noaa-cave-22990
Western Australia 40,000 Year Stalagmite Stable Isotope Data
Denniston, R.F.; Asmerom, Y.; Polyak, V.J.; Wanamaker, A.D.; Ummenhofer, C.C.; Humphreys, W.F.; Cugley, J.; Woods, D.; Lucker, S.
Western Australia 40,000 Year Stalagmite Stable Isotope Data
2017-11-02
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/22990
Investigator
R.F.
Denniston
Investigator
Y.
Asmerom
Investigator
V.J.
Polyak
Investigator
A.D.
Wanamaker
Investigator
C.C.
Ummenhofer
Investigator
W.F.
Humphreys
Investigator
J.
Cugley
Investigator
D.
Woods
Investigator
S.
Lucker
earth science
paleoclimate
speleothems
age,null,null,calendar year before present,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,distance from base
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
sample identification,null,null,null,null,speleothems,null,null,C,stalagmite name
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
oxygen isotopes
geoscientificInformation
39971 cal yr BP
304 cal yr BP
Complete
-17.333333
-15.18
124.083333
128.37
100
100
Continent
Australia/New Zealand
Australia
Western Australia
Cave KNI-51>LATITUDE -15.18>LONGITUDE 128.37
Continent
Australia/New Zealand
Australia
Western Australia
Ball Gown Cave>LATITUDE -17.333333>LONGITUDE 124.083333
None
Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
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
R.F. Denniston, Y. Asmerom, V.J. Polyak, A.D. Wanamaker Jr., C.C. Ummenhofer, W.F. Humphreys, J. Cugley, D. Woods, S. Lucker
2017
Decoupling of monsoon activity across the northern and southern Indo-Pacific during the Late Glacial
Quaternary Science Reviews
176
101-105
10.1016/j.quascirev.2017.09.014
https://www.sciencedirect.com/science/article/pii/S0277379117305681
Recent studies of stalagmites from the Southern Hemisphere tropics of Indonesia reveal two shifts in monsoon activity not apparent in records from the Northern Hemisphere sectors of the Austral-Asian monsoon system: an interval of enhanced rainfall at ~19 ka, immediately prior to Heinrich Stadial 1, and a sharp increase in precipitation at ~9 ka. Determining whether these events are site-specific or regional is important for understanding the full range of sensitivities of the Austral-Asian monsoon. We present a discontinuous 40 kyr carbon isotope record of stalagmites from two caves in the Kimberley region of the north-central Australian tropics. Heinrich stadials are represented by pronounced negative carbon isotopic anomalies, indicative of enhanced rainfall associated with a southward shift of the intertropical convergence zone and consistent with hydroclimatic changes observed across Asia and the Indo-Pacific. Between 20 and 8 ka, however, the Kimberley stalagmites, like the Indonesian record, reveal decoupling of monsoon behavior from Southeast Asia, including the early deglacial wet period (which we term the Late Glacial Pluvial) and the abrupt strengthening of early Holocene monsoon rainfall.
STUDY NOTES: Stable isotope (d18O and d13C) data from stalagmites collected in 2 caves (Ball Gown Cave and Cave KNI-51) in tropical Western Australia for the past 40,000 years. Kimberley composite stalagmite record utilized in Denniston et al. 2017 Late Glacial through Holocene paleomonsoon reconstruction.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/australia/ballgown2017iso.txt
Formatted Text Data File; Ball Gown Cave Stable Isotope Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/australia/kni-51-2017iso.txt
Formatted Text Data File; Cave KNI-51 Stable Isotope Data
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11