noaa-cave-10669
Hollywood Cave, New Zealand MIS 2-4 Stalagmite Stable Isotope Data
Whittaker, T.E.; Hendy, C.H.; Hellstrom, J.C.
Hollywood Cave, New Zealand MIS 2-4 Stalagmite Stable Isotope Data
2011-03-30
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/10669
Investigator
T.E.
Whittaker
Investigator
C.H.
Hendy
Investigator
J.C.
Hellstrom
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
age,null,null,calendar kiloyear before present,null,speleothems,null,null,N,present defined as 2000 CE
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,smoothed,isotope ratio mass spectrometry,N,smoothed using 5 point running mean
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
delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,smoothed,isotope ratio mass spectrometry,N,smoothed using 5 point running mean
earth science
paleoclimate
speleothems
carbon isotopes
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
westerlies
73216 cal yr BP
11374 cal yr BP
Complete
-41.95
-41.95
171.4667
171.4667
130
130
Continent
Australia/New Zealand
New Zealand
Hollywood Cave>LATITUDE -41.95>LONGITUDE 171.4667
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
Whittaker, T.E., C.H. Hendy, and J.C. Hellstrom. 2011.
Abrupt millennial-scale changes in intensity of Southern
Hemisphere westerly winds during marine isotope stages 2-4.
Geology, May 2011, v. 39, no. 5, pp. 455-458. doi:10.1130/G31827.1
Data Repository item 2011148.
The strength of mid-southern latitude westerly atmospheric
circulation plays an important role in global climate.
Due to a lack of long, continuous, high-resolution paleoclimate
archives from mid-southern latitudes, it remains unclear what
factors control changes in its intensity and how past changes
affected the climates of landmasses in their path. Here we show
growth rate and stable isotope (d18O, d13C) profiles from a
South Island, New Zealand, stalagmite (HW3) that permit
centennial-scale investigation of Southern Hemisphere westerly
paleointensity between 73 and 11 ka. Correlation between HW3
growth rate and isotope profiles suggests sensitivity to changes
in annual precipitation, a factor controlled by westerly intensity.
Low growth rates and relatively enriched isotope ratios define
long-term trends in HW3, supporting existing evidence that weaker
westerlies predominated during the last glacial period. Abrupt
millennial-scale events occur frequently, such that the HW3
record resembles Greenland ice core stable isotope profiles.
Furthermore, nearly synchronous timing of nine prominent wet
and cool intervals with Heinrich events supports studies
showing that increased westerly intensity is closely linked
to North Atlantic cooling. As well as Heinrich events, the HW3
profiles also show an Antarctic Cold Reversal-like event during
deglaciation, advocating for a bipolar seesaw of global climate
at that time.
STUDY NOTES: Stalagmite stable isotope (d13C and d18O) data from speleothem
HW3 taken from Hollywood Cave, South Island, New Zealand,
covering 73 to 11 KYrBP at near centennial resolution.
U-Th dating information also provided.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/pacific/hollywood2011.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/pacific/hollywood2011.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11