东海东北部原虎皮礁海域岩礁特殊地形的新认识和新发现

New Discovery about Particular Topography of Reef in Hupi Reef Area, Northeast Part of East China Sea

王振宇 丁宇 梁若冰

WANG Zhen-yu DING Yu LIANG Ruo-bing

中石化股份 上海海洋油气分公司, 上海 200120; 中石化 上海海洋石油局第一海洋地质调查大队, 上海 201208

Shanghai Offshore Petroleum Branch of SINOPEC, Shanghai 200120, China; The No.1 Party of Marine Geological Survey of SINOPEC, Shanghai 201208 China

多波束测深系统是当代高新技术的集成,是世界上目前进行水深测量最先进的手段,其特点在于用它可以对海底地形进行全覆盖无遗漏的测量,精度高、效率快。在执行我国专属经济区和大陆架勘测专项任务中,于东海东北部原虎皮礁海域利用浅水多波束系统对水深和海底地形进行了详细和重复测量,并相继采用了浅地层剖面测量和旁侧声纳扫描系统进行了验证,其结果都发现虎皮礁、鸭礁两个岩礁地形根本不存在;苏岩存在但位置向西有所偏移;对苏岩南侧的沉船标定了精确的位置;并在苏岩东北方向新发现了一个"丁岩"暗礁。

Multi-beam Bathymetric System, which integrating new and high technology, is the most ad-vanced bathymetric technique in the world right now. It features high precision and efficiency, and the sea floor can be surveyed with full coverage. During the process of China Exclusive Economic Zone and Conti-nental Shelf Survey Program, the water depth and sea floor topography have been probed by means of shal-low water Multi-beam Bathymetric System repeatedly at old Hupi Reef area in the northeast part of East China Sea. Later the shallow seismic and side-sonar survey have been conducted for verification. All results indicated that the so called Hupi Reef and Ya Reef was not existed. The Suyan Reef does exist, but located to the west a bit compared to the location on the old map. In the meantime, we got the precise location of the wreck ship at the south of Suyan Reef. And a new submerged reef, named "Dingyan", was discovered at northeast part of Suyan Reef.