# Southwest Madagascar Coral Oxygen Isotope Data and SST Reconstruction from 1660-1994 #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # # Online_Resource: http://www.hurricane.ncdc.noaa.gov/pls/paleox/f?p=519:1:::::P1_STUDY_ID:16438 # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/24611 # # Original_Source_URL: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zinke2014-sr/zinke2014-sr-ifaty1.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Corals and Sclerosponges #-------------------- # Contribution_Date # Date: 2014-05-08 #-------------------- # Title # Study_Name: Southwest Madagascar Coral Oxygen Isotope Data and SST Reconstruction from 1660-1994 #-------------------- # Investigators # Investigators: Zinke, J.; Loveday, B.; Reason, C.; Dullo, W.-C.; Kroon, D. #-------------------- # Description_and_Notes # Description: Oxygen isotope data from three cores of Porites sp. from SW Madagascar. 2 cores from Ifaty Reef 1 core from Tulear reef (Great Barrier Reef Tulear) Length: 1660-1994 Annual means March-February SST reconstruction coral composite of 3 cores: SST anomalies relative to 1961 to 1990 mean Coordinates GPS: Ifaty-4 23'08.578 S, 43'34.984 E (depth top colony at low tide 1.1m) Ifaty-1 23'09.435 S, 43'35.291 E (depth top colony at low tide 1.8m) Tulear-3 23'21.430 S, 43'37.169 E (depth top colony at low tide 0.6m) #-------------------- # Publication # Authors: Zinke, J.; Loveday, B.; Reason, C.; Dullo, W.-C.; Kroon, D. # Published_Date_or_Year: 2014 # Published_Title: Madagascar corals track sea surface temperature variability in the Agulhas Current core region over the past 334 years # Journal_Name: Scientific Reports # Volume: 4 # Edition: # Issue: 4393 # Pages: # DOI: 10.1038/srep04393 # Online_Resource: # Full_Citation: # Abstract: The Agulhas Current (AC) is the strongest western boundary current in the Southern Hemisphere and is key for weather and climate patterns, both regionally and globally. Its heat transfer into both the midlatitude South Indian Ocean and South Atlantic is of global significance. A new composite coral record (Ifaty and Tulear massive Porites corals), is linked to historical AC sea surface temperature (SST) instrumental data, showing robust correlations. The composite coral SST data start in 1660 and comprise 200 years more than the AC instrumental record. Numerical modelling exhibits that this new coral derived SST record is representative for the wider core region of the AC. AC SSTs variabilities show distinct cooling through the Little Ice Age and warming during the late 18th, 19th and 20th century, with significant decadal variability superimposed. Furthermore, the AC SSTs are teleconnected with the broad southern Indian and Atlantic Oceans, showing that the AC system ! is pivotal for inter ocean heat exchange south of Africa. #------------------ # Authors: Anderson, D.M., Tardif, R., Horlick, K., Erb, M.P., Hakim, G.J., Noone, D., Perkins, W.A., and E. Steig # Published_Date_or_Year: 2018 # Published_Title: Additions to the last millennium reanalysis multi-proxy database # Journal_Name: Data Science Journal # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: # Online_Resource: # Full_Citation: Anderson, D.M., Tardif, R., Horlick, K., Erb, M.P., Hakim, G., J., Noone, D., Perkins, W.A., and E. Steig, submitted. Additions to the last millennium reanalysis multi-proxy database. Data Science Journal. # Abstract: Progress in paleoclimatology increasingly occurs via data syntheses. We describe additions to a collection prepared for use in paleoclimate state estimation, specifically the Last Millennium Reanalysis (LMR). The 2290 additional series include 2152 tree ring chronologies and 138 other series. They supplement the collection used previously and together form a database titled LMRdb 1.0.0. The additional data draws from lake core, ice core, coral, speleothem, and tree ring archives, using published data primarily from the NOAA Paleoclimatology archive and a set of tree ring width chronologies standardized from raw International Tree Ring Data Bank ring width series. In contrast to many previous paleo compilations, the data were not selected (screened) on the basis of their environmental correlation, multi-century length, or other attributes. The inclusion of proxies sensitive to moisture and other environmental variables expands their use in data assimilation. A preliminary calibration using linear regression with mean annual temperature reveals characteristics of the proxy series and their relationship to temperature, as well as the noise and error characteristics of the records. The additional records are structured as individual files in the NOAA Paleoclimatology format and archived at NOAA Paleoclimatology (Anderson et al. 2018) and will continue to be improved and expanded as part of the LMR Project. The additions represent a four-fold increase in the number of records available for assimilation, provide expanded geographic coverage, and add additional proxy variables. Applications include data assimilation, proxy system model development, and paleoclimate reconstruction using climate field reconstruction and other methods. #------------------ # Funding_Agency # Funding_Agency_Name: # Grant: #------------------ # Funding_Agency_Name: National Science Foundation # Grant:AGS-1304263 # Funding_Agency_Name: National Oceanic and Atmospheric Administration # Grant:NA14OAR4310176 #------------------ # Site_Information # Site_Name: Ifaty Reef, SW Madagascar # Location: Ocean>Indian Ocean>Madagascar # Country: Madagascar # Northernmost_Latitude: -23.15725 # Southernmost_Latitude: -23.15725 # Easternmost_Longitude: 43.588183 # Westernmost_Longitude: 43.588183 # Elevation: -1.8 m #------------------ # Data_Collection # Collection_Name: 14mada01a # Earliest_Year: 1882 # Most_Recent_Year: 1994 # Time_Unit: y_ad # Core_Length: # Notes: {"database":"LMR"} From Ifaty Core 1. Annual mean is from March-February. Previous name Ifaty-1 d18O Z14 #------------------ # Species # Species_Name: Porites sp. # Common_Name: #------------------ # Chronology: # # # # # # # # #---------------- # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ##age age, , ,years AD, , Corals and Sclerosponges, , ,N ##d18O delta 18 Oxygen, Porites sp., , permil VPDB, March to February, Corals and Sclerosponges, , ,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: NAN # age d18O 1882 -4.477 1883 -4.221 1884 -4.426 1885 -4.488 1886 -4.421 1887 -4.47 1888 -4.567 1889 -4.467 1890 -4.656 1891 -4.534 1892 -4.739 1893 -4.489 1894 -4.516 1895 -4.325 1896 -4.391 1897 -4.551 1898 -4.407 1899 -4.415 1900 -4.501 1901 -4.513 1902 -4.388 1903 -4.34 1904 -4.378 1905 -4.323 1906 -4.608 1907 -4.334 1908 -4.426 1909 -4.367 1910 -4.321 1911 -4.466 1912 -4.439 1913 -4.375 1914 -4.603 1915 -4.181 1916 -4.286 1917 -4.325 1918 -4.424 1919 -4.375 1920 -4.28 1921 -4.551 1922 -4.363 1923 -4.419 1924 -4.373 1925 -4.567 1926 -4.432 1927 -4.607 1928 -4.353 1929 -4.428 1930 -4.366 1931 -4.427 1932 -4.423 1933 -4.306 1934 -4.256 1935 -4.333 1936 -4.611 1937 -4.585 1938 -4.506 1939 -4.497 1940 -4.689 1941 -4.588 1942 -4.458 1943 -4.76 1944 -4.639 1945 -4.343 1946 -4.433 1947 -4.368 1948 -4.608 1949 -4.6415 1950 -4.675 1951 -4.477 1952 -4.456 1953 -4.607 1954 -4.214 1955 -4.592 1956 -3.984 1957 -4.466 1958 -4.675 1959 -4.625 1960 -4.48 1961 -4.407 1962 -4.516 1963 -4.676 1964 -4.555 1965 -4.479 1966 -4.464 1967 -4.452 1968 -4.378 1969 -4.385 1970 -4.393 1971 -4.693 1972 -4.719 1973 -4.746 1974 -4.491 1975 -4.215 1976 -4.164 1977 -4.483 1978 -4.667 1979 -4.61 1980 -4.938 1981 -4.431 1982 -4.738 1983 -4.633 1984 -4.458 1985 -4.76 1986 -4.725 1987 -4.727 1988 -4.676 1989 -4.695 1990 -4.641 1991 -4.769 1992 -4.783 1993 -4.702 1994 -4.793