noaa-coral-16438 Southwest Madagascar Coral Oxygen Isotope Data and SST Reconstruction from 1660-1994 Zinke, J.; Loveday, B.; Reason, C.; Dullo, W.-C.; Kroon, D. Southwest Madagascar Coral Oxygen Isotope Data and SST Reconstruction from 1660-1994 2014-05-08 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/16438 Investigator J. Zinke Investigator B. Loveday Investigator C. Reason Investigator W.-C. Dullo Investigator D. Kroon earth science paleoclimate corals and sclerosponges delta 18O,Porites sp.,null,per mil VPDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate corals and sclerosponges delta 18O,Porites sp.,null,per mil VPDB,Mar-Feb,corals and sclerosponges,averaged,isotope ratio mass spectrometry,N,null earth science paleoclimate climate reconstructions|corals and sclerosponges sea surface temperature,delta 18O,null,degree Celsius,Mar-Feb,climate reconstructions|corals and sclerosponges,anomalized,null,N,anomalized to 1961-1990 AD 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 oxygen isotopes earth science paleoclimate corals and sclerosponges physical properties geoscientificInformation Sea Surface Temperature Reconstruction 1660 AD 1994 AD 290 cal yr BP -44 cal yr BP Complete -23.357167 -23.142967 43.58 43.619483 -1 -1 Ocean Indian Ocean Madagascar Ifaty Reef>LATITUDE -23.15>LONGITUDE 43.58 Ocean Indian Ocean Madagascar Ifaty and Tulear Reefs>LATITUDE -23.2>LONGITUDE 43.6 Ocean Indian Ocean Madagascar Tulear Reef>LATITUDE -23.357167>LONGITUDE 43.619483 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Zinke, J., B. Loveday, C. Reason, W.-C. Dullo, and D. Kroon 2014 Scientific Reports 4 4393 10.1038/srep04393

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. STUDY NOTES: 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) Indian Ocean, Agulhas Current, Mozambique Channel

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty1.txt Formatted Text File; Ifaty Reef Core 1 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-sst.txt Formatted Text File; Ifaty and Tulear Reef SST Reconstruction GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-tulear3.txt Formatted Text File; Tulear Reef Core 3 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty4.txt Formatted Text File; Ifaty Reef Core 4 d18O Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11