Core Viewpoint - The article highlights the ongoing maintenance work of large marine observation buoys by the South China Sea Investigation Center, emphasizing the importance of continuous monitoring of marine environmental factors for the development of green marine energy [1] Group 1: Maintenance Operations - The South China Sea Investigation Center's hydrometeorological team is conducting annual maintenance on four large marine observation buoys with a diameter of 10 meters [1] - These buoys are equipped with various sensors to monitor ocean wind fields, waves, and other factors, enabling long-term continuous observation [1] - Despite adverse sea conditions influenced by winter winds, technical personnel successfully managed the disassembly, inspection, and data recovery of core equipment [1] Group 2: Importance of Marine Energy - Offshore wind energy and wave energy are identified as key areas for the development and utilization of marine green energy [1] - The South China Sea Investigation Center aims to enhance the construction of a three-dimensional marine observation network to provide accurate and reliable marine data for offshore wind power planning, environmental assessment, and disaster prevention [1]