中国科学院大学学报2014，Vol.31Issue(6)：776-782,7.DOI:10.7523/j.issn.2095-6134.2014.06.008
利用气象台站浅层地温资料计算地温梯度的讨论
Discussion about calculation of geothermal gradient based on historical meteorological data
摘要
Abstract
Theoretically,one can calculate the information of steady-state geothermal gradient based on long-term temperature observations near the surface.We point out that it is difficult to determine heat flux in actual implementation by using meteorological records with a precision of 0.1 ℃.However,it may make a breakthrough by statistically analyzing a large amount of accumulated temperature observations.The influence of global warming on shallow geothermal gradient is also discussed.Although the monotonous increase in the ground temperature in a long term of centennial scale indeed leads to the decrease in shallow geothermal gradient and to the deviation from the geothermal gradient connected with heat flux,the calculated geothermal gradient errors are still within an acceptable range if the warming amplitude is within 1 ℃.Deriving geothermal flux based on meteorological data by a high-precision digital thermometer is feasible,but it requires us to accumulate data for a long term from now on.关键词
气象地温资料/地温梯度/全球变暖/误差估计Key words
meteorological data / geothermal gradient / global warming/ error estimation分类
天文与地球科学引用本文复制引用
尹凤玲,张怀,石耀霖..利用气象台站浅层地温资料计算地温梯度的讨论[J].中国科学院大学学报,2014,31(6):776-782,7.基金项目
中国科学院、国家外国专家局创新团队国际合作伙伴计划(KZZD-EW-TZ-19)和国土资源部深部探测技术与实验研究专项(201011073)资助 （KZZD-EW-TZ-19）
