Kaite Cave, Spain Holocene Oxygen Isotope Data Domínguez-Villar, D.; Wang, X.; Krklec, K.; Cheng, H.; Edwards, R.L. Domínguez-Villar, D. Wang, X. Krklec, K. Cheng, H. Edwards, R.L. earth science/paleoclimate/speleothems (delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,composited|corrected,isotope ratio mass spectrometry,N,corrected for ice volume; composite of 4 cores) earth science/paleoclimate/speleothems (age,null,null,calendar year before present,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (age,null,unspecified margin of error,calendar year,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (Kaite Cave>LATITUDE 43.04>LONGITUDE -3.6597) Changes in ocean dynamics in the northern North Atlantic affect the thermohaline circulation that controls global climate. During glacial and deglaciation periods these dynamics are enhanced due to large variations in the surface ocean density caused by changes in glacier volumes. During full interglacial conditions, the dominant role of the northern North Atlantic on global climate is limited due to the reduced discharge of freshwater to the ocean, causing other regional dynamics to gain importance. Here we present a speleothem d18O record from the Iberian Peninsula that supports that the northern North Atlantic and tropical North Atlantic were both source regions of millennial climate oscillations during the Holocene. The speleothem d18O signal records millennial time-scale changes in the hydrological cycle as a result of persistent anomalies of the Gulf Stream-North Atlantic Current dynamics. In addition, the speleothem d18O record shows synchronous variability with records from the eastern Pacific region though the entire Holocene, whereas records from western Pacific region have limited or no correlation beyond periods of major instability of the northern North Atlantic. The discontinuous climate connection among the studied records is the result of different mechanisms affecting the climate system that originated in distant regions. We suggest that two regions, the tropical North Atlantic and northern North Atlantic, alternate their dominance as source regions causing millennial climate anomalies in large planetary regions. The duration of these persistent climate changes and the extension of the regions affected depend on the region triggering the anomaly because different mechanisms affecting the climate system are involved. STUDY NOTES: Composite Holocene speleothem oxygen isotope (d18O) data, based on 4 speleothems from Kaite Cave, Cantabrian Range, northern Spain, corrected for ice-volume effect. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Domínguez-Villar, D. Investigator : Wang, X. Investigator : Krklec, K. Investigator : Cheng, H. Investigator : Edwards, R.L. 2017-03-24 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/21730 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/kaite2017d18o.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/kaite2017d18o.txt English https://www.ncdc.noaa.gov/paleo/study/21730 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/kaite2017d18o.txt David Dominguez-Villar, Xianfeng Wang, Kristina Krklec, Hai Cheng, and R. Lawrence Edwards 2017The control of the tropical North Atlantic on Holocene millennial climate oscillationsGeology454303-30610.1130/G38573.1http://geology.gsapubs.org/content/45/4/303.abstract START YEAR: 9745 cal yr BP * END YEAR: 304 cal yr BP -3.6597 43.04 -3.6597 43.04