ANALYSIS OF CLIMATE CHANGE CHARACTERISTICS IN TUOTUO RIVER AREA DURING THE LAST 62 YEARS
Climate tendency rate and Mann-Kendall mutation test were used to analyze the temperature and precipitation data of Tuotuo River meteorological station during 1961-2022.The results showed that in the past 62 years,the annual,seasonal and monthly average temperature in Tuotuohe River area have all shown an upward trend,and the rate of increase in autumn is much higher than other seasons.There was no abrupt change in temperature in 62 years.The precipitation showed an upward trend,and there were 6 abrupt changes.The trend of seasonal precipitation variation was not obvious.The precipitation in June increased most obviously,and the precipitation in October showed a slight downward trend.June contributes the most precipitation,followed by May.
TemperaturePrecipitationChange characteristicsTuotuo River area