牟平观测平台水体表观光学特性测量功能设计与实现

Design and Implementation of the Measurement Function of Water Apparent Optical Properties of Muping Observation Platform

牟平观测平台是我国水色卫星产品检验最基础的现场设施之一,该平台为实现长期的业务化、高质量海洋水色卫星产品检验工作提供了现实基础和技术保障。本文简要介绍了牟平观测平台建设的基本情况,重点介绍了平台上水体表观光学特性测量功能的设计与实现,并利用现场航次比测试验(20200611)中船基ASD实测数据与平台上搭建的2种水体表观光学测量系统同步观测数据进行了比对分析,此外对2020年4月29日至9月30日平台搭载的2种水体表观光学测量系统同步观测数据进行了互比分析。研究结果表明:平台上搭建的2种水体表观光学测量系统能够按照标准的观测几何要求,实施无人值守自动观测,测量获得遥感反射率的比对呈现较好的一致性,验证了平台在水体表观光学特性的基本测量功能。

Muping observation platform is one of the most basic in-situ facilities for the validation of ocean color products in China. It provides a practical basis and technical support for the realization of long-term operational and high-quality validation of ocean color products. This paper briefly introduces the construction of the Muping observation platform. The emphasis of this paper is on the design and implementation of the platform′s function in measuring the water apparent optical properties. A comparative analysis is made between the ship-based ASD data and the synchronous observation data from the two types of water-surface optical measurement systems built on the platform during the field voyage comparison test(20200611). In addition, a cross-comparison analysis is made between the synchronous observation data from the two types of water-surface optical measurement systems mounted on the platform between 2020.4.29 and2020.9.30. The results show that the two kinds of water apparent optical measurement systems built on the platform can implement unsupervised automatic observations according to the standard observation geometry requirements, and the comparison of remote sensing reflectance obtained by measurement shows consistency, which verifies the platform’s basic measurement functionality in water apparent optical properties.