Bathymetric survey in fjord in front of Bowdoin Gletscher, Greenland in July 2013

Sonar (Lowrance HDS-5) was used for bathmetric survey in the fhord. Oscillator was fixed at the side of fish boat, and sound was emitted in 83Khz. Survey route was measured by GPS, which is including in the sonar.本数据集采用声呐（Sonar，Lowrance HDS-5型号）开展峡湾水深测量作业：将振荡器（Oscillator）固定于渔船舷侧，发射频率为83千赫兹的声波；测量航线通过全球定位系统（GPS）获取，相关数据集成入该声呐系统。