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Results of the Dendrochronological Studies in Mongolia

Gordon C. Jacoby* and Nachin Baatarbileg**

Abstract

The Mongolian-AmericanTree-Ring Project was initiated in 1995 to develop longer climatic records in Mongolia and to help establish capabilities in Mongolia for independent tree-ring analyses. The records from old-aged trees can provide more complete information about the variations in the climate system and aid in planning for future changes or variations in climate. Many areas of Mongolia have been investigated and tree-ring samples collected. Dendroclimatic records of temperature extending back more than one thousand years and precipitation records of over 300 years have been developed. These records show that global warming is present in Mongolia and that variations in precipitation and stream-flow appear to show some solar influence. Scientists and students trained by ,the project are now engaged in tree-ring studies in various areas of Mongolia. The project is expected to continue for the next several years.

Acknowledgement

*Lament-Doherty Earth Observatory, Columbia Universig< 61 Route 9K Palisades, New York 10964, USA **Department ofForestry, F a c u l ~of Biology, National University of Mongolia, Ulaanbaatar 210646, M