摘要
通过实地观测试验,并采用傅里叶分析法进行理论分析,来研究长春地区地表温度日变、年变对地温测量的影响规律及影响深度,为在长春地区利用浅层地温测量方法研究地质问题提供重要参数信息.地温变化幅度随深度作指数衰减,衰减系数与地表温度周期、热扩散率有关.
To provide important parameter information when we research geologic problem by near-surface temperature survey , we study influence-law and influence-depth of daily and annual variation of surface temperature on geotemperature in Changchun ovservation station, and through field observation and Fourier-analysis method. The temperature amplitude decreases exponentially with depth; decay coefficient is dependent on temperature period and thermal diffusivity.
出处
《地球物理学进展》
CSCD
北大核心
2006年第3期1008-1011,共4页
Progress in Geophysics
基金
中国地质调查局项目(200120120085)资助
关键词
浅层地温测量
地表温度
日变
年变
傅里叶级数
near-surface temperature survey, surface temperature, daily variation, annual variation, Fourier series
