noaa-recon-10452
Southern South America Multiproxy 1100 Year Temperature Reconstructions
Neukom, R.; Luterbacher, J.; Villalba, R.; Küttel, M.; Frank, D.C.; Jones, P.D.; Grosjean, M.; Wanner, H.; Aravena, J.C.; Black, D.E.; Christie, D.A.; D'Arrigo, R.D.; Lara, A.; Morales, M.; Soliz-Gamboa, C.; Srur, A.M.; Urrutia, R.; von Gunten, L.
Southern South America Multiproxy 1100 Year Temperature Reconstructions
2010-03-31
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/10452
Investigator
R.
Neukom
Investigator
J.
Luterbacher
Investigator
R.
Villalba
Investigator
M.
Küttel
Investigator
D.C.
Frank
Investigator
P.D.
Jones
Investigator
M.
Grosjean
Investigator
H.
Wanner
Investigator
J.C.
Aravena
Investigator
D.E.
Black
Investigator
D.A.
Christie
Investigator
R.D.
D'Arrigo
Investigator
A.
Lara
Investigator
M.
Morales
Investigator
C.
Soliz-Gamboa
Investigator
A.M.
Srur
Investigator
R.
Urrutia
Investigator
L.
von Gunten
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,two standard error upper bound,degree Celsius,Jun-Aug,climate reconstructions,anomalized,null,N,anomalies wrt 1901-1995 [°C]
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,null,degree Celsius,Dec-Feb,climate reconstructions,anomalized,null,N,anomalies wrt 1901-1995 [°C]
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,two standard error lower bound,degree Celsius,Dec-Feb,climate reconstructions,anomalized,null,N,anomalies wrt 1901-1995 [°C]
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,null,degree Celsius,Jun-Aug,climate reconstructions,anomalized,null,N,anomalies wrt 1901-1995 [°C]
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,null,degree Celsius,Dec-Feb,climate reconstructions,anomalized,null,N,anomalies wrt 1931-1995 [°C]
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,Jun-Aug,climate reconstructions,anomalized,null,N,anomalies wrt 1931-1995 [°C]
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,two standard error upper bound,degree Celsius,Dec-Feb,climate reconstructions,anomalized,null,N,anomalies wrt 1901-1995 [°C]
earth science
paleoclimate
climate reconstructions
surface temperature,multiple proxies,two standard error lower bound,degree Celsius,Jun-Aug,climate reconstructions,anomalized,null,N,anomalies wrt 1901-1995 [°C]
earth science
paleoclimate
reconstructions
air temperature
geoscientificInformation
Air Temperature Reconstruction
Medieval Warm Period
PAGES 2k Network
PAGES LOTRED SA2k
900 AD
1995 AD
1050 cal yr BP
-45 cal yr BP
Complete
-64.75
-19.75
-80.25
-30.25
Continent
South America
Southern South America>LATITUDE -42.25>LONGITUDE -55.25
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
Neukom, R., J. Luterbacher, R. Villalba, M. Küttel, D. Frank,
P.D. Jones, M. Grosjean, H. Wanner, J.-C. Aravena, D.E. Black,
D.A. Christie, R. D'Arrigo, A. Lara, M. Morales, C. Soliz-Gamboa,
A. Srur, R. Urrutia, and L. von Gunten. 2010.
Multiproxy summer and winter surface air temperature field
reconstructions for southern South America covering the past centuries.
Climate Dynamics, Online First March 28, 2010,
DOI: 10.1007/s00382-010-0793-3
We statistically reconstruct austral summer (winter) surface air
temperature fields back to ad 900 (1706) using 22 (20) annually
resolved predictors from natural and human archives from southern
South America (SSA). This represents the first regional-scale
climate field reconstruction for parts of the Southern Hemisphere
at this high temporal resolution. We apply three different
reconstruction techniques: multivariate principal component
regression, composite plus scaling, and regularized expectation
maximization. There is generally good agreement between the results
of the three methods on interannual and decadal timescales.
The field reconstructions allow us to describe differences
and similarities in the temperature evolution of different
sub-regions of SSA. The reconstructed SSA mean summer temperatures
between 900 and 1350 are mostly above the 1901–1995 climatology.
After 1350, we reconstruct a sharp transition to colder conditions,
which last until approximately 1700. The summers in the eighteenth
century are relatively warm with a subsequent cold relapse peaking
around 1850. In the twentieth century, summer temperatures reach
conditions similar to earlier warm periods. The winter temperatures
in the eighteenth and nineteenth centuries were mostly below the
twentieth century average. The uncertainties of our reconstructions
are generally largest in the eastern lowlands of SSA, where the
coverage with proxy data is poorest. Verifications with independent
summer temperature proxies and instrumental measurements suggest
that the interannual and multi-decadal variations of SSA temperatures
are well captured by our reconstructions. This new dataset can be
used for data/model comparison and data assimilation as well as
for detection and attribution studies at sub-continental scales.
STUDY NOTES: This dataset contains the austral summer (DJF) and winter (JJA)
surface temmperature reconstructions for southern South America (SSA)
as presented in Neukom et al. 2010. The data are based on the
PCR reconstruction (details see paper) and cover the following periods:
Summer: 900-1995
Winter: 1706-1995
We provide the spatial mean as well as spatially explicit datasets.
Files for the SSA Means:
Summer: SSA-Mean_Rekon_DJF_900-1995.txt
Winter: SSA-Mean_Recon_JJA_1706-1995.txt
The Files contain the following columns:
Years, SSA-Mean temperature anomalies wrt 1901-1995 [°C],
2SE uncertainties lower bound [°C], 2SE uncertainties upper bound [°C]
The spatial reconstructions are provided in 0.5°x0.5° resolution
and in NetCDF and text format:
Summer: SSA_Rekon_DJF_900-1995.nc and SSA_Rekon_DJF_900-1995.txt
Winter: SSA_Rekon_JJA_1706-1995.nc and SSA_Rekon_JJA_1706-1995.txt
The text file contain the following columns:
Year, Temperature anomalies wrt 1931-1995 [°C] of grid-cell 1,
Temperature anomalies of grid-cell 2, ... , Temperature anomalies
of grid-cell 9191
The grid cells are structured as follows:
There are 9191 cells representing 101 longitudes (80.25°W to 30.25°W)
and 91 latitudes (64.75°S to 19.75°S)
Cell 1 represents the southwestern corner of the area (80.25°W,64.75°S)
Cell 2 represents the next cell eastward of cell 1 (79.75°W,64.75°S)
...
Cell 101 represent the southeastern corner of the area (30.25°W,64.75°S)
Cell 102 represents the coordinates (80.25°W,64.25°S)
...
Cell 9191 represents the northeastern corner of the area (30.25°W,19.75°S)
Only the land-gridcells (2358 cells) contain data, all other cells have
"NA" values.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/neukom2010/neukom2010.zip
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/neukom2010/readme-neukom2010.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11