# Great Barrier Reef, Porites spp. bimonthly trace elements 1990-2013 CE #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. # If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with '#' followed by a space # Data lines have no '#' # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/34392 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-coral-34392.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Corals and Sclerosponges # # Dataset_DOI: # # Science_Keywords: #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/dolivo2018/dolivo2018-hav09_3.txt # Data_Download_Description: NOAA Template File; HAV09_3 Trace Metals Data # # Original_Source_URL: https://data.mendeley.com/datasets/ww8mvgzymf/2 # Original_Source_Description: Data supplement at Mendeley where a copy of the data was obtained. #--------------------------------------- # Contribution_Date # Date: 2024-02-09 #--------------------------------------- # File_Last_Modified_Date # Date: 2024-02-09 #--------------------------------------- # Title # Study_Name: Great Barrier Reef, Porites spp. bimonthly trace elements 1990-2013 CE #--------------------------------------- # Investigators # Investigators: D'Olivo, Juan Pablo (https://orcid.org/0000-0002-3291-7484); Sinclair, Daniel J.; Rankenburg, Kai (https://orcid.org/0000-0003-3708-9304); McCulloch, Malcolm Thomas (https://orcid.org/0000-0003-1538-1558) #--------------------------------------- # Description_Notes_and_Keywords # Description: Contributed as part of the Great Barrier Reef Coral Skeletal Records Database (GBRCD). # Provided Keywords: Great Barrier Reef, Trace elements, Coral, Multiproxy calibration #--------------------------------------- # Publication # Authors: D'Olivo, J.P., Sinclair, D.J., Rankenburg, K. and McCulloch, M.T. # Published_Date_or_Year: 2018 # Published_Title: A universal multi-trace element calibration for reconstructing sea surface temperatures from long-lived Porites corals: Removing 'vital-effects' # Journal_Name: Geochimica et Cosmochimica Acta # Volume: 239 # Edition: # Issue: # Pages: 109-135 # Report_Number: # DOI: 10.1016/j.gca.2018.07.035 # Online_Resource: # Full_Citation: # Abstract: Trace element abundances in corals can potentially provide high-resolution seasonally resolved constraints on past sea-surface temperatures, much needed to improve our understanding of climate variability on interannual to centennial time scales. A major limitation to the general application of trace element (TE) paleo-thermometers to coral fossil records is the presence of ‘vital effects’, which result in the need for colony-specific temperature calibrations. Here we demonstrate that reliable proxy temperatures from massive Porites corals can be achieved by using a universal multi-trace element calibration scheme (UMTECS). Using modern massive Porites corals living in well characterized sea surface temperature (SST) environments we first confirm that Sr/Ca and Li/Mg ratios are the most robust SST proxies compared to other trace element ratios (Mg/Ca, U/Ca, B/Ca and Li/Ca). Importantly we find that the slopes (and intercepts) of the Sr/Ca vs SST relationship are linearly correlated with the slopes from the Li/Mg vs SST relationship and provide a simple mathematical explanation for this phenomenon based on the tendency for all coral data to cluster around a single common ‘centroid’. Based on this tight empirical correlation between Sr/Ca and Li/Mg thermometers we show that a ‘universal’ calibration strategy can be applied that largely circumvents ‘vital effects’. Using this approach, we show that accurate more reliable reconstructions of paleo-temperatures can be undertaken using fossil Porites corals without the need for a priori colony-specific temperature calibrations. The general viability of this approach is demonstrated using an independent set of coral data where we show that UMTECS outperforms other ‘aggregating’ calibration techniques. For P. lutea and P. lobata the scheme produces temperature estimates with root-mean-square errors (RMSE) that are only 0.3 °C larger than those using colony-specific calibrations. This compares with ‘averaged TE-SST calibrations’ which produce RMSEs between 0.4 and 0.6 °C larger than colony-specific calibrations for P. lutea and P. lobata. However, we note that the success of our approach diminishes where data for individual corals deviate markedly from the common centroid, which appear to be related to species differences. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Australian Research Council # Grant: Laureate Fellowship FL120100049 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Consejo Nacional de Ciencia y Tecnología (CONACyT) # Grant: 238264 #--------------------------------------- # Site_Information # Site_Name: Havannah Island # Location: Australia # Northernmost_Latitude: -18.836 # Southernmost_Latitude: -18.836 # Easternmost_Longitude: 146.5259 # Westernmost_Longitude: 146.5259 # Elevation_m: -3.6 #--------------------------------------- # Data_Collection # Collection_Name: HAV09_3 Trace Metals DOlivo2018 # First_Year: 1999 # Last_Year: 2008 # Time_Unit: year Common Era # Core_Length_m: # Parameter_Keywords: trace metals # Notes: Porites lutea #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## age_CE age,Porites lutea,,year Common Era,,corals and sclerosponges,,,N, ## Mg/Ca Magnesium/Calcium,Porites lutea,,millimole per mole,,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Bimonthly interpolation. Thermo Fisher Scientific X Series II quadrupole inductively coupled plasma mass spectrometer ## Sr/Ca Strontium/Calcium,Porites lutea,,millimole per mole,,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Bimonthly interpolation. Thermo Fisher Scientific X Series II quadrupole inductively coupled plasma mass spectrometer ## U/Ca Uranium/Calcium,Porites lutea,,micromole per mole,,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Bimonthly interpolation. Thermo Fisher Scientific X Series II quadrupole inductively coupled plasma mass spectrometer ## Li/Mg Lithium/Magnesium,Porites lutea,,millimole per mole,,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Bimonthly interpolation. Thermo Fisher Scientific X Series II quadrupole inductively coupled plasma mass spectrometer ## B/Ca Boron/Calcium,Porites lutea,,micromole per mole,,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Bimonthly interpolation. Thermo Fisher Scientific X Series II quadrupole inductively coupled plasma mass spectrometer ## Li/Ca Lithium/Calcium,Porites lutea,,micromole per mole,,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Bimonthly interpolation. Thermo Fisher Scientific X Series II quadrupole inductively coupled plasma mass spectrometer #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NA age_CE Mg/Ca Sr/Ca U/Ca Li/Mg B/Ca Li/Ca Dec-99 4.813811906 8.899516 1.065531 1.339133 467.151845 6.42573306 Feb-00 5.085515222 8.868195 1.027733 1.250591 451.345885 6.35785081 Apr-00 4.861850172 8.954058 1.084337 1.359161 471.886322 6.567652 Jun-00 4.341867921 9.132412 1.192325 1.603373 518.85301 6.93681273 Aug-00 4.230861777 9.126181 1.186218 1.636264 534.905322 6.90616629 Oct-00 4.581542759 8.986902 1.106255 1.439005 488.78721 6.57593788 Dec-00 4.818749718 8.907661 1.064584 1.337337 461.812817 6.43391785 Feb-01 5.043752226 8.859278 1.034203 1.257518 447.713283 6.34017783 Apr-01 5.002240671 8.901438 1.042806 1.306022 460.240413 6.52342891 Jun-01 4.571825234 9.05738 1.116564 1.505093 493.747988 6.8603539 Aug-01 4.332535533 9.103893 1.155824 1.591321 516.100319 6.89256937 Oct-01 4.573496219 8.990094 1.110561 1.425153 486.305311 6.49785612 Dec-01 5.019679991 8.883026 1.04522 1.238673 433.482314 6.2067715 Feb-02 5.272307991 8.834119 0.99691 1.181087 416.99912 6.22250795 Apr-02 5.076295808 8.917036 1.028022 1.296303 453.092506 6.56433884 Jun-02 4.574662294 9.073236 1.11974 1.502966 519.97439 6.84902622 Aug-02 4.268805599 9.124559 1.169081 1.601707 537.678054 6.81975868 Oct-02 4.625306951 8.985429 1.101056 1.421629 491.101578 6.55342476 Dec-02 5.029724159 8.859637 1.037151 1.26028 448.583418 6.33389809 Feb-03 5.281734562 8.809042 0.993242 1.204242 440.337074 6.35973162 Apr-03 4.980886478 8.904143 1.038392 1.340516 453.954275 6.65393443 Jun-03 4.462704447 9.063523 1.12259 1.56148 509.994953 6.95296934 Aug-03 4.298531451 9.096859 1.145408 1.612872 529.091636 6.92886135 Oct-03 4.587594313 8.980533 1.103975 1.434513 486.272091 6.56574454 Dec-03 4.968451344 8.867336 1.047505 1.259776 440.986155 6.25441884 Feb-04 5.127060701 8.82048 1.009424 1.21758 444.339083 6.24016478 Apr-04 4.881856234 8.924905 1.04783 1.342996 483.199985 6.53656717 Jun-04 4.462655822 9.047308 1.124442 1.536084 517.799968 6.83192211 Aug-04 4.188825946 9.111693 1.181947 1.630367 530.603923 6.82095201 Oct-04 4.451503157 9.006614 1.130478 1.469126 483.788973 6.5252906 Dec-04 4.785469494 8.879021 1.069465 1.297376 439.815322 6.20017189 Feb-05 5.077166993 8.816658 1.021226 1.217446 427.565377 6.17848065 Apr-05 5.014134089 8.897069 1.040553 1.288658 448.259453 6.44576569 Jun-05 4.52985322 9.061168 1.134568 1.508676 489.439636 6.80688285 Aug-05 4.208953182 9.133728 1.190723 1.630216 508.329459 6.85575655 Oct-05 4.533079492 8.998307 1.123136 1.439805 467.997747 6.48650901 Dec-05 4.927073882 8.858474 1.049197 1.256382 428.534948 6.18361344 Feb-06 5.166020416 8.826651 0.997662 1.195355 429.472473 6.16907162 Apr-06 4.841021503 8.937838 1.047635 1.348726 476.218225 6.48870135 Jun-06 4.320571755 9.105134 1.153841 1.590176 519.188946 6.84585408 Aug-06 4.085971358 9.136298 1.182239 1.673874 539.837255 6.83300279 Oct-06 4.29187831 9.0142 1.126118 1.539092 505.137156 6.58283416 Dec-06 4.64448876 8.884343 1.06262 1.359027 460.28118 6.29957875 Feb-07 4.973545764 8.837074 1.021377 1.263178 441.860856 6.27781565 Apr-07 4.845853176 8.919587 1.050323 1.363706 462.320655 6.59912058 Jun-07 4.514413072 9.043683 1.111429 1.530164 499.492573 6.88608348 Aug-07 4.126201933 9.134861 1.167508 1.66932 533.441405 6.86260295 Oct-07 4.451664736 8.97888 1.091928 1.481429 503.422639 6.56401362 Dec-07 4.802196641 8.850716 1.023677 1.303335 460.594519 6.24590832 Feb-08 4.944276666 8.831643 1.006357 1.2562 444.68309 6.20901022 Apr-08 4.797815217 8.950997 1.042005 1.389913 470.277337 6.65537859 Jun-08 4.365580745 9.102917 1.141793 1.617516 503.509054 7.04051698 Aug-08 4.190399534 9.158148 1.166036 1.692654 534.430781 7.08063311