# Line Islands Coral P/Ca Reconstructions from 1981-2002 #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: http://www.hurricane.ncdc.noaa.gov/pls/paleox/f?p=519:1:::::P1_STUDY_ID:15089 # # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/lavigne2013/lavigne2013-christmas1.txt # # Archive: Corals and Sclerosponges #--------------------------------------- # Contribution_Date # Date: 2013-09-26 #--------------------------------------- # Title: Line Islands Coral P/Ca Reconstructions from 1981-2002 # #--------------------------------------- # Investigators: LaVigne, Michele; Nurhati, Intan S.; Cobb, Kim M.; McGregor, Helen V.; Sinclair, Daniel; and Sherrell, Robert M. #--------------------------------------- # Description_Notes_and_Keywords # Description: # This dataset contains skeletal P/Ca data from 3 Line Island coral records through 3 El Nino events (Fanning and Christmas Islands). This dataset includes all P/Ca data published in LaVigne et al., 2013. Details on chronologies and methodology can be found in the original publication. #--------------------------------------- # Publication # Authors: LaVigne, M., I.S. Nurhati, K.M. Cobb, H.V. McGregor, D. Sinclair, and R.M. Sherrell # Published_Date_or_Year: 2013 # Published_Title: Systematic ENSO-driven nutrient variability recorded by central equatorial Pacific corals # Journal_Name: Geophysical Research Letters # Volume: 40 # Issue: 15 # Pages: 3956–3961 # Report Number: # DOI: doi:10.1002/grl.50765, 2013 # Abstract: Variations in ocean productivity are driven largely by nutrient supply to the photic zone, but temporal records of nutrient variability are sparse. Here we show scleractinian coral P/Ca proxy records of variations in phosphate concentrations during El Niño Southern Oscillation (ENSO) cycles in the central equatorial Pacific. Covarying P/Ca records in Porites corals from Christmas and Fanning Islands show a regional ~40% decrease during the upwelling relaxation of the 1997–1998 El Niño, consistent with less frequent nutrient measurements from this area. Similar ~35–45% skeletal P/Ca decreases occur during the 1982–1983 and 1986–1987 El Niño events, which predate satellite color and regional nutrient measurements. After each El Niño event, nutrient increases lag temperature recovery by 4–12months, likely reflecting uptake by massive phytoplankton blooms that followed resumption of upwelling. The results support the utility of coral P/Ca to probe the mechanisms linking ENSO, equatorial upwelling, and carbon cycling in the past. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: NSF Chemical Oceanography # Grant: OCE 0752544 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: American Chemical Society Petroleum Research Fund # Grant: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Australian Research Council Discovery Project # Grant: DP1092945 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Australian Institute of Nuclear Science and Engineering Research Fellowship # Grant: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Australian Institute of Nuclear Science and Engineering Research Awards # Grant: AINGRA09021 and ALNGRA10077 #--------------------------------------- # Site Information # Site_Name: Christmas Island Coral 1 # Northernmost_Latitude: 1.855333 # Southernmost_Latitude: 1.855333 # Easternmost_Longitude: -157.500133 # Westernmost_Longitude: -157.500133 # Elevation: 0 #--------------------------------------- # Data_Collection # Collection_Name: Christmas-1 LaVigne2013 # First_Year: 1994 # Last_Year: 2002 # Time_Unit: AD # Core_Length: # Notes: #--------------------------------------- # Chronology: # Chronologies described in auxiliary material published with LaVigne et al., 2013. #--------------------------------------- # Variables ## year_AD ,year,,,AD,,,, ## P/Ca_3mon ,Phosphorus/Calcium ratio,,,µmol/mol,,Corals and Sclerosponges,3-month smoothed, #------------------------------------- # Data # Missing_Values: NA year_AD P/Ca_3mon 1994.052846625 15.8891287007723 1994.116023875 14.4037299153802 1994.179201 13.6750793929633 1994.242378125 13.3939827063316 1994.305555375 13.1606833168803 1994.368732625 12.6091221873376 1994.431909875 12.4235605662351 1994.495087125 11.6819716926817 1994.558264375 12.7952966114351 1994.621441625 13.0600338737278 1994.684618875 12.1304877142259 1994.747796125 12.2367579158057 1994.810973375 10.5208067683459 1994.874150625 11.3446707483107 1994.937327875 12.6286102029772 1995.000531375 13.5052664508519 1995.064737125 14.2872864613887 1995.130895 13.3162751259266 1995.1990050625 13.2659717098046 1995.269040875 12.8446092825961 1995.3400265 12.3074325702218 1995.41101225 12.7973023442063 1995.4819979375 13.8614383581738 1995.552983625 13.6784162463708 1995.623969375 13.9808626241124 1995.694955 13.8814188723025 1995.765940625 12.619544737935 1995.836926375 12.6770959377121 1995.907912 13.2329597978862 1995.97883525 13.6050547129352 1996.04863 14.3445495968326 1996.11629225 15.044151825487 1996.181822125 14.3277218167451 1996.245282 14.2946514188074 1996.307738125 13.7945637309526 1996.370194375 13.6430399678153 1996.432650625 14.2689814537878 1996.495106875 13.8276682874793 1996.557563 13.6340499400553 1996.620019 16.294333067343 1996.682475125 15.6414516067595 1996.744931375 16.095022117825 1996.807387625 16.5859399674959 1996.869843875 14.504633592844 1996.9323 14.595903165908 1996.994756 14.3517500168681 1997.0570875 13.3617116672469 1997.11917 13.8522496483045 1997.181003375 14.8986529947862 1997.242587625 14.9754551360284 1997.304047375 15.9893012708102 1997.365507 14.2487564765024 1997.426966625 11.6416697273632 1997.488426375 10.5909683955307 1997.549886 9.70388123939394 1997.611345625 9.88161042763064 1997.672805375 10.8190508182006 1997.734265 11.4386333132255 1997.795724625 11.1644162273933 1997.857184375 10.7767613561718 1997.918644 10.6304327737003 1997.980103625 10.5284799450715 1998.041563375 10.7835773872296 1998.103023125 11.1963365131076 1998.164482875 11.7099387912638 1998.225942625 11.5180108978283 1998.287402375 11.9366449684159 1998.348862 11.9257437626642 1998.410321625 11.1287220717587 1998.471781375 10.9797854926195 1998.533241 10.7404899437057 1998.610065625 11.3417775157934 1998.68689025 12.1548191887172 1998.76371475 13.147859413243 1998.840539375 13.2553967213783 1998.901999 13.5411876248877 1998.963458625 13.5137748733169 1999.023796375 12.8374989915519 1999.081790375 12.7917760531563 1999.137341125 12.0457411132381 1999.19044875 12.4270027139716 1999.242235125 12.3771548660474 1999.293921875 13.1260432728514 1999.345608625 13.6154782183921 1999.410217125 14.2917130500563 1999.4748255 15.3025171667402 1999.539433875 16.4949294962758 1999.604042375 18.2057690097781 1999.655729125 18.5586675248732 1999.707415875 19.5925383309922 1999.759102625 19.3445078528026 1999.810789375 18.13916584604 1999.862476125 18.263818175559 1999.914162875 18.1183386460544 1999.965849625 17.8812370823234 2000.0178975 18.5338264206517 2000.071537125 17.8756167409103 2000.127638125 17.3804609611931 2000.186200375 17.8292308466568 2000.246862625 17.5783154208711 2000.308394375 17.5316963103874 2000.369926125 17.8543677805666 2000.431457875 17.4336240583123 2000.492989625 16.3234711627266 2000.554521375 16.1564692768016 2000.616053 15.2766459068998 2000.677584625 13.8360005610092 2000.739116375 13.8832492758876 2000.800648125 13.9807003347191 2000.862179875 14.1954323830824 2000.923711625 14.2696691957017 2000.985243375 13.7554981725246 2001.04955425 12.2536613744338 2001.11944125 10.4797547543865 2001.194922125 9.61723933131139 2001.27599675 9.64319736169615 2001.359886 9.90558903474913 2001.443793 10.2548311497998 2001.5277 10.1340237729279 2001.611607 10.2051150493999 2001.695514 11.123998658793 2001.779420875 12.5308767478868 2001.863327625 12.9428606330785 2001.947234375 12.8216229933876