Argo浮标电导率漂移误差检测及其校正方法探讨  

Discussing on Detecting and Calibration Method of Argo Conductivity Sensor Drift Errors

作　　者：刘增宏[1] 许建平[1] 孙朝辉[1] 

机构地区：[1]国家海洋局第二海洋研究所,浙江杭州310012

出　　处：《海洋技术》2007年第4期72-76,共5页Ocean Technology

基　　金：国家科技部国际合作重点资助项目(2002CB714001)

摘　　要：文章引入位势电导比(potential conductivity ratio)的概念,对一个在西北太平洋上观测时间长达4a的Argo剖面浮标进行了诊断分析,并利用现场CTD资料和简单的误差消除法,对该浮标由电导率传感器漂移所产生的盐度误差进行了校正处理,且与目前同际上公认的WJO方法进行了比较,发现利用现场CTD资料校正Argo浮标长期观测所产生的盐度误差更直观、更简便,其校正结果也是可信的。With the variable of potential conductivity ratio introduced, an Argo profiling float which has being observed in the northwestern Pacific for four years is diagnosed and analyzed. Using in-situ CTD data and a simple errors eliminating method, the salinity errors owing to conductivity sensor drift are calibrated. The calibrated results compared with that of WJO method indicate that it is more intuitionistic and convenient to calibrate the salinity errors of Argo float due to long-term observing.

关 键 词：ARGO剖面浮标 位势电导率 盐度 漂移误差 校正 

分 类 号：P715.2[天文地球—海洋科学] P731.12