# North Pacific Ocean and Bering Sea d13C and d18O Data from 1887 to 2004 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/38401 # 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-38401.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: 10.25921/55pn-8m03 # # Science_Keywords: #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/north_pacific/williams2011/williams2011-am_kr-80_iso.txt # Data_Download_Description: NOAA Template File; AM KR-80 d13C and d18O Data # #--------------------------------------- # Contribution_Date # Date: 2023-08-09 #--------------------------------------- # File_Last_Modified_Date # Date: 2023-09-15 #--------------------------------------- # Title # Study_Name: North Pacific Ocean and Bering Sea d13C and d18O Data from 1887 to 2004 CE #--------------------------------------- # Investigators # Investigators: Williams, Branwen (https://orcid.org/0000-0001-6378-9828); Halfar, Jochen; Steneck, Robert S.; Wortmann, U.G.; Hetzinger, Steffen; Adey, Walter; Lebednik, P.; Joachimski, M. #--------------------------------------- # Description_Notes_and_Keywords # Description: #--------------------------------------- # Publication # Authors: Williams, B., Halfar, J., Steneck, R. S., Wortmann, U. G., Hetzinger, S., Adey, W., Lebednik, P., and Joachimski, M. # Published_Date_or_Year: 2011 # Published_Title: Twentieth century d13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea # Journal_Name: Biogeosciences # Volume: 8 # Edition: # Issue: # Pages: 165-174 # Report_Number: # DOI: 10.5194/bg-8-165-2011 # Online_Resource: # Full_Citation: # Abstract: The oxygen isotopic composition and Mg/Ca ratios in the skeletons of long-lived coralline algae record ambient seawater temperature over time. Similarly, the carbon isotopic composition in the skeletons record d13C values of ambient seawater dissolved inorganic carbon. Here, we measured d13C in the coralline alga Clathromorphum nereostratum to test the feasibility of reconstructing the intrusion of anthropogenic CO2 into the northern North Pacific Ocean and Bering Sea. The d13C was measured in the high Mg-calcite skeleton of three C. nereostratum specimens from two islands 500 km apart in the Aleutian archipelago. In the records spanning 1887 to 2003, the average decadal rate of decline in d13C values increased from 0.03‰ yr-1 in the 1960s to 0.095‰ yr-1 in the 1990s, which was higher than expected due to solely the d13C-Suess effect. Deeper water in this region exhibits higher concentrations of CO2 and low d13C values. Transport of deeper water into surface water (i.e., upwelling) increases when the Aleutian Low is intensified. We hypothesized that the acceleration of the d13C decline may result from increased upwelling from the 1960s to 1990s, which in turn was driven by increased intensity of the Aleutian Low. Detrended d13C records also varied on 4–7 year and bidecadal timescales supporting an atmospheric teleconnection of tropical climate patterns to the northern North Pacific Ocean and Bering Sea manifested as changes in upwelling. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #--------------------------------------- # Site_Information # Site_Name: Amchitka Island KR-80 # Location: North Pacific Ocean # Northernmost_Latitude: 51.6945 # Southernmost_Latitude: 51.6945 # Easternmost_Longitude: -179.472167 # Westernmost_Longitude: -179.472167 # Elevation_m: #--------------------------------------- # Data_Collection # Collection_Name: AM_KR-80_iso # First_Year: 1937 # Last_Year: 1967 # Time_Unit: year Common Era # Core_Length_m: # Parameter_Keywords: oxygen isotopes, carbon isotopes # Notes: #--------------------------------------- # 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) # ## Year age,,,year Common Era,,Corals and Sclerosponges,,,N, ## d13C delta 13C,Clathromorphum nereostratum,,per mil PDB,,Corals and Sclerosponges,,isotope ratio mass spectrometry,N,Error: 0.16 ## d18O delta 18O,Clathromorphum nereostratum,,per mil PDB,,Corals and Sclerosponges,,isotope ratio mass spectrometry,N,Error: 0.08 #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: Year d13C d18O 1967 -2.52 -1.84 1966 -0.91 -1.72 1965 0.33 -1.73 1964 -0.10 -1.68 1963 -0.41 -1.66 1962 -0.55 -1.81 1961 -0.41 -1.81 1960 -0.14 -2.02 1959 0.66 -1.95 1958 0.43 -1.83 1957 -0.69 -1.81 1956 -0.09 -1.78 1955 0.32 -1.85 1954 0.08 -1.86 1953 -0.07 -1.86 1952 -1.10 -1.88 1951 0.39 -1.61 1950 -0.04 -1.68 1949 -1.33 -1.63 1948 0.24 -1.70 1947 -2.04 -1.76 1946 -1.34 -1.62 1945 -0.58 -1.68 1944 -0.17 -1.71 1943 -0.91 -1.74 1942 -0.84 -1.82 1941 -0.43 -1.73 1940 -0.86 -1.79 1939 -1.74 -1.84 1938 -0.62 -1.80 1937 0.18 -1.88