中国近海海面高度异常资料再处理

发布时间：2018-01-10 13:09

本文关键词：中国近海海面高度异常资料再处理　出处：《海洋科学》2016年07期 　论文类型：期刊论文

【摘要】：卫星海面高度异常产品再处理的研究多集中在欧洲和美国近海,中国近海尚未有过。在产生AVISO(Archiving Validation and Interpolation of Satellite Oceanographic Data)全球0.25°多颗卫星海面高度异常产品时,只用了1/3~1/2的部分沿轨资料,给区域海洋动力学研究造成了一定的限制。本研究尝试利用多颗卫星的所有沿轨资料及25个测潮站的观测资料,通过最优插值方法产生一份新的中国近海海面高度异常资料。新资料的空间分辨率仍为0.25°,但使用了来自3颗卫星(Jason-1、Jason-2、Cryo Sat-2)的所有沿轨资料及25个测潮站的观测资料。新资料的范围为10°S~50°N、90°~160°E。新资料与AVISO资料的对比分析表明新资料更接近沿轨海面高度异常观测,同时也更接近测潮站资料。与AVISO资料相比,新资料与沿轨海面高度异常观测的均方根误差降低了10.03%,与测潮站资料的均方根误差降低了9.6%。
[Abstract]:The reprocessing of satellite sea surface height anomaly products is mainly focused on the coastal areas of Europe and the United States. There has not been any offshore China. Archiving Validation and Interpolation of Satellite Oceanographic. Data). The global sea surface height anomaly time of more than 0.25 掳satellites. Only 1 / 3 / 2 of the orbital data is used, which limits the study of regional marine dynamics. In this study, we try to use all the orbiting data of multiple satellites and the observation data of 25 tidal stations. A new offshore sea surface height anomaly data is generated by the optimal interpolation method. The spatial resolution of the new data is still 0.25 掳, but Jason-1 from three satellites is used. Jason-2 Cryo Sat-2) all the orbital data and the observational data of 25 tidal stations. The new data range is 10 掳S ~ (1) ~ (50 掳N). The comparison between the new data and the AVISO data shows that the new data are closer to the anomalous observation of the sea surface height along the orbit, and also to the tide station data. Compared with the AVISO data, the new data are more similar to those of the AVISO data. The root mean square error between the new data and the anomalous observation of the sea surface height along the orbit is reduced by 10.03 and the root mean square error of the tidal station data is reduced by 9.6.
【作者单位】：南京信息工程大学海洋科学学院;江苏省海洋环境探测工程技术研究中心;中国科学院大气物理研究所LASG;
【基金】：国家自然科学基金委项目(41328006) 南京信息工程大学启动经费项目(S8113046001) 2015江苏双创团队江苏高校优势学科建设工程资助项目(PAPD)~~
【分类号】：P715.6
【正文快照】： Satellite Oceanographic Data);测潮站卫星海面高度观测在一定条件下可以分辨海洋中尺度涡旋。海面高度是反映海洋状况的重要变量之一,其遥感观测主要是基于卫星高度计。卫星高度计是一种主动式微波遥感器,由发射器、接收器、计时系统和数据采集系统组成。卫星高度计的原理是

【相似文献】