نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران
2 استادیار، گروه مهندسی احیاءمناطق خشک و کوهستانی، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Drought is one of the natural hazards, especially in arid and semi-arid regions. Analyzing the conditions, characteristics, and status of drought as a type of natural hazard in different regions with a focus on gathering solutions to cope drought and manage its risks is of great importance. In the present study, the analysis and prediction of meteorological drought in Khuzestan province was investigated with individual Galerkin and MARS models and the combined Galerkin-MARS model during a 30-year statistical period (1990-2020). To assess drought conditions, the Standardized Precipitation Index (SPI) obtained from data from eight synoptic stations was used. In the next step, the modeling results were compared with the aforementioned models using goodness-of-fit indices. The results indicated that the combined Galerkin-MARS model is highly efficient for estimating SPI in Khuzestan province. Also, long-term SPI time windows had higher accuracy than short-term time windows in the study area. In general, it can be said that combining numerical models with machine learning in Khuzestan Province leads to increased accuracy in SPI modeling.
کلیدواژهها [English]