Cold Air Cave, South Africa 350Yr Isotope Data and Temperature Reconstruction Sundqvist, H.; Holmgren, K.; Fohlmeister, J.; Zhang, Q.; Bar-Matthews, M.; Spötl, C.; Körnich, H. Sundqvist, H. Holmgren, K. Fohlmeister, J. Zhang, Q. Bar-Matthews, M. Spötl, C. Körnich, H. Air Temperature Reconstruction Little Ice Age (LIA) earth science/paleoclimate/climate reconstructions|speleothems (surface air temperature,delta 18O,null,degree Celsius,annual,climate reconstructions|speleothems,anomalized|smoothed,null,N,"anomaly from 1961-1990 AD, 5 year smoothed") earth science/paleoclimate/speleothems (depth,null,null,millimeter,null,speleothems,null,null,N,null) earth science/paleoclimate/climate reconstructions|speleothems (age,null,null,year Common Era,null,climate reconstructions|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 (age,null,null,year Common Era,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems earth science/paleoclimate/speleothems earth science/paleoclimate/speleothems (Cold Air Cave>LATITUDE -24.02>LONGITUDE 29.11) A 350-year-long, well-dated d18O stalagmite record from the summer rainfall region in South Africa is positively correlated with regional air surface temperatures at interannual time scales. The coldest period documented in this record occurred between 1690 and 1740, slightly lagging the Maunder Minimum (1645-1710). A temperature reconstruction, based on the correlation between regional surface temperatures and the stalagmite d18O variations, indicates that parts of this period could have been as much as 1.4°C colder than today. Significant cycles of 22, 11 and 4.8 years demonstrate that the solar magnetic and the El Niño-Southern Oscillation cycle could be important drivers of multidecadal to interannual climate variability in this region. The observation that the most important driver of stalagmite d18O on interannual time scales from this subtropical region is regional surface temperature cautions against deterministic interpretations of d18O variations in low-latitude stalagmites as mainly driven by the amount of precipitation. STUDY NOTES: This dataset contains 350-year stalagmite stable isotope data and 5-yr smoothed annual mean temperature reconstruction (deviation from 1961-90 mean, ± 2std error = 0.578082397 degC) from Cold Air Cave in South Africa. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Sundqvist, H. Investigator : Holmgren, K. Investigator : Fohlmeister, J. Investigator : Zhang, Q. Investigator : Bar-Matthews, M. Investigator : Spötl, C. Investigator : Körnich, H. 2013-05-06 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/14349 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013temperature.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013isotopes.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013temperature.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013isotopes.txt English https://www.ncdc.noaa.gov/paleo/study/14349 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013temperature.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013isotopes.txt H.S. Sundqvist, K. Holmgren, J. Fohlmeister, Q. Zhang, M. Bar Matthews, C. Spötl, and H. Körnich. 2013. Evidence of a large cooling between 1690 and 1740 AD in southern Africa. Scientific Reports, Vol. 3, 1767. DOI: 10.1038/srep01767 START YEAR: 1635 AD * END YEAR: 1996 AD 29.11 -24.02 29.11 -24.02