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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: 19
Latest Activity: Dec 14, 2016

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

Land Surveyor Forum - Community Discussions

Crossing a River with Differential levels a Wide River, How Wide ?

Started by Billy Brooks. Last reply by Billy Brooks Dec 14, 2016. 2 Replies

 Hello Everyone, It hasn't been too many years ago that surveyors  face and had to over come the task of crossing a wide river or even a wide canyon with only there levels.In doing this they work out…Read more →

Tags: surveying, crossing, rivers

Take Shots on the Thalweg, take shots on what!!

Started by Billy Brooks. Last reply by Billy Brooks Feb 25, 2016. 3 Replies

Hi everyone,One day i was asked …Read more →

Tags: question, thelweg

NOS Hydrographic Surveys Collection

Started by ⚡Survenator⌁ Sep 20, 2013. 0 Replies

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

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 →

Photos on the Network Tagged 'hydrographic'

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Reply by Billy Brooks on February 17, 2016 at 1:37am

Hi everyone, Ready to share my stories and discussion on my history of the Mississippi River, Gulf coast, GIWW that is Gulf Inter Coastal Water Ways and the never ending job to survey them.From flood studies to large Dredging projects.Building large Dams,surveying Dams for safety call Priority 1 Dams ,tributaries rivers , lakes and canal.Most of this work in the U. S. falls under the jurisdiction of the Army Corps of ENG. So get our boots on.

good day every one.     Billy

Seeking Employment
Reply by amir shahbaz on February 23, 2015 at 2:11pm

I am new in hydrographic surveying please give me some guide line regarding career building in hydrographic surveying .For more information please review my profile

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

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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