Analysis of Trends in Drought with the Non-Parametric Approach in Vietnam: A Case Study in Ninh Thuan Province

A quantitative study was used in the of tendency to change drought indicators Vietnam through Ninh Thuan province case study. The research data are temperature and precipitation 11 stations from 1986 2016 inside outside province. To do research, author uses a non-parametric analysis method index calculation method. Specifically, with method, analysis, Mann-Kendall (MK) Theil-Sen (Sen’s slope), analyze drought, Standardized Precipitation Index (SPI) Moisture (MI). Two Softwares calculated this ProUCL 5.1 MAKENSEN 1.0 by US Environmental Protection Agency Finnish Meteorological Institute. results show that meteorological will decrease future areas such as Phan Rang, Song Pha, Quan The, Ba Thap tend increase very clearly, while Tam My Nhi Ha clearly short. With agricultural average MI increased 0.013 per year, which Pha station tended highest 0.03 year lower 0.001 year. forecast also end 21st century, SPI tends 1 being −0.68, 3 −0.40, 6 −0.25, 12 is 0.42. Along 2035, 0.93, 2050 it 1.13, 2075 be 1.46, 2100 1.79. Research policymaking, environmental resources management agencies, researchers develop solutions adapt mitigate context variable climate change.