冻土自动观测仪性能比对分析  

Performance comparison analysis of frozen soil automatic observation instrument

作　　者：胡树贞[1] 刘志刚 吴东丽[1] 王志成[1] 费习坤 Hu Shuzhen;Liu Zhigang;Wu Dongli;Wang Zhicheng;Fei Xikun(Meteorological Observation Center of CMA,Beijing 100081;Qinhuangdao Meteorological Bureau,Qinhuangdao 066000)

机构地区：[1]中国气象局气象探测中心,北京100081 [2]秦皇岛市气象局,秦皇岛066000

出　　处：《气象水文海洋仪器》2020年第4期4-7,共4页Meteorological,Hydrological and Marine Instruments

基　　金：公益性行业(气象)科研专项(GYHY200906033)资助.

摘　　要：文章介绍了冻土自动观测仪的设计原理,并设计了针对冻土的外场和实验室试验方案。试验以TB1-1型冻土器为参考标准,对5种型号冻土自动观测仪的性能进行比对分析,同时分析了误差产生的原因。通过试验,冻土自动观测与人工观测在外场比对时系统误差为±2 cm,标准偏差和误判深度在4 cm以内,冻土自动观测仪能够反映出试验站点土壤的冻结状况,实验室测试时自动观测与人工观测之间的偏差较小,验证了冻土自动观测仪取代人工冻土观测是可行的。This paper introduces the design principle of the automatic observation instrument for frozen soil,and designs the field and laboratory test scheme for frozen soil.The test is based on the reference standard of TB1-1 frozen soil instrument,then comparative analysis has been made on the performance of five types frozen soil automatic instruments,and the causes of errors have also been analyzed.Through experiment,the systematic error between automatic and manual observation is±2cm,when it is compared on external field test,and standard deviation and misjudgment depth is within 4cm.The frozen soil automatic instrument can reflect the freezing state of the soil at test site.The deviation between automatic and manual observation in laboratory testing is small,which has proved the feasibility of replacing artificial observation with automatic observation instrument.

关 键 词：冻土 冻土器 自动观测仪 比对分析 

分 类 号：P412.13[天文地球—大气科学及气象学]