Journal of Arid Meteorology ›› 2021, Vol. 39 ›› Issue (3): 386-393.

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Construction of Ground Temperature Series and Its Characteristics from 1905 to 2018 in Zhejiang Province

XIAO Jingjing1, MA Hao1, ZHANG Yuhui1, HE Zhonghua1, LI Na2, WEN Quanpei3, LI Zhengquan1


  1. 1. Zhejiang Provincial Climate Center, Hangzhou 310017, China;
    2. Shanxi Meteorological Service Center for Decision Making, Taiyuan 030006, China;
    3. Wuhan Regional Climate Center, Wuhan 430074, China
  • Online:2021-06-30 Published:2021-07-16



  1. 1.浙江省气候中心, 浙江杭州310017;2.山西省气象决策服务中心,山西太原030006;

Abstract: Based on 0 cm and 20 cm monthly average ground temperature and air temperature from 68 meteorological stations in Zhejiang Province from 1951 to 2018, and the annual average temperature for one hundred years at Hangzhou and Wenzhou stations, the 0 cm and 20 cm annual average ground temperature in Zhejiang Province from 1905 to 2018 were established by using the method of global correction of local station observations (GAoSV). The spatialtemporal characteristics of ground temperature at a century scale were analyzed through Morlet wavelet analysis, MK test and other climatic statistical diagnosis methods. The results are as follows: (1) The climate tendency rate of 0 cm and 20 cm ground temperature in Zhejiang was 0.2 ℃·(10 a)-1 (P<0.05) from 1905 to 2018. The highest, lowest and average value was 20.5,16.5 and 18.6 ℃ at a depth of  0 cm, and 19.9, 16.1 and 18.1 ℃ at a depth of 20 cm, respectively. (2) Under the background of climate warming, the ground temperature in Zhejiang Province experienced a “coldwarm” climate evolution, and the ground temperature was lower before the mid1990s and higher after that. Two obvious rising stages were during 1905-1925 and 1991-2018, respectively. (3) The spatial distribution of 0 cm and 20 cm annual average ground temperature in Zhejiang Province showed the same spatial distribution characteristics with low in the north and high in the south. The high value areas were distributed in Wencheng, Longquan, Lishui and the south of Wenling, while the low value areas were distributed in Anji, Xiaoshan, Deqing, Huzhou, Changxing. (4) Obvious oscillation periods of 2-6 years, 6-8 years and 16-20 years in different periods were detected through analyzing annual average ground temperature of 0 cm and 20 cm in Zhejiang Province from 1905 to 2018, and the abrupt point occurred around 1986.

Key words:  soil temperature series, change characteristics, abrupt point, Zhejiang Province

摘要: 基于通过RHtest方法检验订正的浙江68个气象台站1951—2018年0 cm、20 cm月平均地温、月平均气温观测资料和杭州、温州站百年气温资料,利用局部台站观测值全局修正(GAoSV)方法建立浙江1905—2018年年平均0 cm和20 cm地温序列,采用气候倾向率、低通滤波、小波分析、MK检验等气候统计诊断方法,分析浙江地区年平均地温百年尺度时空变化特征。结果表明:(1)1905—2018年浙江年平均0 cm、20 cm地温气候倾向率均为0.2 ℃·(10 a)-1 (P<0.05),0 cm年平均地温的最高值、最低值和平均值分别为20.5、16.5和18.6 ℃,20 cm年平均地温的最高值、最低值和平均值分别为19.9、16.1和18.1 ℃;(2)气候变暖背景下,浙江0 cm、20 cm地温经历“冷、暖”演变,20世纪90年代中期之前偏冷、之后偏暖,1905—1925年和1991—2018年为两个明显的上升阶段;(3)浙江年平均0 cm、20 cm地温空间分布均表现出北低南高特征,高值区分布在文成、龙泉、丽水和温岭南部地区,低值区分布在安吉、萧山、德清、湖州、长兴等地区;(4)1905—2018年浙江年平均0 cm、20 cm地温在不同时期存在2~6 a、6~8 a和16~20 a的振荡周期,突变均出现在1986年前后。

关键词: 地温序列, 变化特征, 突变, 浙江