Study on the Changes of Extreme Temperature in the Southwest of Zhejiang Province during the Period of 1953-2022 ()
ABSTRACT
Under the background of global warming, extreme temperature occurs frequently around the globe, which has a significant and direct impact on
social and economic system. Liuchun Lake is an important ecotourism scenic
region in Longyou in the southwest of Zhejiang province, it is very important
for the local economic development. Based on
the daily mean temperature, maximum and minimum temperature from 15 stations, the 13
extreme temperature indices as defined by the Expert Team on Climate Change
Detection and Indices (ETCCDI) were calculated, and the characteristics of
extreme temperature in the southwest of Zhejiang province were analyzed. The
results showed that: 1) The Warmest day (TXx) and Warmest night (TNx) increased at most of
the stations, while the coldest day (TXn) and the coldest night (TNn) basically
significantly increased at all the stations; 2) The number of frost days (FD0)
showed decreased trend, and all the stations passed the 99% significant level,
the number of ice days (ID0) also was on downward trend, but it is not
significant at all most of the stations, however, both the number of summer
days (SU25) and tropical nights (TR20) were on upward trend, and all the
stations passed the significant level (p < 0.1); 3) Both the number of cold days (TX10P) and cold nights (TN10P)
showed a declined trend, while the number of warm days (TX90P) and warm night
(TN90P) had an upward trend, especially TN90P had significant increase at all
the stations. This implies that the cold events declined and warm events increased in the southwest regions of Zhejiang from 1953 to 2022.
Share and Cite:
Yang, W. , Shi, H. and Yuan, S. (2023) Study on the Changes of Extreme Temperature in the Southwest of Zhejiang Province during the Period of 1953-2022.
Journal of Geoscience and Environment Protection,
11, 129-140. doi:
10.4236/gep.2023.1111010.
Cited by
No relevant information.