 27.0 0.50 14 2 0 1 6 44 3 5 16 3 1 3 3 347 30461 31 33 32.0 0.55 13 2 1 0 8 43 4 3 15 4 1 2 4 337 30462 36 38 37.0 0.60 13 2 1 0 3 47 6 2 15 5 0 1 4 310 30463 41 43 42.0 0.66 17 2 1 1 2 38 6 1 19 6 1 3 5 364 30464 46 48 47.0 0.71 22 5 1 2 3 46 3 2 8 2 1 2 2 332 30465 51 53 52.0 0.75 22 5 2 1 3 42 3 3 11 2 0 2 4 456 30466 56 58 57.0 0.78 20 5 2 1 2 48 3 3 9 3 1 1 2 327 30467 61 63 62.0 0.80 21 5 1 1 2 41 4 3 14 1 0 3 4 357 30468 66 68 67.0 0.83 22 6 1 0 3 41 4 4 9 3 1 2 3 346 30469 71 73 72.0 0.85 19 6 2 1 3 39 5 3 11 2 1 3 5 375 30470 76 78 77.0 0.88 25 4 3 1 6 39 6 4 5 3 1 1 3 354 30471 81 83 82.0 0.90 21 5 2 0 2 42 6 3 11 1 1 2 2 346 30472 86 8 87.0 0.93 14 4 2 0 5 40 7 2 14 4 0 2 6 330 30473 91 93 92.0 0.95 16 4 2 2 4 41 3 3 16 2 1 2 5 340 30474 96 98 97.0 0.98 13 3 1 0 6 45 4 1 14 2 1 2 7 336 30475 101 103 102.0 1.01 19 5 1 1 4 40 4 3 13 3 0 3 5 358 30476 106 108 107.0 1.08 16 2 1 1 6 46 6 3 9 2 1 3 5 329 30477 111 113 112.0 1.17 10 2 0 0 5 47 6 2 14 4 1 3 5 436 30478 116 118 117.0 1.27 24 6 1 1 3 38 3 4 9 2 1 1 6 385 30479 121 123 122.0 1.36 27 5 1 1 6 43 3 1 7 2 1 0 2 319 30480 125.5 127.5 126.5 1.44 18 3 1 1 3 43 4 3 15 2 0 2 6 333 30481 131 133 132.0 1.55 17 4 1 1 3 42 6 4 12 4 0 2 4 331 30482 136 138 137.0 1.64 24 7 2 1 3 35 5 5 7 2 1 2 6 346 30483 141 143 142.0 1.73 26 9 2 2 4 30 5 5 10 1 0 1 5 434 30484 146 148 147.0 1.82 23 6 2 1 4 35 5 3 11 4 1 1 5 449 30485 151 153 152.0 1.92 27 7 1 2 4 27 5 6 11 2 1 2 4 475 451 159 161 160.0 2.07 21 6 2 2 6 32 6 4 15 1 0 2 3 316 452 165 167 166.0 2.18 20 7 1 1 5 37 9 2 11 2 0 1 5 323 453 171 173 172.0 2.29 15 3 2 3 5 45 6 4 9 1 0 2 5 306 454 177 179 176.0 2.37 19 3 2 2 5 34 13 4 10 2 1 0 5 315 455 182 184 183.0 2.50 15 7 4 1 3 39 11 4 10 1 0 1 4 305 456 187 189 188.0 2.54 14 5 3 0 4 30 15 1 22 1 0 1 3 319 457 192 194 193.0 2.57 21 4 6 0 5 22 12 3 19 1 0 2 6 305 458 196 198 197.0 2.60 13 6 2 1 2 24 15 1 26 2 0 4 5 399 459 203 205 204.0 2.64 17 4 1 1 2 23 16 3 22 1 0 2 7 309 460 208 210 209.0 2.67 13 2 2 0 5 25 17 4 21 0 0 3 7 303 461 213 215 214.0 2.70 15 3 1 1 3 24 18 3 23 0 0 2 7 324 462 218 220 219.0 2.74 12 6 2 2 6 24 14 1 22 2 0 3 7 326 463 222 224 223.0 2.76 19 4 2 1 3 21 20 2 19 1 0 2 6 303 464 227 229 228.0 2.79 14 3 1 1 4 23 20 1 23 2 0 3 6 316 465 232 234 233.0 2.82 20 3 1 1 1 22 20 4 19 1 0 3 6 308 466 238 240 239.0 2.86 14 3 2 1 5 24 24 2 18 0 0 2 6 313 467 243 245 244.0 2.89 14 4 2 1 3 21 20 4 20 0 0 4 7 301 468 247 249 248.0 2.92 11 4 1 1 4 19 19 2 23 2 0 4 10 395 469 253 255 254.0 2.96 12 8 1 1 3 24 18 3 21 1 0 2 6 309 470 258 260 259.0 2.99 19 9 2 2 3 16 20 3 15 1 0 1 9 314 471 263 265 264.0 3.02 15 7 1 2 2 19 24 3 12 1 0 3 11 301 472 268 270 269.0 3.05 16 8 1 3 5 20 17 3 15 0 0 2 10 311 473 272 275 273.0 3.08 15 5 1 2 3 14 18 5 21 3 0 3 11 306 474 278 280 279.0 3.11 17 9 1 2 4 21 16 2 22 0 0 1 6 303 475 283 285 284.0 3.15 19 8 1 2 3 20 18 4 16 0 0 1 7 309 476 288 290 289.0 3.18 14 7 1 2 4 18 14 4 25 0 0 2 8 308 477 292 294 293.0 3.20 17 7 1 1 4 21 19 2 17 1 0 2 7 309 478 297 299 298.0 3.23 15 8 1 2 2 26 14 4 18 1 0 2 7 307 479 309 311 310.0 3.31 22 11 0 2 2 22 11 3 15 0 0 1 9 306 480 317 319 318.0 3.37 15 6 1 4 3 17 15 2 23 0 0 2 10 316 481 327 329 328.0 3.43 20 7 1 2 3 18 15 2 21 2 0 1 9 301 482 337 339 338.0 3.50 17 6 1 0 5 19 18 3 19 3 0 2 8 313 483 347 349 348.0 3.57 15 6 1 2 3 18 16 2 21 1 0 8 7 319 484 357 359 358.0 3.86 19 10 3 1 5 23 12 4 14 2 0 2 5 323 485 367 369 368.0 4.10 16 10 4 2 5 22 11 4 14 1 0 2 8 334 486 377 379 378.0 4.20 25 13 4 2 5 22 10 4 8 2 0 1 4 310 487 nan nan 387.0 4.29 21 9 1 3 3 24 12 6 9 2 0 1 8 322 488 398 400 399.0 4.41 19 11 2 2 5 20 15 4 13 2 0 2 6 326 489 409 411 410.0 4.51 16 11 2 3 6 26 11 5 14 0 0 1 6 306 490 418 420 419.0 4.60 19 13 1 0 4 24 15 2 16 2 0 1 3 338 491 428 430 429.0 4.70 22 11 1 2 4 22 15 5 11 2 0 1 3 307 492 438 440 439.0 4.79 25 11 1 1 4 21 16 3 13 0 0 1 5 311 493 448 440 449.0 4.89 15 11 2 4 3 23 15 5 13 1 0 1 8 304 494 458 460 459.0 4.99 21 8 1 2 6 25 15 5 9 1 0 0 7 317 495 468 470 469.0 5.09 20 12 2 3 5 23 14 2 9 2 0 1 8 314 496 478 480 479.0 5.18 23 9 1 2 5 19 10 4 17 1 0 1 8 309 497 488 490 489.0 5.28 19 13 1 1 6 21 11 5 15 2 0 2 5 309 498 498 500 499.0 5.38 23 9 1 2 4 17 15 2 17 1 0 4 6 300 499 507 509 508.0 5.46 22 12 2 2 0 15 14 3 21 2 0 1 7 303 500 518 520 519.0 5.57 21 9 2 1 2 15 15 3 21 1 0 2 7 307 501 528 530 529.0 5.67 23 11 3 2 3 12 16 0 20 1 0 5 5 319 502 538 540 539.0 5.77 29 7 4 4 4 13 12 2 14 2 0 1 8 318 503 546 548 547.0 5.84 27 12 2 2 4 13 11 3 16 1 0 2 8 312 504 556 558 557.0 5.94 28 16 2 3 3 14 11 1 15 1 0 0 5 305 505 566 568 567.0 6.04 23 16 2 3 4 12 13 5 16 0 0 0 6 309 506 576 578 577.0 6.13 22 14 2 4 1 13 13 4 21 1 0 2 4 312 507 586 588 587.0 6.23 21 14 3 2 3 20 10 1 18 1 0 3 3 355 508 596 598 597.0 6.33 24 12 0 2 4 11 12 2 21 1 0 1 8 300 509 606 608 607.0 6.43 20 8 1 4 4 13 15 3 21 1 0 1 8 343 510 616 618 617.0 6.52 25 7 1 2 15 22 3 15 1 0 1 6 307 511 626 628 627.0 6.86 25 12 1 2 2 10 16 3 18 1 0 1 8 300 512 636 638 637.0 6.94 25 12 2 3 5 11 13 3 16 3 0 1 7 358 513 646 648 647.0 7.02 26 8 0 2 3 10 18 3 20 1 0 1 8 318 514 656 658 657.0 7.10 27 11 1 4 3 16 15 3 13 0 0 1 8 341 515 666 668 667.0 7.18 24 9 1 2 5 10 16 3 19 2 0 1 9 317 516 676.5 678.5 677.5 7.26 25 11 3 3 3 9 16 3 16 1 0 2 9 316 517 686 688 687.0 7.34 27 11 1 2 3 15 15 3 13 2 0 2 7 343