# Tropical Ocean Sr/Ca and U/Ca Data for the Twentieth Century #----------------------------------------------------------------------- # World Data Service 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: https://www.ncdc.noaa.gov/paleo/study/22056 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/coral/multiregion/alpert2017/alpert2017-pr-of-002.txt # Description: NOAA location of the template # # Archive: Corals and Sclerosponges # # Parameter_Keywords: chemistry #--------------------------------------- # Contribution_Date # Date: 2017-05-04 #--------------------------------------- # File_Last_Modified_Date # Date: 2017-05-04 #--------------------------------------- # Title # Study_Name: Tropical Ocean Sr/Ca and U/Ca Data for the Twentieth Century #--------------------------------------- # Investigators # Investigators: Alpert, Alice; Cohen, Anne; Oppo, Delia; DeCarlo, Thomas; Gaetani, Glenn; Hernandez-Delgado, Edwin; Winter, Amos; Gonneea, Meagan #--------------------------------------- # Description_Notes_and_Keywords # Description: chronology based on band counting of CT scan # Provided Keywords: biomineralization, SST #--------------------------------------- # Publication # Authors: Alpert, A.E., A.L. Cohen, D.W. Oppo, T.M. DeCarlo, G.A. Gaetani, E.A. Hernandez-Delgado, A. Winter, and M.E. Gonneea # Published_Date_or_Year: 2017 # Published_Title: Twentieth century warming of the tropical Atlantic captured by Sr-U paleothermometry # Journal_Name: Paleoceanography # Volume: 32 # Edition: # Issue: 2 # Pages: 146-160 # Report Number: # DOI: 10.1002/2016PA002976 # Online_Resource: http://onlinelibrary.wiley.com/doi/10.1002/2016PA002976/full # Full_Citation: # Abstract: Coral skeletons are valuable archives of past ocean conditions. However, interpretation of coral paleotemperature records is confounded by uncertainties associated with single-element ratio thermometers, including Sr/Ca. A new approach, Sr-U, uses U/Ca to constrain the influence of Rayleigh fractionation on Sr/Ca. Here we build on the initial Pacific Porites Sr-U calibration to include multiple Atlantic and Pacific coral genera from multiple coral reef locations spanning a temperature range of 23.15–30.12°C. Accounting for the wintertime growth cessation of one Bermuda coral, we show that Sr-U is strongly correlated with the average water temperature at each location (r2 = 0.91, P < 0.001, n = 19). We applied the multispecies spatial calibration between Sr-U and temperature to reconstruct a 96 year long temperature record at Mona Island, Puerto Rico, using a coral not included in the calibration. Average Sr-U derived temperature for the period 1900–1996 is within 0.12°C of the average instrumental temperature at this site and captures the twentieth century warming trend of 0.06°C per decade. Sr-U also captures the timing of multiyear variability but with higher amplitude than implied by the instrumental data. Mean Sr-U temperatures and patterns of multiyear variability were replicated in a second coral in the same grid box. Conversely, Sr/Ca records from the same two corals were inconsistent with each other and failed to capture absolute sea temperatures, timing of multiyear variability, or the twentieth century warming trend. Our results suggest that coral Sr-U paleothermometry is a promising new tool for reconstruction of past ocean temperatures. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: NSF # Grant: GRFP, OCE-1338320, OCE- 1031971, OCE-0926986, HRD 0734826 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Woods Hole Oceanographic Institution # Grant: Access to the Sea 27500056 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: University of Puerto Rico # Grant: Central Administration #--------------------------------------- # Site Information # Site_Name: Pinacles # Location: Puerto Rico # Country: United States # Northernmost_Latitude: 17.93 # Southernmost_Latitude: 17.93 # Easternmost_Longitude: –67.01 # Westernmost_Longitude: –67.01 # Elevation: #--------------------------------------- # Data_Collection # Collection_Name: Pinacles PR-OF-002 Alpert2017 # First_Year: 1952 # Last_Year: 1989 # Time_Unit: years CE # Core_Length: # Notes: 7m water depth #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab- 10 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data,additional info ## Year_AD age,,,year CE,,,,,N, ## srca_PR-OF-002 strontium/calcium,Orbicella faveolata,,mmol/mol,,Coral and Sclerosponge,,inductively coupled plasma mass spectrometer,N, ## srca_PR-OF-002_err strontium/calcium,Orbicella faveolata,one standard deviation,mmol/mol,,Coral and Sclerosponge,,inductively coupled plasma mass spectrometer,N, ## uca_PR-OF-002 uranium/calcium,Orbicella faveolata,,umol/mol,,Coral and Sclerosponge,,inductively coupled plasma mass spectrometer,N, ## uca_PR-OF-002 _err uranium/calcium,Orbicella faveolata,one standard deviation,umol/mol,,Coral and Sclerosponge,,inductively coupled plasma mass spectrometer,N, #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: Year_AD srca_PR-OF-002 srca_PR-OF-002_err uca_PR-OF-002 uca_PR-OF-002 _err 1989.92 9.327 0.035 1.27 0.02 1989.72 9.207 0.035 1.26 0.02 1989.52 9.323 0.035 1.25 0.02 1989.35 9.157 0.035 1.19 0.02 1989.23 9.184 0.035 1.23 0.02 1989.10 9.372 0.035 1.33 0.02 1988.98 9.365 0.035 1.32 0.02 1988.85 9.306 0.035 1.30 0.02 1988.73 9.348 0.035 1.26 0.02 1988.60 9.350 0.035 1.32 0.02 1988.48 9.105 0.035 1.11 0.02 1988.32 9.476 0.035 1.38 0.02 1988.12 9.327 0.035 1.32 0.02 1987.92 9.315 0.035 1.34 0.02 1987.72 9.277 0.035 1.30 0.02 1987.52 9.316 0.035 1.28 0.02 1987.35 9.370 0.035 1.27 0.02 1987.20 9.493 0.035 1.31 0.02 1987.06 9.398 0.035 1.33 0.02 1986.92 9.340 0.035 1.33 0.02 1986.77 9.366 0.035 1.34 0.02 1986.63 9.293 0.035 1.26 0.02 1986.49 9.407 0.035 1.38 0.02 1986.35 9.301 0.035 1.30 0.02 1986.06 9.386 0.035 1.31 0.02 1985.92 9.371 0.035 1.31 0.02 1985.77 9.274 0.035 1.25 0.02 1985.63 9.251 0.035 1.30 0.02 1985.49 9.456 0.035 1.37 0.02 1985.35 9.217 0.035 1.16 0.02 1985.20 9.195 0.035 1.21 0.02 1985.06 9.377 0.035 1.26 0.02 1984.92 9.255 0.035 1.22 0.02 1984.77 9.180 0.035 1.24 0.02 1984.63 9.270 0.035 1.29 0.02 1984.49 9.304 0.035 1.36 0.02 1984.33 9.384 0.035 1.38 0.02 1984.17 9.458 0.035 1.40 0.02 1984.00 9.305 0.035 1.35 0.02 1983.83 9.325 0.035 1.30 0.02 1983.67 9.245 0.035 1.25 0.02 1983.50 9.142 0.035 1.08 0.02 1983.33 9.255 0.035 1.33 0.02 1983.17 9.405 0.035 1.34 0.02 1983.00 9.234 0.035 1.25 0.02 1982.83 9.233 0.035 1.24 0.02 1982.67 9.396 0.035 1.35 0.02 1982.50 9.495 0.035 1.46 0.02 1982.33 9.526 0.035 1.50 0.02 1982.17 9.584 0.035 1.45 0.02 1982.00 9.624 0.035 1.52 0.02 1981.83 9.518 0.035 1.50 0.02 1981.67 9.354 0.035 1.38 0.02 1981.50 9.317 0.035 1.34 0.02 1981.32 9.536 0.035 1.54 0.02 1981.12 9.479 0.035 1.51 0.02 1980.92 9.460 0.035 1.47 0.02 1980.72 9.317 0.035 1.34 0.02 1980.52 9.289 0.035 1.40 0.02 1980.32 9.412 0.035 1.44 0.02 1980.12 9.278 0.035 1.33 0.02 1979.92 9.353 0.035 1.38 0.02 1979.72 9.345 0.035 1.31 0.02 1979.52 9.336 0.035 1.37 0.02 1979.32 9.194 0.035 1.28 0.02 1979.12 9.470 0.035 1.53 0.02 1978.92 9.457 0.035 1.46 0.02 1978.72 9.371 0.035 1.36 0.02 1978.52 9.195 0.035 1.31 0.02 1978.33 9.265 0.035 1.32 0.02 1978.17 9.195 0.035 1.32 0.02 1978.00 9.361 0.035 1.40 0.02 1977.83 9.366 0.035 1.42 0.02 1977.67 9.260 0.035 1.23 0.02 1977.50 9.143 0.035 1.29 0.02 1977.32 9.178 0.035 1.42 0.02 1977.12 9.147 0.035 1.33 0.02 1976.92 9.221 0.035 1.32 0.02 1976.72 9.389 0.035 1.36 0.02 1976.52 9.340 0.035 1.42 0.02 1976.32 9.393 0.035 1.44 0.02 1976.12 9.275 0.035 1.36 0.02 1975.06 9.031 0.035 1.10 0.02 1974.92 9.016 0.035 1.08 0.02 1974.77 9.051 0.035 1.08 0.02 1974.63 9.058 0.035 1.14 0.02 1974.49 9.118 0.035 1.25 0.02 1974.32 9.209 0.035 1.23 0.02 1974.12 9.325 0.035 1.26 0.02 1973.92 9.302 0.035 1.28 0.02 1973.72 9.389 0.035 1.29 0.02 1973.52 9.237 0.035 1.26 0.02 1973.32 9.141 0.035 1.18 0.02 1973.12 9.120 0.035 1.18 0.02 1972.92 9.212 0.035 1.20 0.02 1972.72 9.203 0.035 1.21 0.02 1972.52 9.323 0.035 1.34 0.02 1972.29 9.492 0.035 1.51 0.02 1972.04 9.376 0.035 1.41 0.02 1971.79 9.309 0.035 1.35 0.02 1971.54 9.413 0.035 1.46 0.02 1971.35 9.199 0.035 1.33 0.02 1971.20 9.220 0.035 1.31 0.02 1971.06 9.269 0.035 1.28 0.02 1970.92 9.140 0.035 1.20 0.02 1970.77 9.128 0.035 1.17 0.02 1970.63 9.086 0.035 1.15 0.02 1970.49 9.182 0.035 1.29 0.02 1970.35 9.283 0.035 1.28 0.02 1970.20 9.031 0.035 1.15 0.02 1970.06 9.021 0.035 1.10 0.02 1969.77 9.038 0.035 1.10 0.02 1969.63 8.954 0.035 1.11 0.02 1969.49 8.940 0.035 1.15 0.02 1969.32 9.139 0.035 1.17 0.02 1969.12 9.052 0.035 1.10 0.02 1968.92 9.038 0.035 1.13 0.02 1968.72 9.047 0.035 1.15 0.02 1968.52 9.041 0.035 1.25 0.02 1968.32 9.032 0.035 1.18 0.02 1968.12 9.309 0.035 1.32 0.02 1967.92 9.192 0.035 1.22 0.02 1967.72 9.073 0.035 1.14 0.02 1967.52 9.136 0.035 1.26 0.02 1967.33 9.358 0.035 1.32 0.02 1967.17 9.051 0.035 1.16 0.02 1967.00 9.020 0.035 1.15 0.02 1966.83 8.937 0.035 1.07 0.02 1966.67 9.264 0.035 1.29 0.02 1966.50 9.110 0.035 1.20 0.02 1966.32 9.024 0.035 1.11 0.02 1966.12 9.119 0.035 1.21 0.02 1965.92 9.188 0.035 1.27 0.02 1965.72 9.148 0.035 1.34 0.02 1965.52 9.325 0.035 1.38 0.02 1965.32 9.103 0.035 1.19 0.02 1965.12 9.277 0.035 1.30 0.02 1964.92 9.202 0.035 1.28 0.02 1964.72 9.115 0.035 1.20 0.02 1964.52 8.977 0.035 1.17 0.02 1964.35 8.979 0.035 1.10 0.02 1964.20 9.149 0.035 1.22 0.02 1964.06 9.057 0.035 1.14 0.02 1963.92 9.160 0.035 1.22 0.02 1963.77 9.162 0.035 1.23 0.02 1963.63 9.083 0.035 1.17 0.02 1963.49 9.039 0.035 1.17 0.02 1963.32 9.290 0.035 1.32 0.02 1963.12 9.342 0.035 1.36 0.02 1962.92 9.289 0.035 1.32 0.02 1962.72 9.191 0.035 1.30 0.02 1962.52 9.357 0.035 1.37 0.02 1962.33 9.125 0.035 1.25 0.02 1962.17 9.223 0.035 1.25 0.02 1962.00 9.240 0.035 1.23 0.02 1961.83 9.308 0.035 1.16 0.02 1961.67 9.516 0.035 1.29 0.02 1961.50 9.351 0.035 1.21 0.02 1961.32 9.348 0.035 1.23 0.02 1961.12 9.247 0.035 1.12 0.02 1960.92 9.534 0.035 1.29 0.02 1960.72 9.088 0.035 1.16 0.02 1960.52 9.071 0.035 1.16 0.02 1960.33 9.440 0.035 1.42 0.02 1960.17 9.298 0.035 1.32 0.02 1960.00 9.270 0.035 1.32 0.02 1959.83 9.294 0.035 1.29 0.02 1959.67 9.333 0.035 1.32 0.02 1959.50 9.387 0.035 1.38 0.02 1959.35 9.247 0.035 1.29 0.02 1959.23 9.282 0.035 1.31 0.02 1959.10 9.319 0.035 1.31 0.02 1958.98 9.367 0.035 1.34 0.02 1958.85 9.359 0.035 1.32 0.02 1958.73 9.323 0.035 1.29 0.02 1958.60 9.253 0.035 1.28 0.02 1958.48 9.339 0.035 1.40 0.02 1958.33 9.630 0.035 1.47 0.02 1958.17 9.420 0.035 1.28 0.02 1958.00 9.392 0.035 1.27 0.02 1957.83 9.322 0.035 1.20 0.02 1957.67 9.207 0.035 1.18 0.02 1957.50 9.409 0.035 1.31 0.02 1957.33 9.638 0.035 1.45 0.02 1957.17 9.535 0.035 1.36 0.02 1957.00 9.423 0.035 1.25 0.02 1956.83 9.357 0.035 1.19 0.02 1956.67 9.232 0.035 1.19 0.02 1956.50 9.223 0.035 1.19 0.02 1956.33 9.320 0.035 1.31 0.02 1956.17 9.222 0.035 1.21 0.02 1956.00 9.391 0.035 1.28 0.02 1955.83 9.323 0.035 1.18 0.02 1955.67 9.329 0.035 1.24 0.02 1955.50 9.459 0.035 1.32 0.02 1955.32 9.313 0.035 1.25 0.02 1955.12 9.278 0.035 1.21 0.02 1954.92 9.345 0.035 1.25 0.02 1954.72 9.370 0.035 1.26 0.02 1954.52 9.419 0.035 1.30 0.02 1954.33 9.461 0.035 1.38 0.02 1954.17 9.464 0.035 1.38 0.02 1954.00 9.561 0.035 1.43 0.02 1953.83 9.442 0.035 1.35 0.02 1953.67 9.453 0.035 1.35 0.02 1953.50 9.521 0.035 1.44 0.02 1953.33 9.544 0.035 1.42 0.02 1953.17 9.285 0.035 1.30 0.02 1953.00 9.271 0.035 1.25 0.02 1952.83 9.395 0.035 1.28 0.02 1952.67 9.435 0.035 1.29 0.02