noaa-recon-11194
1,100 Year El Niño/Southern Oscillation (ENSO) Index Reconstruction
Li, J.; Xie, S.-P.; Cook, E.R.; Huang, G.; D'Arrigo, R.D.; Liu, F.; Ma, J.; Zheng, X.-T.
1,100 Year El Niño/Southern Oscillation (ENSO) Index Reconstruction
2011-05-16
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11194
Investigator
J.
Li
Investigator
S.-P.
Xie
Investigator
E.R.
Cook
Investigator
G.
Huang
Investigator
R.D.
D'Arrigo
Investigator
F.
Liu
Investigator
J.
Ma
Investigator
X.-T.
Zheng
earth science
paleoclimate
climate reconstructions|tree ring
age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null
earth science
paleoclimate
climate reconstructions|tree ring
El Nino Southern Oscillation Index,null,null,dimensionless,null,climate reconstructions|tree ring,smoothed,principal component analysis,N,smooth: 21 year running biweight
earth science
paleoclimate
climate reconstructions|tree ring
El Nino Southern Oscillation Index,null,null,dimensionless,null,climate reconstructions|tree ring,filtered,principal component analysis,N,filter: 9 year Lanczos highpass
earth science
paleoclimate
reconstructions
sea surface temperature
geoscientificInformation
Atmospheric and Oceanic Circulation Patterns Reconstruction
ENSO
900 AD
2002 AD
1050 cal yr BP
-52 cal yr BP
Complete
-20
20
145
-80
Ocean
Pacific Ocean
Tropical Pacific>LATITUDE >LONGITUDE
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
Li, J., S.-P. Xie, E.R. Cook, G. Huang, R. D'Arrigo, F. Liu, J. Ma,
and X.-T. Zheng. 2011.
Interdecadal modulation of El Niño amplitude during the past millennium.
Nature Climate Change, Vol. 1, Issue 2, pp. 114-118, May 2011
doi:10.1038/nclimate1086
The El Niño/Southern Oscillation (ENSO) is the dominant mode
of interannual climate variability on Earth, alternating between
anomalously warm (El Niño) and cold (La Niña) conditions in
the tropical Pacific at intervals of 2-8 years. The amplitude
of ENSO variability affects the occurrence and predictability
of climate extremes around the world, but our ability to detect
and predict changes in ENSO amplitude is limited by the fact
that the instrumental record is too short to characterize its
natural variability. Here we use the North American Drought
Atlas - a database of drought reconstructions based on
tree-ring records - to produce a continuous, annually resolved
record of ENSO variability over the past 1,100 years. Our record
is in broad agreement with independent, ENSO-sensitive proxy
records in the Pacific and surrounding regions. Together, these
records indicate that ENSO amplitude exhibits a quasi-regular
cycle of 50-90 years that is closely coupled to the tropical
Pacific mean state. Anomalously warm conditions in the
eastern Pacific are associated with enhanced ENSO variability,
consistent with model simulations. The quasi-periodic ENSO
amplitude modulation reported here offers a key observational
constraint for improving models and their prediction of ENSO
behaviour linked to global warming.
STUDY NOTES: An index of canonical ENSO variability for the past 1,100 years,
derived from the first principal component of tree-ring based
North America Drought Atlas (NADA). This index comprises interannual
ENSO variability only, as a 9-year Lanczos highpass filter was applied
on time series at each NADA grid point. A 21-year running biweight
variance was calculated to measure changes in ENSO amplitude.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/enso-li2011.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/enso-li2011.xls
USA/NOAA
DIF
Version 9.8.4
2019-05-17
2019-05-17