Processed ship-based Multibeam Sonar Data (version 2) acquired off the coast of Central America during the Marcus G. Langseth expedition MGL0807 (2008)

This data set was acquired with a ship-based Kongsberg EM120 Multibeam Sonar system during Marcus G. Langseth expedition MGL0807 conducted in 2008 (Chief Scientist: Dr. W. Steven Holbrook). These data files are of MBSystem format and include Acoustic Backscatter, Sidescan, and Swath Bathymetry data and were processed by the GMRT Team using the open source MB-System multibeam sonar processing software as part of the GMRT Synthesis effort. These data are included in the GMRT Synthesis, version 2.1. Data were acquired as part of the project(s): Collaborative Research: Seismic measurements of magma flux, arc composition, and lower-plate serpentinization in the Central American subduction factory and TICO-CAVA, 2008 Leg 2, and funding was provided by NSF grant(s): OCE04-05556, OCE04-05572, OCE04-05608, OCE04-05654, OCE05-20378, and OCE06-25178.

本数据集采用船载康士伯（Kongsberg）EM120多波束声呐系统采集，数据采集工作于2008年开展的Marcus G. Langseth号考察航次MGL0807期间完成，本次航次首席科学家为W. Steven Holbrook博士。该数据集文件采用MBsystem格式，涵盖声学反向散射（Acoustic Backscatter）、侧扫（Sidescan）及条带测深（Swath Bathymetry）数据，由GMRT团队依托开源MB-System多波束声呐处理软件，作为GMRT合成项目的组成部分完成数据处理。本数据集已被纳入GMRT合成项目2.1版本。本次数据采集隶属于如下研究项目：合作研究项目“中美洲俯冲带岩浆通量、弧组分及下盘蛇纹石化的地震测量”，以及2008年第2航次TICO-CAVA项目；项目资助由美国国家科学基金会（National Science Foundation, NSF）提供，涉及拨款编号为OCE04-05556、OCE04-05572、OCE04-05608、OCE04-05654、OCE05-20378及OCE06-25178。