نوع مقاله : مقاله کوتاه
نویسندگان
1 دانشجوی دکتری، گروه جغرافیا، دانشکده علوم انسانی، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران
2 دانشیار گروه جغرافیا، دانشکده علوم انسانی، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران
3 استادیار گروه جغرافیا، دانشکده علوم انسانی، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this study, in order to investigate the trend of precipitation changes in Khuzestan Province, the data used were daily, monthly and annual data of precipitation of selected synoptic stations for a statistical period of 30 years (1987-2016). To study the trend of precipitation changes, precipitation-related indices defined by the ETCCDMI expert group were estimated using RClimDex software. Then, the ascending and descending trend of changes in precipitation limit values was investigated using Mann-Kendall non-parametric test method. The age slope estimator method was also used to determine the rate of precipitation change. The results showed that all precipitation-related indicators (except for the number of days with more than 25 mm and very wet days) had significant changes at the level of 5%. In terms of stations, Dezful station with 26.41% had the highest rainfall and Shushtar station with 3.64% had the lowest rainfall. Behbahan station also had a 14.87% increase in rainfall.
کلیدواژهها [English]