基于自动气象站的深圳近10 年城市气候变化特征研究： 2011--2020 年.

Based on the observation data of 30 automatic weather stations in Shenzhen, climate change trends in Shenzhen in the past 10 years are analyzed. The results are shown as follows. (1) The average air temperature grows by a rate of about 1.47 ℃/(10 a) in Shenzhen from 2011 to 2020, significantly higher than that in the previous decade, suggesting that climate warming has not eased yet. (2) Due to the effect of urbanization, daily temperature ranges show a decreasing trend over much of Shenzhen, while an abnormal upward trend is witnessed for a few limited areas. (3) Surface wind speeds in Shenzhen generally show a decreasing trend, which is even faster in developed areas. (4) Average relative humidity in Shenzhen shows an increasing trend from 2011 to 2020, with the maximum annual increase at 1.33%. (5) According to the statistics of extreme rainfall data at different spans of time in the districts of Shenzhen, the growth rates of extreme rainfall and annual total precipitation are large in undeveloped areas, with the highest growth rate at 42.41 mm/a, while the maximum value of moving precipitation with duration less than 6 hours shows a decreasing trend in other areas. (6) By using long-time series data of multiple automatic weather stations, a more detailed analysis can be done of the local climate change characteristics for Shenzhen, which is a useful supplement to analyses based on national basic stations data and helpful for deeper exploration of the relationship between urbanization and climate change. [ABSTRACT FROM AUTHOR]