A potential of multi-proxy approach for studying Thailand summer monsoon rainfall based on tree rings and stalagmite from northwestern Thailand

Chotika Muangsong, Innovation for Social and Environmental Management, Mahidol University, Amnaj Charoen campus, Amnaj Charoen, Thailand, Binggui Cai, Fujian Normal University, College of Geography Science, Fuzhou, China and Nathsuda Pumijumnong, Faculty of Environment and Resource Studies, Mahidol University, Nakhon Pathom, Thailand