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Comments (7):

when you published about indonesia hydrographic survey work, our country is island country Aris - 28/10/2010 - 16:20


why not cover more companies like EVTN.com? Ruth - 30/09/2010 - 23:11


I hope oil spills will not continue, because if the test soon ecosystems and marine resources will our right to a pound or kiet.chung together we contribute financial appeal Lady hands in troubleshooting this soon
Nghe
ho ngoc minh son - 05/09/2010 - 17:54


Do you have a date and time, of when BP WILL START EMPLOYING THE USE OF COSTNERS OIL SEPARATION MACHINES???

cANT SEEM TO FIND ANY ANSWERS ON THIS TOPIC ANYWHERE?

Why have they not been put into use as of yet??

Thank you for your time.

Sending my prayers

debbie klienback

Gulfcoastgourds@aol.com

A citizen that lives on the gulf
debbie may - 11/06/2010 - 19:50


this oil spill is something that will teach us a great leason. And that is that we are do not own the land but the land own us and our planet, which is our house speak by itself saying: hey take it easy, i got shelter or you, there is food and joy but please, treat me good. isgo - 30/05/2010 - 06:02


I hope they hurry up and get the oil spill under control cplot4u1@yahoo.com - 20/05/2010 - 14:53


Zoals ik al gemaild had aan Joost, kon ik de extra informatie in de news letter erg waarderen.

Ik denk uberhaupt dat deze extra news letters, inspringend op de acutualiteit, heel erg interessant zijn voor mensen, die niet zelf in de business zitten (zoals Xsens), maar wel een toeleverancier zijn.

Groeten,

Marcel
Marcel van Hak - 14/05/2010 - 10:46


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Hydrographic Survey of Riverbed Erosion

Members of the US Geological Survey were filmed while out on the Missouri River at Williston, North Dakota, USA, performing a hydrographic survey to monitor the state of riverbed erosion. They were using a multibeam echo sounder which transmits sound energy and analyses the return signal (echo) that has bounced off the riverbed or other objects. Multibeam sonars emit sound waves from directly beneath a ship's hull to produce fan-shaped coverage of the riverbed. 


Gauge height at the Williston gauge was approximately 27.65 feet when this video was taken. Additional information about the USGS streamgauge at Williston is available at http://waterdata.usgs.gov/nd/nwis?program=nwisman&site_no=06330000

 

 Last 5 items:
 Hydrographic Survey of Riverbed Erosion
 Introduction to GEBCO
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