Mayotte Coral Coupled Sr/Ca and d18O Data Zinke, J.; Pfeiffer, M.; Timm, O.; Dullo, W.-C.; Kroon, D.; Thomassin, B.A. Zinke, J. Pfeiffer, M. Timm, O. Dullo, W.-C. Kroon, D. Thomassin, B.A. earth science/paleoclimate/climate reconstructions|corals and sclerosponges (delta 18O,delta 18O|sea water|strontium/calcium,null,per mil VPDB,null,climate reconstructions|corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges (delta 18O,Porites solida,null,per mil VPDB,null,corals and sclerosponges,interpolated,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/corals and sclerosponges (strontium/calcium,Porites solida,null,millimole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/climate reconstructions|corals and sclerosponges (age,null,null,year Common Era,null,climate reconstructions|corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges earth science/paleoclimate/corals and sclerosponges (Mayotte>LATITUDE -12.65>LONGITUDE 45.1) We reconstruct the hydrologic history of the tropical western Indian Ocean by calculating the d18Oseawater from coupled coral Sr/Ca and d18O measurements in a massive Porites coral from Mayotte (Comoros) between 1881 and 1994. We found that the precipitation-evaporation balance varies naturally on time scales of 5-6 years and 18-25 years. High (low) SSTs are associated with positive (negative) d18Oseawater implying that atmospheric variability is linked with remote climate modes in the Indian Ocean and the tropical/extratropical Pacific Ocean. Warm El Nino-Southern Oscillation events are associated with a negative freshwater balance at Mayotte. This case study demonstrates that a much denser network of d18Oseawater reconstructions is crucial for understanding the spatial patterns of hydrological conditions. STUDY NOTES: Coupled Sr/Ca and d18O measurements from a coral at Mayotte (Comoros) used as a proxy for d18Oseawater and hydrological variability (P-E) in the western tropical Indian Ocean. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Zinke, J. Investigator : Pfeiffer, M. Investigator : Timm, O. Investigator : Dullo, W.-C. Investigator : Kroon, D. Investigator : Thomassin, B.A. 2009-04-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/8424 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/mayotte2008.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2008_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/mayotte2008.xls https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/mayotte2008.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2008_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/mayotte2008.xls English https://www.ncdc.noaa.gov/paleo/study/8424 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/mayotte2008.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/zinke2008_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/mayotte2008.xls Zinke, J., M. Pfeiffer, O. Timm, W.-C. Dullo, D. Kroon, and B. A. Thomassin2008Mayotte coral reveals hydrological changes in the western Indian Ocean between 1881 and 1994Geophysical Research Letters3510.1029/2008GL035634 START YEAR: 1881 AD * END YEAR: 1994 AD 45.1 -12.65 45.1 -12.65