Raw ship-based Multibeam Sonar Data from the Nankai Trough Subduction Zone acquired during R/V Maurice Ewing expedition EW9907 (1999)

This data set was acquired with a ship-based Atlas Hydrosweep DS Multibeam Sonar system during Maurice Ewing expedition EW9907 conducted in 1999 (Chief Scientist: Dr. Nathan Bangs). These data files are of MBSystem Compatible format and include Swath Bathymetry data that have not been processed. Data were acquired as part of the project(s): A 3-D Seismic Investigation of the Aseismic to Seismic Transition along the Eurasian-Phillippine Sea Plate Boundary: U.S.-Japan Cooperative Program, Seismic Velocity, Compaction, and Pore Pressure in Underthrust Sediments, Nankai Subduction Zone, and A 3-D Seismic Investigation of the Sediment-to-Rock Transition and Its Relationship to Nankai Subduction Thrust Seismicity: U.S.-Japan Collaborative Program, and funding was provided by NSF grant(!
s): OCE02-41375, OCE02-41380, OCE02-41482, OCE97-30637, OCE98-02264, and OCE98-02295.

本数据集系于1999年执行的马休·尤因探险EW9907期间，由首席科学家南森·邦斯博士领导的考察活动中，利用搭载于船舶上的Atlas Hydrosweep DS多波束声纳系统所采集。数据文件采用与MBSystem兼容的格式，包含未经处理的海底测深数据。这些数据是作为以下项目的一部分而获取的：对欧亚-菲律宾海板块边界上非地震至地震转换区域的3D地震调查：美日合作项目，对海底冲积层中的地震波速、压实度和孔隙水压力的研究：美日合作项目，以及对沉积岩过渡带的三维地震调查及其与南海海沟板块逆冲地震活动的相关性：美日合作项目。该项目的研究资金由以下美国国家科学基金会（NSF）资助项目提供：OCE02-41375、OCE02-41380、OCE02-41482、OCE97-30637、OCE98-02264和OCE98-02295。