[Objectivel The aim was to study climate change trend in Cangzhou City in recent 38 years. [ Method] Based on the climate date such as temperature, precipitation, sunshine, temperature, relative humidity, pressure, th...[Objectivel The aim was to study climate change trend in Cangzhou City in recent 38 years. [ Method] Based on the climate date such as temperature, precipitation, sunshine, temperature, relative humidity, pressure, the climate change trend in Cangzhou in recent 38 years was studied by statistical analysis methods like trend image and climate tendency rate. [ Result] The annual mean temperature, annual mean maximum and minimum temperature in Cangzhou in recent 38 years were increasing and the minimum temperature rose most quickly. The annual mean pre- cipitation decreased at a rate of 45.804 mm/10 a. The annual mean sunshine hours reduced at a rate of 104.2 h/10 a. The annual mean cloud amount reduced at a rate of 0.355%/10 a. The temperature rose at 0, 10, 15 and 20 cm, but the temperature decreased at 5 cm. Annual mean rel- ative humidity decreased. Annual mean air pressure, mean maximum and minimum air pressure reduced and the annual mean lowest air pressure reduced most distinctly. [ Conclusionl The study provided theoretical basis for the climate change in Cangzhou under global warming background.展开更多
文摘[Objectivel The aim was to study climate change trend in Cangzhou City in recent 38 years. [ Method] Based on the climate date such as temperature, precipitation, sunshine, temperature, relative humidity, pressure, the climate change trend in Cangzhou in recent 38 years was studied by statistical analysis methods like trend image and climate tendency rate. [ Result] The annual mean temperature, annual mean maximum and minimum temperature in Cangzhou in recent 38 years were increasing and the minimum temperature rose most quickly. The annual mean pre- cipitation decreased at a rate of 45.804 mm/10 a. The annual mean sunshine hours reduced at a rate of 104.2 h/10 a. The annual mean cloud amount reduced at a rate of 0.355%/10 a. The temperature rose at 0, 10, 15 and 20 cm, but the temperature decreased at 5 cm. Annual mean rel- ative humidity decreased. Annual mean air pressure, mean maximum and minimum air pressure reduced and the annual mean lowest air pressure reduced most distinctly. [ Conclusionl The study provided theoretical basis for the climate change in Cangzhou under global warming background.
