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Position: Home > Articles > Characteristics of Ground Temperature Variation in the Northern Suburb of Nanjing Journal of Anhui Agricultural Sciences 2017,45 (3) 222-225

南京北郊地温变化特征

作  者:
黄明阳;李媛;雍佳;邢雯雯
单  位:
南京信息工程大学大气物理学院
关键词:
地温;变化特征;差分进化算法;垂直结构
摘  要:
利用位于南京北郊的南京信息工程大学观测基地2010年各层(0、5、10、15、20、40、80、160、320 cm)地温数据,采用统计分析方法对南京北郊地温的变化特征进行了分析,揭示南京市浦口地区地温与时间、深度的变化关系。结果表明,南京北郊地区表层地温以及浅层地温有明显的季节变化和日变化,呈近似于正弦曲线的变化趋势。从地表到20 cm深时,地温的日变化逐渐减弱;当深度在40~320cm时,地温日变化已不明显。在垂直方向上,各层地温日变化幅值随着深度增加而减小,随着深度的增加峰值出现的时间逐渐滞后。
译  名:
Characteristics of Ground Temperature Variation in the Northern Suburb of Nanjing
作  者:
HUANG Ming-yang;LI Yuan;YONG Jia;College of Atmospheric Physics,Nanjing University of Information Science and Technology;
关键词:
Ground temperature;;Change characteristics;;Differential evolution algorithm;;Vertical structure
摘  要:
By using ground temperature data of each layer( 0,5,10,15,20,40,80,160,320 cm) in 2010 observed by Nanjing University of Information Science and Technology located in northern suburb,the variation characteristics of ground temperature were analyzed by statistical analysis method,the variation of ground temperature with time and depth in Pukou Region,Nanjing City was revealed. The results showed that,there were obvious seasonal and diurnal variations of surface temperature and shallow ground temperature in northern suburb of Nanjing,the change trend was similar to the sine curve. From land surface to 20 cm depth,the daily change of ground temperature decreased gradually; from40-320 cm,the daily variation of ground temperature was not obvious. In vertical direction,the diurnal variation of ground temperature in each layer decreased with the increase of depth,the appearance of peaks gradually delayed with depth increasing.

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