@article{426be35e475349b19dea9b2b0a554077,
title = "Climate variability over the past 100 years in Myanmar derived from tree-ring stable oxygen isotope variations in Teak",
abstract = "We present a 100-year oxygen isotope record from teak tree-ring cellulose (δ18O), originating from a site in southern Myanmar that preserves the isotopic ratios of the regional wet season{\textquoteright}s rainfall. Tree-ring δ18O correlates strongly with regional rainfall during the months of May to October (r = − 0.353, p < 0.01). We found the tree-ring δ18O had clear signals of the June to September Indian Summer Monsoon (ISM) over the years 1948–1998 (r = − 0.53, p < 0.01). The δ18O has a significant and negative correlation with the minimum temperature in September and has a significant positive correlation with maximum temperature in November and December. The study found that δ18O has a significant positive correlation with the difference between the maximum temperature and the minimum temperature (DTR) in August to October. Based on our results, it can be concluded that tree-ring δ18O in teak in southern Myanmar is controlled by the amount of rainfall during the monsoon season and the temperature in the November and December. Spatial correlation and spectral analyses revealed a strong impact of the El Ni{\~n}o-Southern Oscillation (ENSO) on tree-ring δ18O of teak. In addition, tree-ring δ18O also captures the signal of the Indian Ocean Dipole (IOD).",
keywords = "Climate variability, ENSO, Myanmar, Oxygen Isotopes, Teak",
author = "Nathsuda Pumijumnong and Chotika Muangsong and Supaporn Buajan and Masaki Sano and Takeshi Nakatsuka",
note = "Funding Information: This study was supported by the Thailand Science Research and Innovation (TSRI) grant nr. RDG5930014 and TSRI grant nr. RSA6280017. We also thank the anonymous referees for their valuable input and critical regarding for the manuscript. We express our thanks to Kuaw Tint, Director General, Forest Department, Mehm Ko Ko Gyi, former Coordinator of TEAKNET (Asia Pacific Region), Saw Eh Dah, Coordinator, Forest Department Yangon/Myanmar, for cooperation during the sampling expedition in March 1999. We also thank Mr. Tin Ko OO for making a clear map of the study area. Funding Information: This study was supported by the Thailand Science Research and Innovation (TSRI) grant nr. RDG5930014 and TSRI grant nr. RSA6280017. We also thank the anonymous referees for their valuable input and critical regarding for the manuscript. We express our thanks to Kuaw Tint, Director General, Forest Department, Mehm Ko Ko Gyi, former Coordinator of TEAKNET (Asia Pacific Region), Saw Eh Dah, Coordinator, Forest Department Yangon/Myanmar, for cooperation during the sampling expedition in March 1999. We also thank Mr. Tin Ko OO for making a clear map of the study area. Publisher Copyright: {\textcopyright} 2019, Springer-Verlag GmbH Austria, part of Springer Nature.",
year = "2020",
month = feb,
day = "1",
doi = "10.1007/s00704-019-03036-y",
language = "English",
volume = "139",
pages = "1401--1414",
journal = "Theoretical and Applied Climatology",
issn = "0177-798X",
publisher = "Springer Wien",
number = "3-4",
}
