noaa-cave-9640
Hoti Cave, Oman 9-6 KYrBP Stalagmite Oxygen Isotope Data
Neff, U.; Burns, S.J.; Mangini, A.; Mudelsee, M.; Fleitmann, D.; Matter, A.
Hoti Cave, Oman 9-6 KYrBP Stalagmite Oxygen Isotope Data
2010-10-13
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/9640
Investigator
U.
Neff
Investigator
S.J.
Burns
Investigator
A.
Mangini
Investigator
M.
Mudelsee
Investigator
D.
Fleitmann
Investigator
A.
Matter
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 VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
Intertropical Convergence Zone (ITCZ)
Monsoon
9607 cal yr BP
6026 cal yr BP
Complete
23.08
23.08
57.35
57.35
800
800
Continent
Asia
Western Asia
Middle East
Oman
Hoti Cave>LATITUDE 23.08>LONGITUDE 57.35
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
Neff, U., S.J. Burns, A. Mangini, M. Mudelsee, D. Fleitmann,
and A. Matter. 2001.
Strong coherence between solar variability and the monsoon
in Oman between 9 and 6 kyr ago.
Nature, Vol. 411, pp. 290-293, 17 May 2001.
Variations in the amount of solar radiation reaching the Earth
are thought to influence climate, but the extent of this
influence on timescales of millennia to decades is unclear.
A number of climate records show correlations between solar
cycles and climate, but the absolute changes in solar intensity
over the range of decades to millennia are small and the influence
of solar flux on climate is not well established. The formation
of stalagmites in northern Oman has recorded past northward shifts
of the intertropical convergence zone, whose northward migration
stops near the southern shoreline of Arabia in the present climate.
Here we present a high-resolution record of oxygen isotope variations,
for the period from 9.6 to 6.1 kyr before present, in a Th-U-dated
stalagmite from Oman. The d18O record from the stalagmite,
which serves as a proxy for variations in the tropical circulation
and monsoon rainfall, allows us to make a direct comparison of the
d18O record with the D14C record from tree rings, which largely
reflects changes in solar activity. The excellent correlation
between the two records suggests that one of the primary controls
on centennial- to decadal-scale changes in tropical rainfall
and monsoon intensity during this time are variations in solar
radiation.
STUDY NOTES: High-resolution stalagmite oxygen isotope data for 9-6 KYrBP
from Hoti Cave, Oman. Hoti cave is located in northern Oman,
on the southwestern side of the Oman mountains. The modern
climate of the area is arid to semi-arid, and the area is
not at present affected by the Indian Ocean monsoon system.
Stalagmite H5 from Hoti cave is dated with 12 Th-U ages,
and the d18O record covers 9.6 to 6.1 kyr before present.
The Hoti cave d18O record provides a high-resolution time
series of the intensity of Indian Ocean monsoonal rainfall.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/oman/hoti2001.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/syntrace/speleothem/cave-hoti-h5.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/oman/hoti2001.txt
USA/NOAA
DIF
Version 9.8.4
2019-06-18
2019-06-18