论文部分内容阅读
温盐深测量仪(CTD)是目前国际上应用最为广泛的物理海洋调查仪器设备之一。2014年,中国科学院海洋研究所在黄海布放的潜标上搭载了3种不同型号的CTD(37Coastal、CTD48和304Plus),本文分别对这3种CTD所获取的数据资料进行了对比分析。三者数据两两对比结果显示,37Coastal与CTD48压力及温度数据最为接近,盐度数据则为37Coastal与304Plus相差最小。3种设备的压力、温度及电导率数据稳定性对比结果如下:37Coastal压力数据稳定性表现最好;三者温度数据稳定性表现一致;而37Coastal盐度数据稳定性和CTD48一致。三种设备均能适应海洋真实的物理环境参数变化观测,同时各自有其不同的使用环境,对于不同海域环境使用需要进行详细评估,综合各个方面的因素确定最终适合自身科学研究需求的方案。
Temperature Salt Depth Gauge (CTD) is currently one of the most widely used physical oceanographic instruments in the world. In 2014, the Institute of Oceanology of Chinese Academy of Sciences carried three types of CTD (37Coastal, CTD48 and 304Plus) on the submarine to be deployed in the Yellow Sea. The data obtained from these three CTDs were contrasted and analyzed. The comparison of the three data shows that the pressure and temperature data of 37Coastal and CTD48 are the closest, and the salinity data is the least difference between 37Coastal and 304Plus. The results of the comparison of the stability of pressure, temperature and conductivity data of the three kinds of equipment are as follows: The stability of 37Coastal pressure data is the best; the stability of temperature data of the three is consistent; and the stability of 37Coastal salinity data is consistent with that of CTD48. All three devices can adapt to the real change of physical environment parameters of ocean and have their own different usage environments respectively. The three devices can be used to evaluate the environmental requirements of different sea areas in detail and synthesize various factors to determine the final plan suitable for their own scientific research needs.