Missouri River bed elevations at pipeline crossing near Union, Nebraska surveyed during 2011 flood on July, 27
A RESON SeaBat™ 7125 multibeam echosounder in conjunction with an Applanix Position Orientation Solution 
for Marine Vessels (POS MV™) WaveMaster system motion sensor, HYPACK®/HYSWEEP® navigation software, 
and Ashtech Z-Xtreme GPS receivers or Trimble R8 receivers was used to survey the Missouri River bed at 15 …