海洋科学Issue(8):59-66,8.DOI:10.11759/hykx20130823002
处理走航式海洋多参数剖面测量系统(MVP)温度和电导率滞后效应的方法
A data processing method on the hysteresis effect of temp-erature and conductivity of moving vessel profiler (MVP)
摘要
Abstract
The moving vessel profiler (MVP) is a high integration and automatic equipment for marine investigation. Multi-parameter can be observed simultaneously to obtain data with high spatial resolution. Since the response time of sensors does not match between temperature and conductivity, a serious salinity spiking appears when the speed of lowering MVP is too fast (peaking speed 4 m/s). In this study, we proposed a novel method to weaken the salinity spiking via matching the response time of pressure, temperature, and conductivity sensors. The results showed that the error of corrected data was reduced by 80%compared with SBE-9 conductance temperature depth (CTD) data, and the cross-correlation with CTD data was 0.917. In addition, the area of low salinity in halocline of 35 °N section disappeared after correction. It indicated that MVP has advantages in fine structure over CTD.关键词
走航式海洋多参数剖面测量系统 MVP/盐度尖峰/MCT(match conductivity and temperature response time)法Key words
moving vessel profiler (MVP)/salinity spiking/match conductivity and temperature respsnse time (MCT) method分类
海洋科学引用本文复制引用
任强,于非,刁新源,司广成,魏传杰..处理走航式海洋多参数剖面测量系统(MVP)温度和电导率滞后效应的方法[J].海洋科学,2014,(8):59-66,8.基金项目
国家自然科学基金面上项目(41176018) (41176018)