noaa-recon-13673 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2019-05-17 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Southern Annular Mode (SAM) Index 600 Year Tree Ring Reconstruction 2013-01-07 publication noaa-recon-13673 NCEI DSI 1200_01 Villalba, R. originator Villalba, R. author Lara, A. originator Lara, A. author Masiokas, M. originator Masiokas, M. author Urrutia, R. originator Urrutia, R. author Luckman, B.H. originator Luckman, B.H. author Marshall, G.J. originator Marshall, G.J. author Mundo, I.A. originator Mundo, I.A. author Christie, D.A. originator Christie, D.A. author Cook, E.R. originator Cook, E.R. author Neukom, R. originator Neukom, R. author Allen, K.J. originator Allen, K.J. author Fenwick, P. originator Fenwick, P. author Boninsegna, J.A. originator Boninsegna, J.A. author Srur, A.M. originator Srur, A.M. author Morales, M. originator Morales, M. author Araneo, D. originator Araneo, D. author Palmer, J.G. originator Palmer, J.G. author Cuq, E. originator Cuq, E. author Aravena, J.C. originator Aravena, J.C. author Holz, A. originator Holz, A. author LeQuesne, C. originator LeQuesne, C. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Climate Reconstruction. The data include parameters of climate reconstructions|tree ring with a geographic location of Southern Hemisphere. The time period coverage is from 541 to -57 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past temperature, precipitation, and other climate variables derived from paleoclimate proxies. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations. completed Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-recon.png Paleoclimatology - Climate Reconstruction PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Paleoclimate Reconstructions theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > instrumental earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > instrumental earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > reconstructions > atmospheric circulation theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Atmospheric and Oceanic Circulation Patterns Reconstruction Southern Annular Mode (SAM) theme Geographic Region > Southern Hemisphere> Southern Annular Mode (SAM) > LATITUDE > LONGITUDE place otherRestrictions Cite as: Villalba, R.; Lara, A.; Masiokas, M.; Urrutia, R.; Luckman, B.H.; Marshall, G.J.; Mundo, I.A.; Christie, D.A.; Cook, E.R.; Neukom, R.; Allen, K.J.; Fenwick, P.; Boninsegna, J.A.; Srur, A.M.; Morales, M.; Araneo, D.; Palmer, J.G.; Cuq, E.; Aravena, J.C.; Holz, A.; LeQuesne, C. (2013-01-07): NOAA/WDS Paleoclimatology - Southern Annular Mode (SAM) Index 600 Year Tree Ring Reconstruction. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/13673. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions None otherRestrictions 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. eng; USA geoscientificInformation Date Range: 1409 AD to 2007 AD; Date Range: 541 cal yr BP to -57 cal yr BP; -180 180 -90 -20 1409 2007 STUDY NOTES: Southern Annular Mode (SAM) Index reconstruction for the past 600 years based on 3000 trees from 102 sites across South America, Tasmania and New Zealand. We identified regional tree growth patterns for the temperate forests in these three regions during the past 400-600 years. Using time-varying subsets of regional chronologies as predictors, we develop two reconstructions of mean summer (December-February) SAM variations for the period 1409-2006. Two instrumental target series were selected for analysis: the SAM-Marshall (based on selected station pressure records) and the SAM-NCEP (based on mean sea-level pressure south of 20S). The first principal component (PC1) of the three regional chronologies best correlated with the predictands explains 44 and 47% of the total variance of the SAM-Marshall and SAM-NCEP instrumental records, respectively. Data set updated 28 July 2014 with addition of underlying tree-ring chronolology and raw ring width data. Added files include a). villalba2012sam.xls, an Excel format file containing the SAM reconstruction and all tree-ring chronologies; b.) text data file villalba2012sam-crns.txt containing the 3 chronology predictor series; c.) 6 raw ring width tree ring data files used to develop the chronologies listed in SI_Table 2 (Regional tree-ring chronologies): villalba2012sam-araucaria.txt, villalba2012sam-austrocedrus.txt, villalba2012sam-halocarpus.txt, villalba2012sam-lagarostrobos.txt, villalba2012sam-nothofagus.txt, and villalba2012sam-phyllocadus.txt. These tree ring data make it possible to validate the SAM reconstructions starting from the regional chronologies (included on the Excel file) or from the raw data contained in the raw measurement files. This is all the data used to support the conclusions of the Nature Geoscience paper. Regional chronologies were developed by combining some of the individual chronologies listed in SI_Table 1 (Tree-ring chronologies). Those chronologies not included in the Regional chronologies can be obtained by contacting the producers listed in Source of SA_Table 1. Most of these chronologies are presently included in the International Tree-Ring Data Bank. ABSTRACT SUPPLIED BY ORIGINATOR: Recent changes in the summer climate of the Southern Hemisphere extra-tropics are primarily related to the dominance of the positive phase of the Southern Annular Mode. This shift in the behaviour of the Southern Annular Mode - essentially a measure of the pressure gradient between Southern Hemisphere mid and high latitudes - has been predominantly induced by polar stratospheric ozone depletion. The concomitant southward expansion of the dry subtropical belts could have consequences for forest growth. Here, we use tree-ring records from over 3,000 trees in South America, Tasmania and New Zealand to identify dominant patterns of tree growth in recent centuries. We show that the foremost patterns of growth between 1950 and 2000 differed significantly from those in the previous 250 years. Specifically, growth was higher than the long-term average in the subalpine forests of Tasmania and New Zealand, but lower in the dry-mesic forests of Patagonia. We further demonstrate that variations in the Southern Annular Mode can explain 12-48% of the tree growth anomalies in the latter half of the twentieth century. Tree-ring-based reconstructions of summer Southern Annular Mode indices suggest that the high frequency of the positive phase since the 1950s is unprecedented in the past 600 years. We propose that changes in the Southern Annular Mode have significantly altered tree growth patterns in the Southern Hemisphere. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-recon-13673 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/13673 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-reconstruction HTTPS Information NCEI Climate Reconstruction Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam-crns.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam-austrocedrus.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam-nothofagus.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam-lagarostrobos.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam-halocarpus.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam-araucaria.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam.xlsx HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/villalba2012sam-phyllocladus.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25