Shijiazhuang City Faces Decreasing Pan Evaporation Trend Due to Climate Change.
The study analyzed pan evaporation changes in Shijiazhuang city over 37 years. Results show a decrease in annual pan evaporation, especially in spring, summer, and autumn. Pan evaporation is linked to sunshine duration, temperature range, wind speed, and humidity. The main reasons for the decrease are reduced sunshine duration and temperature range, followed by lower wind speed and land surface temperature.