广西全面完成北部湾近岸海域水下地形测绘

Core Insights - The completion of underwater topographic surveys in the Beibu Gulf region marks a significant achievement for Guangxi, covering approximately 3,000 square kilometers of the nearshore area at depths of 0-10 meters for the first time [1][2] Group 1: Project Overview - The underwater topographic survey project was initiated by the Guangxi Natural Resources Department in 2022, focusing on key areas such as the Pailu River estuary, Qinzhou Port, and Tieshan Port, with a phased implementation strategy [1] - The project has successfully applied a new "no tidal verification" depth measurement model based on a high-precision geoid model, significantly enhancing operational efficiency and data accuracy [1] Group 2: Applications and Impact - The project produced diverse and high-precision geographic information products, including underwater topographic maps at scales of 1:10,000 and 1:2,000, which support major engineering planning and construction [2] - The integrated underwater topographic data with terrestrial 3D models has established a unified and authoritative 3D spatial framework for natural resource management and land spatial planning in Guangxi [2]