noaa-cave-9738
Cave of the Bells, Arizona 53-11 KYrBP Stalagmite Oxygen Isotope Data
Wagner, J.D.M.; Cole, J.E.; Beck, J.W.; Patchett, P.J.; Henderson, G.M.; Barnett, H.R.
Cave of the Bells, Arizona 53-11 KYrBP Stalagmite Oxygen Isotope Data
2010-10-08
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/9738
Investigator
J.D.M.
Wagner
Investigator
J.E.
Cole
Investigator
J.W.
Beck
Investigator
P.J.
Patchett
Investigator
G.M.
Henderson
Investigator
H.R.
Barnett
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil PDB,null,speleothems,corrected,isotope ratio mass spectrometry,N,corrected for ice volume
earth science
paleoclimate
speleothems
age,null,null,calendar year before present,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil PDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
abrupt climate change
drought
hydrology
53335 cal yr BP
11484 cal yr BP
Complete
31.75
31.75
-110.75
-110.75
Continent
North America
United States Of America
Arizona
Cave of the Bells>LATITUDE 31.75>LONGITUDE -110.75
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
Wagner, J.D.M., J.E. Cole, J.W. Beck, P.J. Patchett, G.M. Henderson,
and H.R. Barnett. 2010.
Moisture variability in the southwestern United States linked to
abrupt glacial climate change.
Nature Geoscience, Vol. 3, pp. 110-113, February 2010.
DOI: 10.1038/NGEO707
Many regions of the world experienced abrupt climate variability
during the last glacial period (75-15 thousand years ago). These
changes probably arose from interactions between Northern Hemisphere
ice sheets and circulation in the North Atlantic Ocean, but the
rapid and widespread propagation of these changes requires a
large-scale atmospheric response whose details remain unclear.
Here we use an oxygen isotope record from a speleothem collected
from the Cave of the Bells, Arizona, USA, to reconstruct aridity
in the southwestern United States during the last glacial period
and deglaciation. We find that, during this period, aridity in the
southwestern United States and climate in the North Atlantic region
show similar patterns of variability. Periods of warmth in the North
Atlantic Ocean, such as interstadials and the Bølling-Allerød warming,
correspond to drier conditions in the southwestern United States.
Conversely, cooler temperatures in the high latitudes are associated
with increased regional moisture. We propose that interstadial
warming of the North Atlantic Ocean diverted the westerly storm
track northward, perhaps through weakening of the Aleutian Low,
and thereby reduced moisture delivery to southwestern North America.
A similar response to future warming would exacerbate aridity
in this already very dry region.
STUDY NOTES: High-resolution stalagmite oxygen isotope data from Cave of the Bells,
Arizona, USA. Stalagmite COB-01-02 was recovered in July 2001,
and sampled for stable isotope analysis at 100 um increments.
62 U-Th dates provide age control. Average time step of the d18O data
is ~35 years, allowing for interpretation of abrupt climate variability
in the Southwestern USA.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/arizona/bells2010.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/syntrace/speleothem/cave-bells-cob-01-02.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/arizona/bells2010.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11