Changes of Four Seasons for Zhaoqing and Climatological Characteristics of the 24 Solar Terms
In order to do a good job in the 24 solar terms related meteorological services in Zhaoqing,the 30-year data of six national benchmark meteorological observation stations in the city were used to divide the four seasons based on the climate factors such as temperature and rainfall,and the characteristics of the 24 solar terms in Zhaoqing were analyzed.The results are shown as follows.For the 24 solar terms of Zhao-qing,the Beginning of Spring(1 st solar term)is the closest to the average spring onset time of the city and its average summer onset date is close to the Pure Brightness(5th solar term).Except for the area of Gaoyao,the average autumn onset date for the remaining parts of the city is close to the Frost's Decent(18th solar term),while Gaoyao's autumn begins near the Beginning of Winter(19th solar term).The average winter onset date in Zhaoqing is close to the Lesser Cold and Greater Cold(23rd and 24th solar terms,re-spectively).For the city,the hottest time of the year is in the Lesser Heat and Greater Heat(llth and 12th solar terms,respectively),and the coldest in the Lesser Cold and Greater Cold.The Grain Rain(6th solar term)is accompanied with the most temperature rise,while the Frost's Decent witnesses the most tempera-ture drop.The high temperature weather in Zhaoqing is concentrated between the Beginning of Summer(7th solar term)and the Autumn Equinox(16th solar term),and comes to an end in the Frost's Descent.After the Beginning of Spring,the rainfall in Zhaoqing gradually increases,drops a little during the Pure Bright-ness and peaks in the Grain in Beard(9th solar term)before declining in fluctuation afterwards,and the rainfall is the least in the Frost's Descent.For Zhaoqing,the first thunder day of the year is about one solar term earlier than the Waking of Insects(3rd solar term).For the Pure Brightness,the average number of rainfall days is 8.2 d,and the probability of rain is 53.8％.
climatology24 solar termsfour seasonsclimate characteristicmeteorological serviceZhaoqing
NETL
NSTL
万方数据
