Effects of Truong Son Mountains foehn on the high temperatures in the northcentral region, Vietnam

Abstract

The north-central region of Vietnam is known for its high-temperature phenomena. One of the possible causations of high-temperature phenomena in this region is the foehn (also known as Laotian wind) blowing down from the Truong Son Mountains. In this study, the high-temperature phenomena that occurred in central Vietnam from June 1 to 5, 2017 were discussed to investigate the contribution of the fern to the high-temperature occurrence. The results show that the foehn raises the temperature around Vinh in north-central Vietnam by about 2-4°C. It was also found that the foehn warming was caused by a dynamical mechanism.