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Celebrating World Hydrography Day
June 22, 2020
TAS ’19 Meg Stewart took this photo of hydrographers preparing a small survey vessel, a “launch,” for survey work.
Photo: Meg Stewart
Often [before starting to survey], the launch drives in a circle eight in order for the positioning receivers to be “seen” by the satellites, as a stationary object is more difficult to detect than one that is moving. Setting up the day’s project using the multibeam echosounder software also takes some time but all the steps need to be done properly and to the correct specifications prior to starting the sounder. If not, the locational data will be wildly off and the depths inaccurate.Read the blog post
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9 photos for launch · Clear
Small Vessel, Big on SafetyNovember 30, 2020
Celebrating World Hydrography DayJune 22, 2020
Reeling in DataNovember 18, 2019
Getting In CloseJune 10, 2019
A Different Kind of CommuteJuly 23, 2018
Dodging the ‘BergsJuly 16, 2018
Lowering the Launch into the water!September 21, 2015
“A survey technician uses a spotting scope to get distance and height of obstructions.”October 6, 2014
“Hydrographic survey launches can go to shallower depths than the large hydro ships, allowing them to get much closer to shoals and the coast.”July 22, 2013


