Hydrographic Surveys of the Missouri River at Tobacco chute, 2011-13
An Innerspace 456 single-beam echosounder in conjunction with a Trimble® differential 
Global Positioning Satellite system (DGPS), HYPACK® navigation software, and 
Ashtech Z-Xtreme and Trimble® R8 Global Navigation Satellite System (GNSS) 
receivers was used to survey 7 chutes and 3 backwaters on the Missouri River …