Hydrographic Surveying Are Carried Out for One or More of the Following Activities
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Transcript of Hydrographic Surveying Are Carried Out for One or More of the Following Activities
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8/16/2019 Hydrographic Surveying Are Carried Out for One or More of the Following Activities
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Hydrographic surveying are carried out for one or
more of the following activities.
Determination of Tide
• Measurement of tides for sea coast work
Determination of Depth
• For navigation
• Bathimatric Survey
• Location of rocks, sand bars, navigation light
Determination of direction
• The location of sewer any pipe or channel that carry waste water out falls
• Measuremenment of !uantity of water and "ow of water in connection of water
schemes, #ower scheme and "ood controls
Why we need Hydrographic Surveys - Uses &Applications of Hydrographic Survey
$ %&shore engineering and the shipping industry have continued to e'pand
( Drilling rigs )e'tracting oil, gas etc from deep sea* locating up to $(+mileso&shore, search for resources particularly oil and gas
%&shore islands are constructed of dredged material )to bring material formsome where and dump there* to support marine structure
- .arbor depth up to /0 is re!uired to accommodate larger ships and tankers
+ 1ontaineri2ation has become an e3cient and preferred method of cargohandling
4 The demand for recreational transportation ranges form large pleasure cruiseships to small sail bonds
5 1ruise ships to small sail bonds .ydrographic surveys are made to a !uire andpresent data on oceans, lakes and harbors 6t comprises all surveys made for
o The determination of shore lines, soundings )measurement of depth below
the water level* characteristics of bottoms, areas sub7ected to Suring andsilting, depth available for navigation and velocity as well ascharacteristics of "ow of water
o The location of lights rocks sand balls, buoys ) anything that "oats on thesurface of water*
•