Kure Atoll, Hawaiian Archipelago Radiocarbon Data from 1939-2002 AD Andrews, A.H.; Siciliano, D.; Potts, D.C.; DeMartini, E.E.; Covarrubias, S. Andrews, A.H. Siciliano, D. Potts, D.C. DeMartini, E.E. Covarrubias, S. earth science/paleoclimate/corals and sclerosponges (sample identification,null,null,null,null,corals and sclerosponges,null,null,C,null) earth science/paleoclimate/corals and sclerosponges (Delta 14C,Porites evermanni,one standard deviation,per mil NBS oxalic acid,null,corals and sclerosponges,corrected,accelerator mass spectrometry,N,t-corrected) earth science/paleoclimate/corals and sclerosponges (age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges (Delta 14C,Porites evermanni,null,per mil NBS oxalic acid,null,corals and sclerosponges,corrected,accelerator mass spectrometry,N,t-corrected) earth science/paleoclimate/corals and sclerosponges (Delta 14C,Porites evermanni,null,fraction of modern activity,null,corals and sclerosponges,raw,accelerator mass spectrometry,N,null) earth science/paleoclimate/corals and sclerosponges earth science/paleoclimate/corals and sclerosponges (Kure Atoll>LATITUDE 28.3928>LONGITUDE -178.3258) Corals of the Hawaiian Archipelago are well situated in the North Pacific Gyre (NPG) to record how bomb-produced radiocarbon (14C) has been sequestered and transported by the sea. While this signal can be traced accurately through time in reef-building corals and used to infer oceanographic processes and determine the ages of marine organisms, a comprehensive and validated record has been lacking for the Hawaiian Archipelago. In this study, a coral core from Kure Atoll in the Northwestern Hawaiian Islands was used to create a high-resolution bomb 14C record for the years 1939–2002, and was then used with other 14C measurements in fish otoliths and seawater to explore differences and similarities in the bomb 14C signal throughout the Hawaiian Archipelago. The Kure Atoll sample series produced a well-defined bomb 14C curve that, with some exceptions, was similar to other coral 14C records from the Hawaiian Archipelago. Subtle differences in the coral 14C records across the region may be explained by the large-scale ocean circulation patterns and decadal cycles of the NPG. The most rapid increase of 14C, in the 1950s and 1960s, showed similar timing across the Hawaiian Archipelago and provides a robust basis for use of bomb 14C dating to obtain high precision age determinations of marine organisms. Reference otoliths of juvenile fish demonstrated the use of the post-peak 14C decline period as a viable reference in the age validation of younger and more recently collected fishes, and effectively extended the utility of bomb 14C dating to the latest 30 years. STUDY NOTES: Carbon isotope (D14C) data for years 1939-2002 from a Porites evermanni coral core collected from the backreef of Kure Atoll at depths from 2-4 m. Provided Keywords: carbon-14, snapper, grouper, age validation, North Pacific Gyre, oceanography NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Andrews, A.H. Investigator : Siciliano, D. Investigator : Potts, D.C. Investigator : DeMartini, E.E. Investigator : Covarrubias, S. 2017-01-12 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/21192 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/andrews2016-rc/andrews2016-rc-kure.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/andrews2016-rc/andrews2016-rc-kure.txt English https://www.ncdc.noaa.gov/paleo/study/21192 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/andrews2016-rc/andrews2016-rc-kure.txt Andrews, A.H., D. Siciliano, D.C. Potts, E.E. DeMartini, and S. Covarrubias2016Bomb radiocarbon and the Hawaiian Archipelago: Coral, otoliths and seawaterRadiocarbon583531-54810.1017/RDC.2016.32 START YEAR: 1939 AD * END YEAR: 2002 AD -178.3258 28.3928 -178.3258 28.3928