noaa-ocean-1003954 Cariaco Basin Marine Sediment Mg/Ca, PAGES LOTRED-SA Version Villalba, R. Cariaco Basin Marine Sediment Mg/Ca, PAGES LOTRED-SA Version 2013-01-29 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/1003954 Investigator R. Villalba earth science paleoclimate paleocean geoscientificInformation PAGES 2k Network 1222 AD 1990 AD 728 cal yr BP -40 cal yr BP Complete 10.77 10.77 -64.77 -64.77 -450 -450 Ocean Atlantic Ocean North Atlantic Ocean PL07-73BC>LATITUDE 10.77>LONGITUDE -64.77 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 Black, D.E., M.A. Abahazi, R.C. Thunell, A. Kaplan, E.J. Tappa, and L.C. Peterson. 2007. An 8-century tropical Atlantic SST record from the Cariaco Basin: Baseline variability, twentieth-century warming, and Atlantic hurricane frequency. Paleoceanography, 22, PA4204. doi:10.1029/2007PA001427

We present the first direct comparison and calibration of a downcore foraminiferal Mg/Ca record to historical instrumental sea surface temperature (SST). Mg/Ca measured on the planktic foraminifer Globigerina bulloides from a Cariaco Basin sediment core strongly correlate with spring (March–May) instrumental SSTs between A.D. 1870 and 1990. A Mg/Ca SST equation is derived and a paleo-SST record is presented spanning the last 8 centuries, an interval that includes the end of the Medieval Warm Period and the Little Ice Age. The long-term record displays a surprising amount of variability. The temperature swings are not necessarily related to local upwelling variability but instead represent wider conditions in the Caribbean and western tropical Atlantic. The Mg/Ca SST record also captures the decadal and multidecadal variability observed in records of global land and sea surface temperature anomalies and Atlantic tropical storm and hurricane frequency over the late nineteenth and twentieth centuries. A divergence between the SST proxy record and Atlantic storm frequency around 1970 appears to reflect a fundamental change in Atlantic hurricane behavior noted in historical data. On average, twentieth-century temperatures are not the warmest in the entire record, but they do show the largest increase in magnitude and fastest rate of SST change over the last 800 a. STUDY NOTES: Uploaded by R. Neukom, data obtained from original authors.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/pages2k/lotred-sa2k/Cariaco.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/black2007/black2007.txt Original Data Source; black2007.txt USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11