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A 177 Years Extended Of Teak Chronology Revealing To The Climate Variability In Phrae Province, Northern Of Thailand, Kanokrat Buareal, Supaporn Buajan, Sineenart Preechamart, Chotika Muangsong, Nathsuda Pumijumnong

Applied Environmental Research

Teak ring-width is one of the promising paleoclimate proxies in the tropical region. Tree-ring chronology spanning from 1840 to 2016 (177 years) was derived from 76trees from Phrae Province, northern Thailand. A total of 141 core samples were cross-dated, a standardized master was constructed, and the tree residual master chronology was developed by ARSTAN program. The tree-ring chronology has a significant positivecorrelation with the monthly rainfall and relative humidity during the monsoon season (May - June). In addition, the growth of tree-ring width also significantly inversely correlated with Niño 3, Niño 3.4, and Niño 4 indices during the second half …