Ship-based Trackline Geophysical Data (MGD77) acquired along the Lau Back-arc Basin during the Maurice Ewing expedition EW9914 (1999)

This data set was acquired with a ship-based BellAerospace BGM-3 Gravimeter, Geometrics G-886 Magnetometer, and Atlas Hydrosweep DS Multibeam Sonar system during Maurice Ewing expedition EW9914 conducted in 1999 (Chief Scientist: Dr. Alistair Harding). These data files are of MGD77 format and include Singlebeam Bathymetry, Gravity Field, and Magnetic Field data and were processed after data collection. Data were acquired as part of the project(s): A MCS Survey of the Lau Spreading Center: A New Look into Crustal Accretion at Back Arc Spreading Centers, and funding was provided by NSF grant(s): OCE95-29870 and OCE95-30325.

本数据集由科考船搭载BellAerospace BGM-3重力仪（BellAerospace BGM-3 Gravimeter）、Geometrics G-886磁力仪（Geometrics G-886 Magnetometer）以及Atlas Hydrosweep DS多波束声呐系统（Atlas Hydrosweep DS Multibeam Sonar system）采集获取，相关数据来源于1999年执行的莫里斯·尤因号（Maurice Ewing）科考航次EW9914，本次航次的首席科学家为阿利斯泰尔·哈丁博士。本数据集文件采用MGD77格式，包含单波束测深数据、重力场数据与磁场数据，所有数据均在采集完成后进行了数据处理。本次数据采集作为项目"劳扩张中心多道地震调查：弧后扩张中心地壳增生的新视角"（A MCS Survey of the Lau Spreading Center: A New Look into Crustal Accretion at Back Arc Spreading Centers）的一部分开展，研究得到了美国国家科学基金会（National Science Foundation，NSF）编号为OCE95-29870与OCE95-30325的项目资助。