@mastersthesis {532, title = {A New Computerized X-ray Densitometric System for Tree-Ring Analysis}, volume = {MS}, year = {1984}, school = {University of Arizona}, abstract = {

A new facility for X-ray densitometric analysis is in operation at the Laboratory of Tree-Ring Research. Tree-ring specimens are cute to a uniform thickness of 1.0 mm and contact radiographs are produced. The radiographs are scanned by a modified Joyce-Loebl optical microdesitometer interfaced with an Apple II microcomputer. The film optical densities are sampled at 0.02 mm increments and stored on magnetic disks. A battery of computer programs has been developed to edit and process these data, and to transform them into annual time series of various wood density characteristics for each specimen. Several of the programs employ interactive high-resolution graphics to enable the operator to ensure that the resulting series are accurate and complete. Data produced include maximum latewood density, minimum earlywood density, total ring width, average annual density, and integrated annual density. These parameters can be employed as paleoenvironmental indicators.

}, url = {http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=753909891\&sid=1\&Fmt=1\&clientId=43922\&RQT=309\&VName=PQD}, author = {McCord, Virgil Alexander Stuart} } @book {816, title = {Tree Ring Chronologies of the Southern Hemisphere 1. Argentina}, series = {Tree Ring Chronologies of the Southern Hemisphere}, year = {1979}, publisher = {Laboratory of Tree-Ring Research}, organization = {Laboratory of Tree-Ring Research}, address = {Tucson}, keywords = {argentina, chronology, date, dendrochronology, hemisphere, south america, southern, tree ring}, author = {LaMarche, V.C. and Holmes, R.L. and Dunwiddie, P.W. and Drew, L.G.} } @book {817, title = {Tree Ring Chronologies of the Southern Hemisphere 2. Chile}, series = {Tree Ring Chronologies of the Southern Hemisphere}, year = {1979}, keywords = {chile, chronology, date, dendrochronology, south america, southern hemisphere, tree ring}, author = {LaMarche, V.C. and Holmes, R.L. and Dunwiddie, P.W. and Drew, L.G.} } @book {819, title = {Tree Ring Chronologies of the Southern Hemisphere 3. New Zealand}, series = {Tree Ring Chronologies of the Southern Hemisphere}, year = {1979}, publisher = {The Tree Ring Laboratory}, organization = {The Tree Ring Laboratory}, address = {Tucson}, keywords = {chronologies, date, dendrochronology, new zealand, southern hemisphere}, author = {LaMarche, V.C. and Holmes, R.L. and Dunwiddie, P.W. and Drew, L.G.} } @book {823, title = {Tree Ring Chronologies of the Southern Hemisphere 5. South Africa}, series = {Tree Ring Chronologies of the Southern Hemisphere}, year = {1979}, publisher = {Laboratory of Tree Ring Research}, organization = {Laboratory of Tree Ring Research}, address = {Tucson}, keywords = {africa, chronology, date, dendrochronology, south africa, southern hemisphere, tree ring}, author = {LaMarche, V.C. and Holmes, R.L. and Dunwiddie, P.W. and Drew, L.G.} } @article {768, title = {Tree-ring evidence of past climatic variability}, journal = {Nature}, volume = {276}, year = {1978}, note = {

Copies of this are available through the Tree Ring Laboratory. Please contact the lab for more information.

}, keywords = {ancient, climate, environment, paleoclimatology, past, record, tree ring}, author = {LaMarche, V.C.} } @article {777, title = {Tree Rings, Glacial Advance, And Climate in The Alps}, journal = {Zeitschrift fur Gletscherkunde und Glazialgeologie}, volume = {VII}, year = {1971}, note = {

Copies of this are available through the Tree Ring Laboratory; please contact the lab for more information.

}, abstract = {

Ring-width variations in stone pine near upper treeline in the Alps show a high negative correlation with the percentage of advancing glaciers in Austria and Switzerland. The relationship is due to the similarity of climatic models for tree growth and the glacial mass budget. Tree-ring fluctuations during the period 1800-1889, prior to the compilation of glacial statistics show good agreement with historical glacial advances and periods of low summer temperatures, especially around 1820-1855. Tree-ring studies could assist in reconstructing the glacial and climatic history of the Alps, possibly for a period of 1,000 years or more.

}, keywords = {alps, austria, climatology, environment, glacial advance, glaciers, Switzerland, tree ring}, author = {LaMarche, V.C. and Fritts, H.} } @book {753, title = {Climate from Tree Rings}, note = {

Copies of this are available in the Tree Ring Laboratory. Please contact the curator for more information. pcreasman@ltrr.arizona.edu

}, publisher = {Cambridge University Press}, organization = {Cambridge University Press}, keywords = {climate, dendrochronology, paleoclimatology, tree rings}, author = {Hughes, M.K. and LaMarche, V.C. and Pilcher, J.R. and Kelly, P.M.} }