{"NOAAStudyId":"9956","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2010-08-01","dataPublisher":"NOAA","dataType":"CLIMATE RECONSTRUCTIONS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-reconstruction","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-9956.xml","doi":null,"earliestYearBP":452,"earliestYearCE":1498,"entryId":"noaa-recon-9956","funding":[{"fundingAgency":"European Union","fundingGrant":"FP6 CIRCE, FP7 ACQWA"},{"fundingAgency":"Deutsche Forschungsgemeinschaft","fundingGrant":"PRIME INTERDYNAMIK"},{"fundingAgency":"Swiss National Science Foundation","fundingGrant":null}],"investigators":"Neukom, R.; Luterbacher, J.; Villalba, R.; Küttel, M.; Frank, D.C.; Jones, P.D.; Grosjean, M.; Esper, J.; Lopez, L.; Wanner, H.","mostRecentYearBP":-45,"mostRecentYearCE":1995,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/9956","originalSource":null,"publication":[{"abstract":"We present the first spatially and temporally highly resolved gridded \nreconstruction of multi-centennial precipitation variability for \nsouthern South America (SSA).  A novel reconstruction approach of \nderiving 10,000 ensemble members based on varying predictor networks \nand methodological settings allows the identification of spatiotemporal \nchanges in SSA precipitation and associated uncertainties. The summer \nand winter reconstructions back to AD 1498 and AD 1590, respectively, \nprovide new evidence for multi-centennial increase in summer \nprecipitation and an opposing decrease in winter precipitation into \nthe 20th century. The drying in winter is significant over large parts \nof SSA, whereas the patterns for summer, possibly representing convective \nrainfall, have displayed high spatial variability. The fact that such \nlong-term seasonal and spatial changes have occurred in the past, \nunderlines the complex form that hydroclimatic variability might have \nin the future. This emphasizes the need for careful adaptation strategies \nas governments become attuned to the realities of climate change. \n\n","author":null,"citation":"Neukom, R., J. Luterbacher, R. Villalba, M. Küttel, D. Frank, \nP.D. Jones, M. Grosjean, J. Esper, L. Lopez, and H. Wanner. 2010. \nMulti-centennial summer and winter precipitation variability \nin southern South America. \nGeophys. Res. Lett., 37, L14708, doi:10.1029/2010GL043680. ","edition":null,"identifier":{"id":"10.1029/2010GL043680","type":"doi","url":"http://dx.doi.org/10.1029/2010GL043680"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2010,"reportNumber":null,"title":"Multi-centennial summer and winter precipitation variability  in southern South America","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Precipitation Reconstruction","PAGES 2k Network","PAGES LOTRED SA2k"],"site":[{"NOAASiteId":"37099","geo":{"geoType":"Feature","geometry":{"coordinates":["-64.75","-19.75","-80.25","-30.25"],"type":"POLYGON"},"properties":{"easternmostLongitude":"-30.25","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-19.75","southernmostLatitude":"-64.75","westernmostLongitude":"-80.25"}},"locationName":"Continent>South America","mappable":"N","paleoData":[{"NOAADataTableId":"38720","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>reconstructions>precipitation"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/neukom2010b/readme-neukom2010b.txt","linkText":"readme-neukom2010b.txt","urlDescription":"Readme","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>reconstructions>precipitation"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/neukom2010b/neukom2010b.zip","linkText":"neukom2010b.zip","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"Neukom2010b","dataTableNotes":null,"earliestYear":1498,"earliestYearBP":452,"earliestYearCE":1498,"mostRecentYear":1995,"mostRecentYearBP":-45,"mostRecentYearCE":1995,"species":[],"timeUnit":"AD"}],"siteName":"Southern South America"}],"studyCode":null,"studyName":"Southern South America Multiproxy 500 Year Precipitation Reconstructions","studyNotes":"This dataset contains the austral summer (DJF) and winter (JJA) \nprecipitation reconstructions for southern South America (SSA) \nas presented in Neukom et al. 2010.  The data are medians of an \nensemble of 10,000 reconstructions derived using PCR reconstruction \ntechnique (details see paper) and cover the following periods: \nSummer: 1498-1995\nWinter: 1590-1995\n\nThe predictor network consists of 33 (31) proxy records and 41 (42) \ninstrumental series for summer (winter).\n\nThe spatially explicit reconstructions are provided in 0.5°x0.5°\nresolution and in NetCDF and text format:\nSummer: \nSSA_PP_Recon_DJF_anom_1498-1995.nc \nSSA_PP_Recon_DJF_anom_1498-1995.txt \nWinter: \nSSA_PP_Recon_JJA_anom_1590-1995.nc \nSSA_PP_Recon_JJA_anom_1590-1995.txt \n\nThe text file contain the following columns: \nYear, Precipitation anomalies wrt 1931-1995 [mm] of grid-cell 1, \nprecipitation anomalies of grid-cell 2, ... , \nprecipitation anomalies of grid-cell 9191 \n\nThe grid cells are structured as follows: \nThere are 9191 cells representing 101 longitudes (80.25°W to 30.25°W) \nand 91 latitudes (64.75°S to 19.75°S) \n\nCell 1 represents the southwestern corner of the area (80.25°W,64.75°S) \nCell 2 represents the next cell eastward of cell 1 (79.75°W,64.75°S) \n...\nCell 101 represent the southeastern corner of the area (30.25°W,64.75°S) \nCell 102 represents the coordinates (80.25°W,64.25°S) \n...\nCell 9191 represents the northeastern corner of the area (30.25°W,19.75°S) \n\nOnly the land-gridcells (2358 cells) contain data, all other cells have \n\"NA\" values.\nSome of the land gridcells have also missing values (mainly in the \nAtacama region), because the std. dev. at these locations is <0.1 \nin the instrumental calibration grid and the corresponding grid cells \nwere not included into the reconstructions. \n\n","version":"1.0","xmlId":"8849"}