Southwest Madagascar Coral Oxygen Isotope Data and SST Reconstruction from 1660-1994 Zinke, J.; Loveday, B.; Reason, C.; Dullo, W.-C.; Kroon, D. Zinke, J. Loveday, B. Reason, C. Dullo, W.-C. Kroon, D. Sea Surface Temperature Reconstruction 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 earth science/paleoclimate/corals and sclerosponges (Ifaty Reef>LATITUDE -23.15>LONGITUDE 43.58) (Ifaty and Tulear Reefs>LATITUDE -23.2>LONGITUDE 43.6) (Tulear Reef>LATITUDE -23.357167>LONGITUDE 43.619483) 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 NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Zinke, J. Investigator : Loveday, B. Investigator : Reason, C. Investigator : Dullo, W.-C. Investigator : Kroon, D. 2014-05-08 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/16438 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty1.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-sst.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-tulear3.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty4.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty1.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-sst.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-tulear3.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty4.txt English https://www.ncdc.noaa.gov/paleo/study/16438 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty1.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-sst.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-tulear3.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2014-sr/zinke2014-sr-ifaty4.txt Zinke, J., B. Loveday, C. Reason, W.-C. Dullo, and D. Kroon2014Madagascar corals track sea surface temperature variability in the Agulhas Current core region over the past 334 yearsScientific Reports4439310.1038/srep04393 START YEAR: 1660 AD * END YEAR: 1994 AD 43.58 -23.357167 43.619483 -23.142967