noaa-cave-8639
Berkelhammer et al. 2010 Dandak Cave, India Oxygen Isotope Data
Berkelhammer, M.B.; Sinha, A.; Mudelsee, M.; Cheng, H.; Edwards, R.L.; Cannariato, K.G.
Berkelhammer et al. 2010 Dandak Cave, India Oxygen Isotope Data
2010-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/8639
Investigator
M.B.
Berkelhammer
Investigator
A.
Sinha
Investigator
M.
Mudelsee
Investigator
H.
Cheng
Investigator
R.L.
Edwards
Investigator
K.G.
Cannariato
earth science
paleoclimate
speleothems
age,null,90% confidence interval margin of error,year,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
age,null,null,year Common Era,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
geoscientificInformation
624 AD
1562 AD
1326 cal yr BP
388 cal yr BP
Complete
19
19
82
82
400
400
Continent
Asia
Southcentral Asia
India
Dandak Cave>LATITUDE 19>LONGITUDE 82
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
Berkelhammer, M., Sinha, A., Mudelsee, M., Cheng, H., Edwards, R.L., Cannariato, K.G. 2010. Persistent multidecadal power of the Indian Summer Monsoon. Earth and Planetary Science Letters, 290 (1-2), 166-172.
The instrumental record of Indian Summer Monsoon (ISM) precipitation displays two complete manifestations of an inferred multidecadal cycle. Hitherto, no precipitation-sensitive proxy record from the Indian subcontinent has had the necessary resolution and length to adequately assess whether this observed feature is an inherent aspect of the ISM system on longer timescales. Here we present compelling evidence forpersistence of this cycle using a millennial length (AD 600-1550) and sub-annually resolved speleothem oxygen isotope record (d18O) from Dandak Cave in east-central India. The record displays a high degree of correlation with a speleothem-based Asian monsoon reconstruction from Wanxiang Cave in north-central China on annual to decadal timescales showing the regional significance of these findings. The observed period in our monsoon reconstruction is similar to that associated with the Gleissberg solar cycle and multidecadal sea surface temperature variability in the north Atlantic (AMO), both of which are often cited as the prominent pacemakers of ISM variability on multidecadal timescales. We document transient coherence between ISM precipitation amount and solar variability that persists exclusively in the century prior to and during the Medieval Climate Anomaly (nominally, AD 950-1300). The non-stationary nature of the SFV-monsoon relationship presented here may be evidence of the time-varying influence of tropical ocean-atmospheredynamics on the solar-monsoon link; however, it is not possible to show with significance that this period of coherence is anything more than an artifact of two timeseries with similar spectra. We therefore, are inclined to interpret our record as evidence of a minimal role of solar variability in driving persistent multidecadal variability of the ISM. Multidecadal SST variability in the North Atlantic remains as the likely alternative driver for persistence of this cycle. Regardless of the causative mechanism(s), the amplitude and regional signature of the observed cycle in ISM precipitation highlight its societal importance with respect to forecasting ISM precipitation on multidecadal timescales.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/dandak2010.txt
USA/NOAA
DIF
Version 9.8.4
2019-06-18
2019-06-18