Bathymetric survey in fjord in front of Bowdoin Glacier, Greenland in July 2014

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 kinematic GPS.采用声呐（Sonar, Lowrance HDS-5）开展峡湾水深测量作业。振荡器固定于渔船舷侧，发射频率为83千赫兹的声波。测量航线通过运动学全球定位系统（Kinematic GPS）完成测定。