# Heron Reef Acropora inter-branch skeleton Sr/Ca Data from 2009-2014 #---------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #---------------------------------------------------- # 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 # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/19440 # 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-19440.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: 10.25921/x6m4-5c80 # # Science_Keywords: #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/west_pacific/sadler2015/sadler2015-heronreef-noaa.txt # Data_Download_Description: NOAA Template File; Heron Reef Sr/Ca Data # #-------------------- # Contribution_Date # Date: 2015-11-10 #-------------------- # File_Last_Modified_Date # Date: 2025-08-20 #-------------------- # Title # Study_Name: Heron Reef Acropora inter-branch skeleton Sr/Ca Data from 2009-2014 #-------------------- # Investigators # Investigators: Sadler, J.(https://orcid.org/0000-0001-7264-8656); Webb, G.E.(https://orcid.org/0000-0002-9206-978X); Nothdurft, L.D. #-------------------- # Description_Notes_and_Keywords # Description: Modern Sr/Ca data from the inter-branch skeleton of Acropora humilis group corals. Data are anchor points used in the generation of a transfer equation between coral Sr/Ca and water temperature. No interpolation has been applied to these values, only a four point running mean from the raw ICP-MS data. ICP-MS Sr/Ca precision: 0.4. Heron lagoon instrumental water temperature reported instrumental accuracy: 0.02 deg C. Heron slope instrumental water temperature reported instrumental accuracy: 0.005 deg C. # Provided Keywords: Acropora, inter-branch skeleton, Sr/Ca #-------------------- # Publication # Authors: Sadler, J., A.D. Nguyen, N. Leonard, G.E. Webb, and L. Nothdurft # Journal_Name: Paleoceanography # Published_Title: Acropora interbranch skeleton Sr/Ca ratios: Evaluation of a potential new high-resolution paleothermometer # Published_Date_or_Year: 2016 # Volume: 31 # Issue: 4 # Pages: 505-517 # Report_Number: # DOI: 10.1002/2015PA002898 # Full_Citation: # Abstract: The majority of coral geochemistry-based paleoclimate reconstructions in the Indo-Pacific are conducted on selectively cored colonies of massive Porites. This restriction to a single genus may make it difficult to amass the required paleoclimate data for studies that require deep reef coring techniques. Acropora, however, is a highly abundant coral genus in both modern and fossil reef systems and displays potential as a novel climate archive. Here we present a calibration study for Sr/Ca ratios recovered from interbranch skeleton in corymbose Acropora colonies from Heron Reef, southern Great Barrier Reef. Significant intercolony differences in absolute Sr/Ca ratios were normalized by producing anomaly plots of both coral geochemistry and instrumental water temperature records. Weighted linear regression of these anomalies from the lagoon and fore-reef slope provide a sensitivity of −0.05 mmol/mol °C−1, with a correlation coefficient (r2 = 0.65) comparable to those of genera currently used in paleoclimate reconstructions. Reconstructions of lagoon and reef slope mean seasonality in water temperature accurately identify the greater seasonal amplitude observed in the lagoon of Heron Reef. A longer calibration period is, however, required for reliable reconstructions of annual mean water temperatures. #-------------------- # Funding_Agency # Funding_Agency_Name: Australian Research Council (ARC) # Grant: Discovery Grant, DP120101793 #-------------------- # Funding_Agency # Funding_Agency_Name: Australian Wildlife Society # Grant: University Research Grant #-------------------- # Site_Information # Site_Name: Heron Island Reef # Location: Australia # Northernmost_Latitude: -23.45 # Southernmost_Latitude: -23.45 # Easternmost_Longitude: 151.92 # Westernmost_Longitude: 151.92 # Elevation_m: #-------------------- # Data_Collection # Collection_Name: Heron Acropora SrCa Sadler15 # First_Year: 2009 # Last_Year: 2014 # Time_Unit: CE # Core_Length_m: 2 # Parameter_Keywords: chemistry, trace metals # Notes: Six separate colony cores of cormbose Acropora colonies; water depth 11 m #-------------------- # Chronology_Information # Chronology: # Chronology was developed by matching peaks and troughs in Acropora Sr/Ca with the local, monthly averaged instrumental SST record #-------------------- # 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) # ## SampleID sample identification,,,,,corals and sclerosponges,,,C, ## age_CE age,,,year Common Era,,corals and sclerosponges;instrumental,,,N, ## Sr/Ca-a.hum-4pt strontium/calcium,Acropora humilis,,millimole per mole,,corals and sclerosponges,smoothed,inductively-coupled plasma mass spectrometry,N,smoothed by 4 point running mean ## Sr/Ca-a.sam-4pt strontium/calcium,Acropora samoensis,,millimole per mole,,corals and sclerosponges,smoothed,inductively-coupled plasma mass spectrometry,N,smoothed by 4 point running mean ## lagoon-in-T sea surface temperature,,,degree Celsius,,instrumental,,,N,lagoon temperature ## slope-in-T sea surface temperature,,,degree Celsius,,instrumental,,,N,slope temperature #-------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NA SampleID age_CE Sr/Ca-a.hum-4pt Sr/Ca-a.sam-4pt lagoon-in-T slope-in-T AR_HL_3 2014.08 9.6032 NA 26.47 NA AR_HL_3 2013.50 9.7581 NA 20.95 NA AR_HL_3 2013.08 9.5672 NA 27.04 NA AR_HL_3 2012.58 9.8802 NA 20.31 NA AR_HL_3 2012.17 9.5899 NA 27.32 NA AR_HL_3 2011.67 9.8295 NA 20.17 NA AR_HL_3 2011.17 9.5936 NA 27.29 NA AR_HL_3 2010.67 9.7034 NA 21.51 NA AR_HL_3 2010.17 9.4720 NA 27.36 NA AR_HL_3 2009.58 9.7793 NA 20.60 NA AR_HL_4 2013.50 9.7514 NA 20.95 NA AR_HL_4 2013.08 9.3228 NA 27.04 NA AR_HL_4 2012.58 9.8082 NA 20.31 NA AR_HL_4 2012.17 9.4464 NA 27.32 NA AR_HL_4 2011.67 9.8144 NA 20.17 NA AR_HL_4 2011.17 9.3424 NA 27.29 NA AR_HL_4 2010.67 9.7788 NA 21.51 NA AR_HL_4 2010.17 9.3711 NA 27.36 NA AR_HL_4 2009.58 9.7964 NA 20.60 NA AR_HL_4 2009.17 9.3682 NA 27.16 NA AR_HL_6 2013.50 9.9056 NA 20.95 NA AR_HL_6 2013.08 9.4576 NA 27.04 NA AR_HL_6 2012.58 10.0224 NA 20.31 NA AR_HL_6 2012.17 9.5902 NA 27.32 NA AR_HL_6 2011.67 10.0705 NA 20.17 NA AR_HL_6 2011.17 9.7350 NA 27.29 NA AR_HL_6 2010.67 10.0071 NA 21.51 NA AR_HL_6 2010.17 9.4990 NA 27.36 NA AR_HL_6 2009.58 9.9943 NA 20.60 NA AR_HL_6 2009.17 9.4838 NA 27.16 NA AR_HS_3 2013.17 NA 9.4363 NA 26.953 AR_HS_3 2012.58 NA 9.6749 NA 20.878 AR_HS_3 2012.17 NA 9.4391 NA 27.258 AR_HS_3 2011.67 NA 9.7001 NA 20.734 AR_HS_3 2011.17 NA 9.4624 NA 27.359 AR_HS_3 2010.58 NA 9.6995 NA 22.109 AR_HS_3 2010.08 NA 9.3521 NA 27.371 AR_HS_5 2012.17 9.6541 NA NA 27.258 AR_HS_5 2011.67 9.8696 NA NA 20.734 AR_HS_5 2011.17 9.6379 NA NA 27.359 AR_HS_5 2010.58 9.8348 NA NA 22.109 AR_HS_5 2010.08 9.6493 NA NA 27.371 AR_HS_6 2014.08 9.4681 NA NA 26.601 AR_HS_6 2013.58 9.7542 NA NA 21.425 AR_HS_6 2013.17 9.4266 NA NA 26.953 AR_HS_6 2012.58 9.8157 NA NA 20.878 AR_HS_6 2012.17 9.6572 NA NA 27.258 AR_HS_6 2011.67 9.9071 NA NA 20.734 AR_HS_6 2011.17 9.5774 NA NA 27.359