noaa-cave-14349
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.
Cold Air Cave, South Africa 350Yr Isotope Data and Temperature Reconstruction
2013-05-06
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/14349
Investigator
H.
Sundqvist
Investigator
K.
Holmgren
Investigator
J.
Fohlmeister
Investigator
Q.
Zhang
Investigator
M.
Bar-Matthews
Investigator
C.
Spötl
Investigator
H.
Körnich
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
carbon isotopes
earth science
paleoclimate
speleothems
other
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
Air Temperature Reconstruction
Little Ice Age (LIA)
1635 AD
1996 AD
315 cal yr BP
-46 cal yr BP
Complete
-24.02
-24.02
29.11
29.11
Continent
Africa
Southern Africa
South Africa
Cold Air Cave>LATITUDE -24.02>LONGITUDE 29.11
None
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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
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
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
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.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013temperature.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/africa/cold-air-cave2013isotopes.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11