noaa-recon-14171
China 1000 Year Multiproxy Temperature Reconstructions
Shi, F.; Yang, B.; von Gunten, L.
China 1000 Year Multiproxy Temperature Reconstructions
2013-03-28
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/14171
Investigator
F.
Shi
Investigator
B.
Yang
Investigator
L.
von Gunten
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,unspecified error lower bound,degree Celsius,annual,climate reconstructions,anomalized,regression analysis,N,anomalized from 1961-1990 A.D.; calibration data set: CRUTEM3v; regularized errors-in-variables
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,unspecified error upper bound,degree Celsius,annual,climate reconstructions,anomalized,regression analysis,N,anomalized from 1961-1990 A.D.; calibration data set: CRUTEM3v; regularized errors-in-variables
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,null,degree Celsius,annual,climate reconstructions,anomalized,composite plus scale,N,anomalized from 1961-1990 A.D.; calibration data set: CRUTEM3v
earth science
paleoclimate
climate reconstructions
age,null,null,year Common Era,null,climate reconstructions,null,null,N,null
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,null,degree Celsius,annual,climate reconstructions,anomalized,regression analysis,N,anomalized from 1961-1990 A.D.; calibration data set: CRUTEM3v; regularized errors-in-variables
earth science
paleoclimate
reconstructions
air temperature
geoscientificInformation
Air Temperature Reconstruction
temperature
1000 AD
1996 AD
950 cal yr BP
-46 cal yr BP
Complete
25
45
70
125
Continent
Asia
Eastern Asia
China
China>LATITUDE >LONGITUDE
Continent
Asia
Eastern Asia
China
Eastern China>LATITUDE >LONGITUDE
Continent
Asia
Eastern Asia
China
Western China>LATITUDE >LONGITUDE
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
SHI Feng, YANG Bao, and Lucien Von GUNTEN. 2012.
Preliminary multiproxy surface air temperature field reconstruction for China over the past millennium.
Science China Earth Sciences, Vol. 55, Issue 12, pp. 2058-2067.
DOI: 10.1007/s11430-012-4374-7
We present the first millennial-length gridded field reconstruction of annual temperature for China, and analyze the reconstruction for spatiotemporal changes and associated uncertainties, based on a network of 415 well-distributed and accurately dated climatic proxy series. The new reconstruction method is a modified form of the point-by-point regression (PPR) approach. The main difference is the incorporation of the "composite plus scale" (CPS) and "Regularized errors-in-variables" (EIV) algorithms to allow for the assimilation of various types of the proxy data. Furthermore, the search radius is restricted to a grid size; this restriction helps effectively exclude proxy data possibly correlated with temperature but belonging to a different climate region. The results indicate that: 1) the past temperature record in China is spatially heterogenic, with variable correlations between cells in time; 2) the late 20th century warming in China probably exceeds mean temperature levels at any period of the past 1000 years, but the temperature anomalies of some grids in eastern China during the Medieval climate anomaly period are warmer than during the modern warming; 3) the climatic variability in the eastern and western regions of China was not synchronous during much of the last millennium, probably due to the influence of the Tibetan Plateau. Our temperature reconstruction may serve as a reference to test simulation results over the past millennium, and help to finely analyze the spatial characteristics and the driving mechanism of the past temperature variability. However, the lower reconstruction skill scores for some grid points underline that the present set of available proxy data series is not yet sufficient to accurately reconstruct the heterogeneous climate of China in all regions, and that there is the need for more highly resolved temperature proxies, particularly in the Tibetan Plateau.
STUDY NOTES: Surface temperature reconstructions for China, by both composite plus scale (CPS)
and Regularized errors-in-variables (EIV) methods. The reconstruction method is a modified form of
the point-by-point regression (PPR) approach, using a small search radius restricted to only one 5x5
degree grid square. Data are reported as temperature anomalies with respect to AD 1961-1990, in degrees C.
Eastern and Western China region EIV reconstructions (divided along 105E Longitude) are also presented.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/shi2012b/shi2012china-west.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/shi2012b/shi2012china.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/shi2012b/shi2012china-east.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11