# Kona - Radiocarbon Data #---------------------------------------------------- # 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/1905 # 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-1905.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: 10.25921/047y-vc94 # # Science_Keywords: #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/east_pacific/druffel2001-long_noaa.txt # Data_Download_Description: NOAA Template File; Annual Radiocarbon Data # #-------------------- # Contribution_Date # Date: 2004-11-01 #-------------------- # File_Last_Modified_Date # Date: 2025-07-11 #-------------------- # Title # Study_Name: Kona - Radiocarbon Data #-------------------- # Investigators # Investigators: Druffel, E.R.M.(https://orcid.org/0000-0002-7139-1075); Griffin, S.M.; Guilderson, T.P.(https://orcid.org/0000-0001-9371-7059); Kashgarian, M.(https://orcid.org/0000-0001-7824-8418); Southon, J.R.(https://orcid.org/0000-0001-6168-6235); Schrag, D.P.(https://orcid.org/0000-0003-2216-827X) #-------------------- # Description_Notes_and_Keywords # Description: Coral radiocarbon data. Core location 2.5 km south of Keauhou Bay, Kona, Hawaii (19°31'N, 155°58'W) 50m. offshore, water depth 8m. Porites lobata #-------------------- # Publication # Authors: Druffel, E.R.M.; Griffin, S.; Guilderson, T.P.; Kashgarian, M.; Southon, J.; Schrag, D.P # Journal_Name: Radiocarbon # Published_Title: Changes of subtropical north pacific radiocarbon and correlation with climate variability # Published_Date_or_Year: 2001 # Volume: 43 # Issue: 1 # Pages: 15-25 # Report_Number: # DOI: 10.1017/S0033822200031593 # Full_Citation: # Abstract: We show that high-precision radiocarbon (Δ14C) measurements from annual bands of a Hawaiian surface coral decreased by 7‰ from AD 1893 to 1952. This decrease is coincident with the Suess Effect, which is mostly due to the dilution of natural levels of 14C by 14C-free fossil fuel CO2. This decrease is equal to that expected in surface waters of the subtropical gyres, and indicates that the surface waters of the North Pacific were in steady state with respect to long term mixing of CO2 during the past century. Correlation between Δ14C and North Pacific gyre sea surface temperatures indicates that vertical mixing local to Hawaii and the North Pacific gyre as a whole is the likely physical mechanism to result in variable Δ14C. Prior to 1920, this correlation starts to break down; this may be related to the non-correlation between biennial Δ14C values in corals from the southwest Pacific and El Niño events observed during this period as well. #-------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: OCE-9711326, OCE-9819257 #-------------------- # Funding_Agency # Funding_Agency_Name: US Department of Energy # Grant: #-------------------- # Site_Information # Site_Name: Kona # Location: Hawaii # Northernmost_Latitude: 19.52 # Southernmost_Latitude: 19.52 # Easternmost_Longitude: -155.97 # Westernmost_Longitude: -155.97 # Elevation_m: -8 #-------------------- # Data_Collection # Collection_Name: 01hawi01a # First_Year: 1893 # Last_Year: 1966 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: del14C # 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) # ## id sample identification,,,,,corals and sclerosponges,,,C, ## age age,,,year Common Era,,corals and sclerosponges,,,N, ## d14c Delta 14C,Porites lobata,,per mil NBS oxalic acid,,corals and sclerosponges,corrected,accelerator mass spectrometry,N,corrected for a delta 13C of -25 per mil PDB and for decay since the time of formation (Stuiver and Polach 1977) ## d14c_err Delta 14C,Porites lobata,one standard deviation,per mil NBS oxalic acid,,corals and sclerosponges,corrected,accelerator mass spectrometry,N,corrected for a delta 13C of -25 per mil PDB and for decay since the time of formation (Stuiver and Polach 1977) #-------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: id age d14c d14c_err 3987 1893.33 -48.5 2.6 3982 1894.29 -49.4 2.5 3985A 1895.29 -46.4 2.9 3985B 1895.29 -47.1 2.7 3279 1896.21 -46.0 2.8 3284 1897.25 -47.7 3.2 3275 1898.26 -41.9 2.7 3304 1899.09 -43.2 2.6 3282 1900.07 -41.4 2.8 3276 1901.21 -49.6 2.8 3285 1902.06 -47.5 3.1 3283 1902.73 -45.8 2.8 3280 1903.57 -40.1 2.8 3274 1904.33 -42.9 3.3 3281 1904.33 -44.0 2.4 3277 1905.21 -44.5 2.8 3984 1905.21 -43.3 2.5 3273 1906.18 -42.1 2.7 4429 1907.13 -49.2 2.3 4432 1908.32 -46.4 2.1 3308 1909.28 -49.4 2.8 3299 1910.23 -42.5 2.7 3297A 1911.20 -42.9 3.1 3297B 1911.20 -41.0 2.8 3306 1912.71 -44.9 2.7 3298 1913.18 -55.0 2.7 3988 1913.18 -55.8 2.5 3301 1914.15 -49.3 2.7 3197 1915.10 -40.4 2.3 3190 1916.34 -44.5 2.7 3196 1917.46 -42.5 2.6 3270 1918.24 -50.3 2.7 3195 1919.10 -40.3 2.2 3983 1919.10 -43.3 3.0 3278 1920.09 -46.1 2.6 3189 1921.19 -46.6 2.7 3194 1922.19 -48.1 2.6 3186 1922.98 -48.6 2.7 4431 1923.86 -52.2 2.3 3198 1925.26 -45.3 2.6 3193 1926.34 -45.4 2.7 3265 1927.17 -49.4 2.8 3266 1928.17 -51.6 2.7 3188 1929.30 -50.7 2.9 3179 1930.24 -51.0 2.6 3271 1931.23 -54.0 2.7 3182 1932.14 -46.5 2.8 3173 1933.06 -50.8 2.6 3180 1934.22 -49.3 2.1 3181 1934.22 -47.9 2.6 3183 1935.19 -49.1 2.8 3178 1936.17 -50.6 2.6 3994 1936.17 -49.2 2.2 4430 1937.50 -54.1 2.3 3993 1937.20 -49.5 2.2 3992 1938.20 -45.0 2.6 3991 1939.70 -51.6 2.5 3287 1939.47 -51.4 2.7 3175 1940.12 -52.7 3.7 3184A 1940.12 -50.0 2.7 3184B 1940.12 -53.4 2.6 3174 1941.10 -54.6 2.8 3172 1942.17 -50.4 2.6 3191 1943.15 -48.4 2.3 3986 1943.20 -49.3 2.8 3201 1944.18 -49.1 2.6 3267 1945.24 -51.0 2.7 3200 1946.22 -47.9 2.5 3187 1947.07 -48.9 2.7 3272 1948.05 -48.4 2.7 3199 1949.10 -52.3 2.6 3192 1950.10 -52.1 2.9 3185 1951.10 -50.8 2.4 3309A 1951.90 -53.5 2.8 3309B 1951.90 -53.3 2.7 3168 1958.01 -25.6 2.7 3167 1961.90 11.0 2.8 3170 1964.92 100.1 3.0 3169 1966.04 114.4 3.1