A projection of meteorological variables under climate change : a case of Chiang Rai, Nong Khai and Songkhla, Thailand | |
| Author | Amaratunga, Mukadange Yasasna Vinushi |
| Call Number | AIT Caps. Proj. no.CIE-17-28 |
| Subject(s) | Climatic changes--Thailand--Chiang Rai Meteorology--Thailand--Chiang Rai |
| Note | A capstone project report submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Engineering Civil and Infrastructure Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Caps. Proj. ; no. CIE-17-28 |
| Abstract | This study focuses on how climate will change for three representative locations in Thailand: namely Chiang Rai, Nong Khai and Songkhla. Three GCMs MIROC5, IPSL-CM5A and Nor-ESM-m were used for the projection of future climate variables. Maximum temperature, minimum temperature, precipitation, solar radiation and evaporation were the five variables used in this study. Linear scaling was used for the bias correction of the climate variables. The study used daily data for the baseline period of 1975-2004. The projections of climate variables were done under two RCPs, RCP4.5 and RCP 8.5 for three time periods 2010-2039 (2020s), 2040-2069 (2050s) and 2070-2099 (2080s). Observed solar radiation and future data for evaporation were estimated using the Hargreaves and Samani equation. The trend analysis of observed historical data was performed using the Mann Kendall test and Sens slope method. The trend analysis of observed historical data indicated an increasing trend in maximum and minimum temperature while a decreasing trend was observed for evaporation. The annual average maximum temperature, minimum temperature and annual rainfall for all three representative locations will increase and annual rainfall shows a higher increase under RCP 4.5 than RCP 8.5 in the future. Evaporation is expected to increase by 3.5-4.6%, 4.3-5.0% and 2.8-4.2% for Chiang rai, Nong Khai and Songkhla respectively. A definite conclusion on change in future solar radiation cannot be drawn since the percentage changes are small for all three stations. |
| Year | 2017 |
| Corresponding Series Added Entry | Asian Institute of Technology. Caps. Proj. ; no. CIE-17-28 |
| Type | Capstone Project |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Civil and Infrastructure Engineering (CIE) |
| Chairperson(s) | Babel, Mukand Singh; |
| Examination Committee(s) | Shrestha, Sangam; |
| Degree | Capstone Project (B.Sc.)-Asian Institute of Technology, 2017 |