noaa-cave-19199 Palawan, Philippines Younger Dryas Speleothem Oxygen Isotope Data Partin, J.W.; Quinn, T.M.; Shen, C.-C.; Okumura, Y.; Cardenas, M.B.; Siringan, F.P.; Banner, J.L.; Lin, K.; Hu, H.-M.; Taylor, F.W. Palawan, Philippines Younger Dryas Speleothem Oxygen Isotope Data 2015-09-03 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/19199 Investigator J.W. Partin Investigator T.M. Quinn Investigator C.-C. Shen Investigator Y. Okumura Investigator M.B. Cardenas Investigator F.P. Siringan Investigator J.L. Banner Investigator K. Lin Investigator H.-M. Hu Investigator F.W. Taylor earth science paleoclimate speleothems depth,null,null,millimeter,null,speleothems,null,null,N,null earth science paleoclimate speleothems age,null,null,calendar year before present,null,speleothems,null,null,N,null earth science paleoclimate speleothems age,null,95% confidence interval margin of error,calendar year,null,speleothems,null,null,N,null earth science paleoclimate speleothems delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems oxygen isotopes geoscientificInformation 13711 cal yr BP 10784 cal yr BP Complete 10.2 10.2 118.9 118.9 2 2 Ocean Pacific Ocean Western Pacific Ocean Philippines Puerto Princesa Subterranean River National Park>LATITUDE 10.2>LONGITUDE 118.9 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 Partin, J.W.; Quinn, T.M.; Shen, C.-C.; Okumura, Y.; Cardenas, M.B.; Siringan, F.P.; Banner, J.L.; Lin, K.; Hu, H.-M.; Taylor, F.W. 2015 Nature Communications 10.1038/ncomms9061 http://www.nature.com/ncomms/2015/150902/ncomms9061/full/ncomms9061.html

Proxy records of temperature from the Atlantic clearly show that the Younger Dryas was an abrupt climate change event during the last deglaciation, but records of hydroclimate are underutilized in defining the event. Here we combine a new hydroclimate record from Palawan, Philippines, in the tropical Pacific, with previously published records to highlight a difference between hydroclimate and temperature responses to the Younger Dryas. Although the onset and termination are synchronous across the records, tropical hydroclimate changes are more gradual (>100 years) than the abrupt (10-100 years) temperature changes in the northern Atlantic Ocean. The abrupt recovery of Greenland temperatures likely reflects changes in regional sea ice extent. Proxy data and transient climate model simulations support the hypothesis that freshwater forced a reduction in the Atlantic meridional overturning circulation, thereby causing the Younger Dryas. However, changes in ocean overturning may not produce the same effects globally as in Greenland. STUDY NOTES: Stalagmite oxygen isotope (d18O) data from the Puerto Princesa Subterranean River National Park, Palawan, Philippines, for 13,700 to 10,700 years before present, bracketing the Younger Dryas climate event.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/pacific/palawan2015d18o.txt Data File; Palawan Stalagmite SR02 d18O Data USA/NOAA DIF Version 9.8.4 2019-04-01 2019-04-01