# Solomon Island Coral-Bound Nitrogen, Oxygen and Carbon Isotope Data from 1919 to 2012 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/37698 # 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-37698.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: centennial resolution, ENSO, Pacific Decadal Oscillation, Atmospheric and Oceanic Circulation Patterns Reconstruction #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/south_pacific/chen2023/chen-12nak-k.txt # Data_Download_Description: NOAA Template File; Nitrogen, Oxygen and Carbon Isotope Data # #--------------------------------------- # Contribution_Date # Date: 2023-03-08 #--------------------------------------- # File_Last_Modified_Date # Date: 2023-06-26 #--------------------------------------- # Title # Study_Name: Solomon Island Coral-Bound Nitrogen, Oxygen and Carbon Isotope Data from 1919 to 2012 CE #--------------------------------------- # Investigators # Investigators: Chen, Wen-Hui (0000-0002-9350-3277); Ren, Haojia (0000-0002-1769-4243); Chiang, John (0000-0001-7723-9544); Wang, You-Lin (0000-0003-3526-8325); Cai-Li, Ren-Yi (0009-0000-5556-8451); Chen, Yi-Chi(0000-0002-0833-2689); Shen, Chuan-Chou (0000-0003-2833-2771); Taylor, Frederick; DeCarlo, Thomas (0000-0003-3269-1320); Wu, Chau-Ron (0000-0002-2567-4664); Mii, Horng-Sheng (0000-0002-0702-3307); Wang, Xingchen(0000-0001-5316-789X) #--------------------------------------- # Description_Notes_and_Keywords # Description: #--------------------------------------- # Publication # Authors: Wen-Hui Chen, Haojia Ren, John C. H. Chiang, You-Lin Wang, Ren-Yi Cai-Li, Yi-Chi Chen, Chuan-Chou Shen, Frederick W. Taylor, Thomas M. DeCarlo, Chau-Ron Wu, Horng-Sheng Mii, Xingchen Tony Wang # Published_Date_or_Year: 2023 # Published_Title: Increased tropical South Pacific western boundary current transport over the past century # Journal_Name: Nature Geoscience # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: 10.1038/s41561-023-01212-4 # Online_Resource: # Full_Citation: # Abstract: The wind-driven meridional overturning circulation between the tropical and subtropical oceans is important for regulating decadal-scale temperature fluctuations in the Pacific Ocean and globally. An acceleration of the overturning circulation can act to reduce global surface temperature as ocean stores more heat. The equatorward low-latitude western boundary current represents a key component of the meridional circulation cell in the Pacific and a major source of water mass for the Equatorial Undercurrent, yet long-term observations of its transport are scarce. Here we demonstrate that the 15N/14N ratio recorded by Porites spp. corals in the western tropical South Pacific is sensitive to the exchanges of water masses driven by the western boundary transport. Using a 94-year coral record from the Solomon Sea, we report that the 15N/14N ratio declined as the global surface temperature rose. The record suggests that the South Pacific western boundary current has strengthened in the past century, and it may have contributed to the reported strengthening of the Equatorial Undercurrent. In addition, the 15N/14N record shows strong decadal variability, indicative of weaker equatorial Pacific upwelling and stronger western boundary transport when the eastern equatorial Pacific is in the warm stage of the Pacific Decadal Oscillation. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Ministry of Science and Technology (MOST), Taiwan # Grant: Columbus Grant 111-2636-M-002-020, 111-2116-M-032-MY3, 110-2811-M-001-554, 110-2611-M-003-001, 110-2123-M-002-009, 110-2116-M-003-005 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: EAR-1119211, OCE-2148926 #--------------------------------------- # Site_Information # Site_Name: 12NAK # Location: Solomon Islands # Northernmost_Latitude: -7.87 # Southernmost_Latitude: -7.87 # Easternmost_Longitude: 156.5 # Westernmost_Longitude: 156.5 # Elevation_m: -1 #--------------------------------------- # Data_Collection # Collection_Name: 12NAK-K # First_Year: 1919 # Last_Year: 2012 # Time_Unit: year Common Era # Core_Length_m: 2.75 # Parameter_Keywords: carbon isotopes, oxygen isotopes, # Notes: Porites coral skeleton-bound nitrogen isotopes #--------------------------------------- # 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 age,,,year Common Era,,corals and sclerosponges,,,N, ## d15N delta 15N,Porites sp.,,per mil Air,,corals and sclerosponges,,isotope ratio mass spectrometry,N, ## d15N_err delta 15N,Porites sp.,one standard deviation,per mil Air,,corals and sclerosponges,,isotope ratio mass spectrometry,N, ## d13C delta 13C,Porites sp.,,per mil PDB,,corals and sclerosponges,,isotope ratio mass spectrometry,N, ## d13C_err delta 13C,Porites sp.,one standard deviation,per mil PDB,,corals and sclerosponges,,isotope ratio mass spectrometry,N, ## d18O delta 18O,Porites sp.,,per mil PDB,,corals and sclerosponges,,isotope ratio mass spectrometry,N, ## d18O_err delta 18O,Porites sp.,one standard deviation,per mil PDB,,corals and sclerosponges,,isotope ratio mass spectrometry,N, #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: -999 Age d15N d15N_err d13C d13C_err d18O d18O_err 1919.27 9.918074 -999 0.333 -999 -4.913 -999 1919.43 10.04535 -999 -0.556 -999 -4.642 -999 1919.58 10.1676 -999 -0.497 -999 -4.655 -999 1919.72 10.89639 -999 -0.278 -999 -4.731 -999 1919.87 10.81288 -999 -0.479 -999 -4.923 -999 1920.01 11.00546 -999 -999 -999 -999 -999 1920.15 10.56397 -999 -0.386 -999 -5.101 -999 1920.26 10.46618 -999 -0.24 -999 -5.036 -999 1920.37 10.19373 -999 -0.4 -999 -4.976 -999 1920.48 10.28393 -999 -0.219 -999 -4.79 -999 1920.59 10.31071 -999 -0.061 -999 -4.607 -999 1920.7 10.45281 -999 -0.141 -999 -4.588 -999 1920.82 10.39047 -999 0 -999 -4.656 -999 1921.08 10.37472 -999 -0.148 -999 -4.815 -999 1921.41 9.96004 -999 -0.302 -999 -4.789 -999 1921.67 10.11958 -999 0.174 -999 -4.599 -999 1921.84 10.5525 -999 -0.425 -999 -4.585 -999 1922 10.40235 -999 -0.234 -999 -4.536 -999 1922.16 10.3498 -999 0.141 -999 -4.61 -999 1922.31 9.47764 -999 0.316 -999 -4.547 -999 1922.46 9.621599 -999 -0.457 -999 -4.628 -999 1922.61 9.36466 -999 -0.27 -999 -4.498 -999 1922.78 9.685971 -999 -0.348 -999 -4.854 -999 1922.99 9.084348 -999 -0.426 -999 -4.927 -999 1923.22 8.714333 -999 -0.412 -999 -4.861 -999 1923.4 9.179396 0.346198 -0.4765 0.1265 -4.9395 0.955 1923.55 9.150459 -999 -0.114 -999 -4.846 -999 1923.69 8.833327 0.192334 -0.5335 0.1425 -4.7055 0.625 1923.84 9.382307 0.587779 -0.2715 0.415 -4.737 0.32 1924 9.397873 -999 -0.072 -999 -4.626 -999 1924.2 8.571351 0.594499 -0.02 0.26 -4.683 0.29 1924.4 8.851356 0.785534 -0.432 0.143 -4.914 0.641 1924.59 9.147666 0.213993 -0.484 0.632 -4.715 0.137 1924.79 9.167979 -999 -0.58 -999 -4.67 -999 1924.99 9.328422 -999 0.3 -999 -4.649 -999 1925.25 8.510654 -999 -0.308 -999 -4.736 -999 1925.52 9.336178 -999 -0.438 -999 -4.417 -999 1925.78 9.2807 -999 -0.388 -999 -4.59 -999 1926.15 8.584774 -999 -0.731 -999 -4.713 -999 1926.54 8.314857 -999 0.21 -999 -4.434 -999 1926.82 8.436844 -999 -0.266 -999 -4.449 -999 1927.14 8.472764 0.259972 -0.225 0.561 -4.4785 0.4517 1927.29 8.273208 0.517339 -0.5475 0.1365 -4.654 0.16 1927.44 7.997095 0.463579 -0.3795 0.435 -4.7005 0.8517 1927.49 8.102008 -999 -0.589 -999 -4.581 -999 1927.58 8.040844 0.687275 -0.568 0.87 -4.717 0.311 1927.73 8.239616 0.235536 -0.4235 0.125 -4.5645 0.75 1927.88 7.912248 0.172657 -0.131 0.51 -4.709 0.143 1928.16 7.706542 0.233273 -0.078 0.119 -4.5065 0.1195 1928.2 7.435781 -999 -0.109 -999 -4.483 -999 1928.37 7.531679 -999 -0.087 -999 -4.496 -999 1928.52 7.396186 0.295316 0.388 0.256 -4.339 0.4 1928.71 7.308213 -999 0.476 -999 -4.204 -999 1928.83 7.586212 -999 -0.256 -999 -4.501 -999 1929.01 7.644379 -999 -0.302 -999 -4.696 -999 1929.2 7.58261 -999 -0.192 -999 -4.62 -999 1929.39 7.904395 -999 -0.557 -999 -4.519 -999 1929.57 7.644242 -999 -0.55 -999 -4.639 -999 1929.83 7.70181 -999 -0.631 -999 -4.654 -999 1930.22 -999 -999 -0.536 -999 -4.749 -999 1930.7 7.321027 0.896441 0.2795 0.5425 -4.21 0.365 1931.28 7.288805 0.481958 0.084 0.784 -4.224 0.23 1931.42 7.749009 0.226635 -0.2165 0.5415 -4.516 1 1931.55 7.859758 0.15425 -0.2625 0.3325 -4.4925 0.225 1931.75 7.684667 0.746463 -0.73 0.85 -4.391 -999 1931.95 7.686944 0.468735 -0.289 0.437 -4.571 0.12 1932.15 7.871744 0.427124 -0.1475 0.25 -4.288 0.681 1932.35 7.769994 0.644249 0.1945 0.3445 -4.2645 0.1685 1932.57 8.146495 0.385948 0.12 0.17 -4.2545 0.1175 1932.85 8.663458 -999 0.061 -999 -4.338 -999 1933.13 8.426947 -999 -999 -999 -999 -999 1933.41 8.343886 -999 0.429 -999 -4.346 -999 1933.62 8.212486 -999 0.068 -999 -4.319 -999 1933.84 8.272881 -999 -0.184 -999 -4.243 -999 1933.95 8.808988 -999 -0.116 -999 -4.806 -999 1934.06 8.784045 0.672687 -0.9655 0.315 -4.8345 0.865 1934.18 9.225362 -999 -0.77 -999 -4.737 -999 1934.3 9.551973 -999 -0.862 -999 -4.7 -999 1934.42 9.057424 0.317233 -0.663 0.348 -4.6265 0.1785 1934.58 9.320594 -999 -0.066 -999 -4.452 -999 1934.78 8.937897 0.255634 -0.154 0.187 -4.553 0.222 1934.97 9.283833 -999 -0.339 -999 -4.764 -999 1935.17 8.980576 -999 -0.603 -999 -4.662 -999 1935.37 8.820396 0.226722 -0.301 0.61 -4.532 0.12 1935.51 8.980168 -999 -0.208 -999 -4.399 -999 1935.63 9.424286 -999 -0.19 -999 -4.194 -999 1935.74 9.233613 -999 -0.408 -999 -4.446 -999 1935.87 9.46853 0.179242 -0.873 0.72 -4.629 0.254 1936.05 9.8381 -999 -0.053 -999 -4.707 -999 1936.24 9.492243 -999 -0.494 -999 -4.847 -999 1936.42 9.427757 -999 -0.379 -999 -4.734 -999 1936.55 9.411232 -999 -0.789 -999 -4.714 -999 1936.64 9.453516 -999 -0.708 -999 -4.594 -999 1936.73 9.250633 -999 -0.305 -999 -4.425 -999 1936.83 9.505012 -999 -0.114 -999 -4.63 -999 1936.94 8.819464 -999 -0.046 -999 -4.696 -999 1937.06 8.682829 -999 -0.298 -999 -4.662 -999 1937.18 9.003527 -999 -0.888 -999 -4.722 -999 1937.3 9.327701 -999 -0.942 -999 -4.601 -999 1937.43 9.483205 -999 -0.987 -999 -4.711 -999 1937.55 8.756343 -999 -0.019 -999 -4.643 -999 1937.81 8.823173 -999 -0.547 -999 -4.412 -999 1938.14 -999 -999 -0.213 -999 -4.001 -999 1938.47 -999 -999 -0.121 -999 -4.622 -999 1938.8 8.190449 -999 -0.918 -999 -4.531 -999 1939.13 8.744871 -999 -0.605 -999 -4.395 -999 1939.46 8.922923 -999 -0.73 -999 -4.512 -999 1939.79 8.755739 -999 -0.337 -999 -4.887 -999 1940.13 8.614915 -999 -0.559 -999 -4.657 -999 1940.46 9.198819 -999 -0.708 -999 -4.631 -999 1940.76 8.602354 -999 1.489 -999 -4.057 -999 1941.08 -999 -999 -0.003 -999 -4.172 -999 1941.41 8.220753 -999 0.783 -999 -3.836 -999 1941.52 8.114484 0.383168 -0.866 0.17 -4.482 0.185 1941.66 8.038105 0.112758 -0.8085 0.2295 -4.4845 0.2125 1941.8 8.227182 0.289349 -0.6775 0.475 -4.685 0.921 1941.95 7.923653 0.47219 -0.531 0.365 -4.6795 0.3145 1942.1 8.263286 0.422479 -0.444 0.18 -4.5325 0.1745 1942.25 8.311363 0.339662 -1.124 0.51 -4.6505 0.185 1942.39 8.120478 0.549437 -0.248 0.45 -4.367 0.335 1942.54 8.621982 0.2129 -0.79 0.61 -4.5985 0.2375 1942.69 8.733221 0.335616 -0.622 0.633 -4.5765 0.3645 1942.84 8.530139 0.471488 -0.753 0.142 -4.742 0.166 1943.04 8.570611 0.465573 -0.544 -999 -4.456 -999 1943.24 8.703988 0.989547 -0.4705 0.95 -4.3595 0.285 1943.43 8.915622 0.145826 -0.499 0.1 -4.5855 0.1455 1943.63 8.415287 0.598848 -0.497 0.145 -4.6515 0.9954 1943.83 8.996814 -999 -1.02 -999 -4.96 -999 1944.1 9.093044 -999 -0.288 -999 -5.042 -999 1944.37 8.872133 -999 -0.41 -999 -4.993 -999 1944.64 8.983957 -999 -1.274 -999 -4.797 -999 1944.91 9.372347 -999 -0.903 -999 -4.673 -999 1945.16 9.414164 -999 -0.465 -999 -4.684 -999 1945.41 9.611211 -999 -1.03 -999 -4.807 -999 1945.66 9.073781 -999 -1.404 -999 -4.885 -999 1945.9 9.177186 -999 -0.461 -999 -4.818 -999 1946.13 9.244296 -999 -0.66 -999 -4.791 -999 1946.37 9.618373 -999 -0.918 -999 -4.794 -999 1946.6 9.550232 -999 -0.986 -999 -4.835 -999 1946.83 9.58979 -999 -0.666 -999 -4.905 -999 1947.1 8.506726 -999 -0.506 -999 -5.092 -999 1947.38 8.811133 -999 -0.618 -999 -4.942 -999 1947.65 9.031091 -999 -1.2 -999 -4.783 -999 1947.89 9.109155 -999 -1.449 -999 -4.944 -999 1948.08 8.9957 -999 -1.36 -999 -5.187 -999 1948.27 8.704181 -999 0.751 -999 -4.661 -999 1948.46 8.799436 -999 -0.864 -999 -4.831 -999 1948.65 8.793633 -999 -1.032 -999 -4.873 -999 1948.83 8.990624 -999 -1.667 -999 -4.893 -999 1949.07 8.925757 -999 -1.272 -999 -4.985 -999 1949.3 8.982489 -999 -1.109 -999 -4.744 -999 1949.53 9.615656 -999 -0.966 -999 -4.666 -999 1949.76 9.704796 -999 -1.274 -999 -4.904 -999 1950.02 9.572715 -999 -0.773 -999 -5.04 -999 1950.29 9.542794 -999 -0.733 -999 -4.888 -999 1950.57 9.665073 -999 -0.913 -999 -4.763 -999 1950.84 9.444891 -999 -0.742 -999 -4.78 -999 1951.11 9.084661 -999 -0.101 -999 -4.705 -999 1951.39 8.34929 -999 -1.265 -999 -4.804 -999 1951.66 9.322761 -999 -0.448 -999 -4.796 -999 1951.75 8.924304 -999 -1.527 -999 -5.058 -999 1952 8.381727 -999 -0.787 -999 -5.048 -999 1952.51 9.057559 -999 -0.789 -999 -5.033 -999 1952.83 8.351492 0.389854 -0.854 0.111 -5.1425 0.1515 1953.14 7.947505 -999 -0.395 -999 -5.126 -999 1953.42 8.418554 0.115411 -0.919 0.371 -4.8125 0.825 1953.66 8.705613 0.272223 -0.837 0.187 -4.7965 0.135 1953.91 8.829608 0.244137 -0.8105 0.965 -4.8605 0.85 1954.15 8.450309 0.972429 -1.1855 0.1351 -4.929 0.12 1954.51 8.72136 0.138464 -0.885 0.178 -4.8185 0.915 1954.71 8.588107 -999 -0.481 -999 -4.667 -999 1954.91 8.994905 -999 -1.19 -999 -4.655 -999 1955.11 8.661504 -999 -1.117 -999 -4.819 -999 1955.31 8.985743 -999 -0.768 -999 -4.764 -999 1955.48 9.172323 -999 0.113 -999 -4.744 -999 1955.63 8.751874 -999 -0.524 -999 -4.652 -999 1955.78 9.561984 -999 -0.146 -999 -4.762 -999 1955.94 9.634206 -999 -0.771 -999 -4.817 -999 1956.09 9.717783 -999 -0.628 -999 -4.784 -999 1956.24 9.397437 -999 -0.203 -999 -4.809 -999 1956.39 9.058099 -999 -0.153 -999 -4.837 -999 1956.54 9.368557 -999 -0.043 -999 -4.829 -999 1956.7 9.009226 -999 -0.073 -999 -4.881 -999 1956.85 9.575257 -999 -0.704 -999 -4.567 -999 1957 9.948487 -999 -0.409 -999 -4.601 -999 1957.15 10.21145 -999 -0.46 -999 -4.651 -999 1957.3 10.27678 -999 -0.706 -999 -4.74 -999 1957.46 10.5676 -999 -0.181 -999 -4.674 -999 1957.6 9.999703 -999 -0.415 -999 -4.769 -999 1957.71 9.708735 0.784826 -0.283 0.123 -4.759 0.35 1957.88 9.390627 0.335449 -0.4805 0.3595 -4.8395 0.885 1958.06 9.081136 0.186111 -0.8565 0.235 -4.874 0.472 1958.23 9.311105 0.178944 -0.867 0.37 -4.835 0.81 1958.4 9.453842 0.115643 -0.9215 0.1465 -4.8935 0.1885 1958.57 9.786432 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