The Search for Flight MH370 - Phase 2 Raw and Processed Data

On behalf of Australia, and in support of the Malaysian accident investigation, the Australian Transport Safety Bureau (ATSB) led search operations for missing Malaysian Airlines flight MH370 in the Southern Indian Ocean. Geoscience Australia provided advice, expertise and support to the ATSB to facilitate marine surveys, which were undertaken to provide a detailed map of the sea floor topography to aid navigation during the underwater search. Prior to the Phase 1 bathymetric survey, very little was known about the sea floor in the MH370 search area, as few marine surveys have taken place in the area. Existing maps of the sea floor were coarse, having been derived from satellites and only providing a general indication of water depth. Before the underwater search for MH370 could begin, it was necessary to accurately map the sea floor to ensure that the search was undertaken safely and effectively. Survey vessels spent months at sea, scanning the sea floor with multibeam sonar and side scan sonar to gather detailed, high-resolution data.This collation of datasets contains the high resolution raw and processed data acquired during Phase 2 of the search for MH370 as received by third party operators. The Phase 2 underwater search data was acquired by multiple vessels, including the Fugro Equator, Fugro Supporter, Fugro Discovery, Havila Harmony, Dong Hai Jiu 101 and Go Phoenix. Surveys were conducted using towed and autonomous underwater vehicles between September 2014 to January 2017, collecting over 121,000 square kilometres of high resolution data in the search area.All material and data is subject to copyright. Please note the creative commons copyright notice and relating to the re-use of this material. Geoscience Australia's preference is that you attribute the datasets (and any material sourced from it) using the following wording: Source: Governments of Australia, Malaysia and the People's Republic of China, 2018. MH370 Phase 2 data - Raw and processed.We honour the memory of those who have lost their lives and acknowledge the enormous loss felt by their loved ones.

受澳大利亚委托并为支持马来西亚事故调查工作，澳大利亚交通安全局（Australian Transport Safety Bureau, ATSB）牵头开展了南印度洋海域失联马来西亚航空MH370航班的搜寻行动。澳大利亚地球科学局（Geoscience Australia）为ATSB提供咨询、专业技术支持与协助，以推动海洋测绘作业开展——该作业旨在绘制高精度海底地形地图，为水下搜寻期间的航行提供辅助。在第一阶段水深测量作业开展前，MH370搜寻海域的海底状况几乎未被探明，因该区域极少开展海洋测绘工作。现存海底地图精度较低，仅由卫星数据推导而来，仅能大致反映水深概况。在MH370水下搜寻正式启动前，需先完成高精度海底测绘，以确保搜寻作业安全且高效地实施。测绘作业船在海上历时数月，通过多波束声呐与侧扫声呐对海底开展扫描作业，以获取详细的高精度测绘数据。本数据集合集收录了第三方运营商获取的MH370搜寻第二阶段（Phase 2）作业期间采集的高精度原始数据与经处理后数据。本次第二阶段（Phase 2）水下搜寻数据由多艘作业船采集，涵盖富格赤道号（Fugro Equator）、富格支持者号（Fugro Supporter）、富格探索号（Fugro Discovery）、哈维拉和谐号（Havila Harmony）、东海救101号（Dong Hai Jiu 101）与凤凰号（Go Phoenix）。作业时段为2014年9月至2017年1月，通过拖曳式与自主式水下运载工具完成测绘，在搜寻海域累计采集超12.1万平方公里的高精度数据。所有资料与数据均受版权保护。请注意本资料再利用所涉知识共享（Creative Commons）版权声明。澳大利亚地球科学局建议按以下方式对本数据集（及从中提取的任何资料）进行署名：来源：澳大利亚、马来西亚与中华人民共和国政府，2018年。MH370第二阶段（Phase 2）数据——原始与处理后数据。我们缅怀在此事件中罹难的所有人员，并对其亲友所承受的巨大损失与悲痛致以诚挚慰问。