TRENDS OF SOME HYDROMETEOROLOGY FACTORS IN DONGNAI PROVINCE

Abstract

Climate change has been taking place on a global scale and is a big challenge for humanity, manifested by temperature increase, precipitation change, and sea level rise, etc. By data collecting and processing, statistics, and trend analysis, etc. updating and assessing changes in temperature, precipitation, and water level for 3 recent decades in Dong Nai province were carried out. Results showed that the average temperature at monitoring stations (Bien Hoa, Xuan Loc, Tri An) tends to increase at a rate of about 0.01-0.04°C/year. Trends of precipitation are very different among monitoring stations: increase at Bien Hoa, Phu Hiep, Xuan Loc stations (8.6, 17.4, and 24.5 mm/year, respectively) but decrease at Tri An station (-4.5 mm/year). Besides, trends of maximum, average, and minimum water levels all increase (in the range of 0.15-1.4 cm/year among the stations). Trends of some hydrometeorology factors thereby partly show the effect of climate change in the investigated area.