noaa-recon-9956
Southern South America Multiproxy 500 Year Precipitation Reconstructions
Neukom, R.; Luterbacher, J.; Villalba, R.; Küttel, M.; Frank, D.C.; Jones, P.D.; Grosjean, M.; Esper, J.; Lopez, L.; Wanner, H.
Southern South America Multiproxy 500 Year Precipitation Reconstructions
2010-08-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/9956
Investigator
R.
Neukom
Investigator
J.
Luterbacher
Investigator
R.
Villalba
Investigator
M.
Küttel
Investigator
D.C.
Frank
Investigator
P.D.
Jones
Investigator
M.
Grosjean
Investigator
J.
Esper
Investigator
L.
Lopez
Investigator
H.
Wanner
earth science
paleoclimate
climate reconstructions
precipitation,multiple proxies,null,millimeter,Dec-Feb,climate reconstructions,anomalized,null,N,anomalies wrt 1931-1995 [mm]
earth science
paleoclimate
climate reconstructions
precipitation,multiple proxies,null,millimeter,Jun-Aug,climate reconstructions,anomalized,null,N,null
earth science
paleoclimate
climate reconstructions
age,null,null,year Common Era,null,climate reconstructions,null,null,N,null
earth science
paleoclimate
reconstructions
precipitation
geoscientificInformation
PAGES 2k Network
PAGES LOTRED SA2k
Precipitation Reconstruction
1498 AD
1995 AD
452 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, J. Esper, L. Lopez, and H. Wanner. 2010.
Multi-centennial summer and winter precipitation variability
in southern South America.
Geophys. Res. Lett., 37, L14708, doi:10.1029/2010GL043680.
We present the first spatially and temporally highly resolved gridded
reconstruction of multi-centennial precipitation variability for
southern South America (SSA). A novel reconstruction approach of
deriving 10,000 ensemble members based on varying predictor networks
and methodological settings allows the identification of spatiotemporal
changes in SSA precipitation and associated uncertainties. The summer
and winter reconstructions back to AD 1498 and AD 1590, respectively,
provide new evidence for multi-centennial increase in summer
precipitation and an opposing decrease in winter precipitation into
the 20th century. The drying in winter is significant over large parts
of SSA, whereas the patterns for summer, possibly representing convective
rainfall, have displayed high spatial variability. The fact that such
long-term seasonal and spatial changes have occurred in the past,
underlines the complex form that hydroclimatic variability might have
in the future. This emphasizes the need for careful adaptation strategies
as governments become attuned to the realities of climate change.
STUDY NOTES: This dataset contains the austral summer (DJF) and winter (JJA)
precipitation reconstructions for southern South America (SSA)
as presented in Neukom et al. 2010. The data are medians of an
ensemble of 10,000 reconstructions derived using PCR reconstruction
technique (details see paper) and cover the following periods:
Summer: 1498-1995
Winter: 1590-1995
The predictor network consists of 33 (31) proxy records and 41 (42)
instrumental series for summer (winter).
The spatially explicit reconstructions are provided in 0.5°x0.5°
resolution and in NetCDF and text format:
Summer:
SSA_PP_Recon_DJF_anom_1498-1995.nc
SSA_PP_Recon_DJF_anom_1498-1995.txt
Winter:
SSA_PP_Recon_JJA_anom_1590-1995.nc
SSA_PP_Recon_JJA_anom_1590-1995.txt
The text file contain the following columns:
Year, Precipitation anomalies wrt 1931-1995 [mm] of grid-cell 1,
precipitation anomalies of grid-cell 2, ... ,
precipitation 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.
Some of the land gridcells have also missing values (mainly in the
Atacama region), because the std. dev. at these locations is <0.1
in the instrumental calibration grid and the corresponding grid cells
were not included into the reconstructions.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/neukom2010b/neukom2010b.zip
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/neukom2010b/readme-neukom2010b.txt
USA/NOAA
DIF
Version 9.8.4
2019-03-07
2019-03-07