آشکارسازی تغییرات اقلیمی با تحلیل آزمون گرافیکی من_کندال در استان کردستان

The changes of climatic elements in Kurdistan province during the period of 2019-2050 on a monthly, seasonal and annual scale was studied. The statistics of average temperature, minimum temperature, maximum temperature and average precipitation of this province including Baharestan, Bane, Bijar, Qamlo, Qarveh, Marivan, Sanandaj, Saqez and Zarineh stations have been processed. The data of all 12 were collected in different areas of the province, then the data were qualitatively checked and the necessary interpolation was done for the missing data with conventional methods. and finally, only 7 stations were selected for the next steps, which had more than 20 years of statistics. After that, the trend of the data was checked by the Man-Kendall graphic-statistical test and random changes were identified and the time type of the changes was checked. The results showed that Kurdistan Province is facing an increase in temperature and dryness, in total, on an annual and monthly scale, upward trends were observed in all stations, and 60% of the trends were statistically significant. For the amount of precipitation in the province, a significant decrease was observed in some months in some stations, and in the Sanandaj station, which has a longer statistical period, it also shows a decrease in rainfall throughout the year. For other temperature parameters, monthly and annual temperature increase was found to be significant in most of the stations. Saqez station was the only station where the trend of temperature changes was apparently decreasing.