noaa-other-9894 VS-Lite Model of Tree-Ring Width Tolwinski-Ward, S.E.; Evans, M.N.; Hughes, M.K.; Anchukaitis, K.J. VS-Lite Model of Tree-Ring Width 2010-11-23 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/9894 Investigator S.E. Tolwinski-Ward Investigator M.N. Evans Investigator M.K. Hughes Investigator K.J. Anchukaitis earth science paleoclimate others geoscientificInformation 2000 AD 2010 AD -50 cal yr BP -60 cal yr BP Complete 32.2216 32.2216 -110.9263 -110.9263 759 759 Continent North America United States Of America Arizona Tucson>LATITUDE 32.2216>LONGITUDE -110.9263 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

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Boulder CO 80305-3328 USA online ASCII Tolwinski-Ward, S.E., M.N. Evans, M.K. Hughes, and K.J. Anchukaitis. 2010. An efficient forward model of the climate controls on interannual variation in tree-ring width. Climate Dynamics, doi: 10.1007/s00382-010-0945-5

We present a simple, efficient, process-based forward model of tree-ring growth, called Vaganov-Shashkin-Lite (VS-Lite), that requires as inputs only latitude and monthly temperature and precipitation. Simulations of six bristlecone pine ring-width chronologies demonstrate the interpretability of model output as an accurate representation of the climatic controls on growth. Ensemble simulations by VS-Lite of two networks of North American ring-width chronologies correlate with observations at higher significance levels on average than simulations formed by regression of ring width on the principal components of the same monthly climate data. VS-Lite retains more skill outside of calibration intervals than does the principal components regression approach. It captures the dominant low- and high frequency spatiotemporal ring-width signals in the network with an inhomogeneous, multivariate relationship to climate. Because continuous meteorological data are most widely available at monthly temporal resolution, our model extends the set of sites at which forward-modeling studies are possible. STUDY NOTES: Vaganov-Shashkin-Lite Model of Tree-Ring Width. A simple, efficient, process-based forward model of tree-ring growth, requires as inputs only latitude and monthly temperature and precipitation.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/VSLite_correction_7_2011.pdf GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/estimate_vslite_params_v2_3.m GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/VSLite_v2_3.m GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/readme-vslite.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/test_vslite_v2_3.m GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/possible-erratum-email.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/vslite_testdata.mat GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/softlib/vs-lite/VSLite_v2_2_documentation.pdf USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11