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Hydrographic Surveyors

Hydrographic Surveyors Group Forum is for discussing hydrographic surveying anywhere on Earth.  Share your experiences in hydrographic surveying here.

Members: 12
Latest Activity: Dec 11, 2014

Hydrographuc Surveyors Group

Hydrographic surveying deals with the configuration of the bottom and adjacent land areas of oceans, lakes, rivers, harbours, and other water forms on Earth. In strict sense, it is defined merely as the surveying of a water area; however, in modern usage it may include a wide variety of other objectives such as measurements of tides, current, gravity, earth magnetism, and determinations of the physical and chemical properties of water. The principal objective of most hydrographic surveys, is to obtain basic data for the compilation of nautical charts with emphasis on the features that may affect safe navigation.Other objectives include acquiring the information necessary for related marine navigational products and for coastal zone management, engineering, and science.
Hydrographic surveying is undergoing fundamental changes in measurement technology. Multibeam acoustic and airborne laser systems now provide almost total seafloor coverage and measurement as compared to the earlier sampling by bathymetric profiles. The capability to position the data precisely in the horizontal plane has been increased enormously by the availabilityof satellite positioning systems, particularly when augmented by differential techniques. This advance in technology has been particularly significant since navigators are now able to position themselves with greater accuracy than that of the data on which older charts are based

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NOS Hydrographic Surveys Collection

Started by Surveying Jobber Sep 20, 2013. 0 Replies

The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect…Read more →

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Subject Tags: wrecks, water, hydro, bathymetry, rocks

Why is global ocean bathymetry important?

Started by Ryan Fernandez Apr 26, 2013. 0 Replies

Bathymetric data is important for producing navigation products (such as nautical charts) and for the advancement of many important Earth sciences. For example, a detailed knowledge of global…Read more →

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Reply by Ziad H. Alian on June 25, 2014 at 9:27pm

hi 
my name is ziad 
a student at faculty of arts studying general surveying 
in the summer time now the only thing i do is reading and studying the manual of International Hydrographic Organization (IHO)
and hypack, inc manual too
so any body there want to give me an advice 

 

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