基于无人测量船的人工鱼礁投放空方量测量与评估

Surveying and Evaluation of Earthwork Volume of Artificial Reefs Using Unmanned Surface Vehicle

人工鱼礁及其投放量是国家级海洋牧场示范区建设和考核重要指标。针对近海海洋牧场人工鱼礁投放空方量监测与评估需求,基于自主研发的“OPENUSV”号无人测量船平台,集成多波束测深系统、侧扫声呐探测系统和导航定位系统等海洋调查测量设备,实现远距离自动巡航测量。经对多波束测深系统获取的海底地形测量数据和侧扫声呐系统探测的海底地貌探测数据解译处理,圈划出目标海域内75块人工鱼礁重点分布区,累计获得人工鱼礁礁体投放总体积为51667.3 m^3,实现了目标海域人工鱼礁投放空方量科学快速核算与评估,取得了理想试验效果,为国家海洋牧场建设及其运营、投资评估管理等工作开拓了一个新的技术服务手段和管理视角。

Artificial reefs and their earthwork volume are important indicators for construction and assessment of national marine ranching demonstration zone.For the demands of monitoring and evaluating the earthwork volume of artificial reefs in the offshore marine ranches,a self-developed unmanned surface vehicle platform OPENUSV,which is integrated by marine survey instruments such as multi-beam sounding system(MBS),side scan sonar system(SSS),navigation and positioning system(NPS)and other marine surveying sensors,is applied to realize the remote automatic cruise surveys.Through the processing of the seafloor topographic data acquired by MBS and the seafloor geomorphic data obtained by SSS,75 blocks of key distribution areas of the artificial reefs are identified in the target sea area and a total volume of 51667.3 m^3 of artificial reefs is obtained cumulatively,thus realizing scientific and rapid accounting and assessment of artificial reef volume in the target sea area and achieving the ideal experimental results.This study may open up a new window of technical service and a new management prospective for the construction,operation and investment assessment of the national marine ranches.