Kevalin Inlaung Department of Geography, Faculty of Social Sciences, Chiang Mai University, Chiang Mai Thailand
Chakrit Chotamonsak Department of Geography, Faculty of Social Sciences, Chiang Mai University, Chiang Mai Thailand
Vanisa Surapipith National Astronomical Research Institute of Thailand (Public Organization), Chiang Mai Thailand
Ronald Macatangay National Astronomical Research Institute of Thailand (Public Organization), Chiang Mai, Thailand