新华社权威速览丨从探洋识冰到巡天瞰海：中国海洋卫星大家族都有哪些成员？

Core Viewpoint - The article discusses the development and capabilities of China's marine satellite family, highlighting their roles in ocean monitoring and research, particularly during the recent Antarctic expedition. Group 1: Marine Monitoring Satellites - China has established a marine satellite observation system, creating a "marine perception network" with three operational marine monitoring satellites currently in orbit, including the Gaofen satellite and two 1-meter C-SAR satellites [3][4]. - The marine monitoring satellites are capable of providing all-weather, high-resolution microwave observations, which are essential for navigation through ice and for maintaining maritime rights [4]. Group 2: Ocean Color Satellites - The ocean color satellites, including Haiyang-1C, 1D, and 1E, can accurately capture ecological parameters such as chlorophyll concentration and sediment levels by measuring the sunlight reflected from the sea surface [6][7]. - These satellites have achieved medium-resolution daily coverage of China's coastal waters, with plans to launch additional satellites to enhance ecological and coastal monitoring capabilities [7][9]. Group 3: Ocean Dynamics Satellites - The ocean dynamics satellites can simultaneously measure various marine environmental parameters, including sea surface height, wind fields, sea surface temperature, and wave heights, with five satellites currently in orbit [10][11]. - The operational satellites include Haiyang-2B, Haiyang-2C, and Haiyang-2D, contributing to a comprehensive understanding of ocean dynamics [11].