Learning & reference
Resources
Free software, tutorials, videos, and technical notes from over two decades in hydrographic surveying.
Free Software
2 programs
Windows program
MosaicHydro Tools: Offline Calculator Bundle
Multibeam calculators, survey file analyzers and conversion tools in one program that works without an internet connection.
→ Details & download
Windows program
MosaicHydro NTRIP Client
Receive RTK corrections from an NTRIP caster and share them with every GNSS receiver on your vessel or site network.
→ Details & download
Tutorials & Videos
3 articles
Tutorial
Sidescan Basics I
An introduction to sidescan sonar — how it works, what it measures, and how to interpret the imagery.
→ Read
Tutorial
Sidescan Basics II
A deeper look at sidescan sonar operations, towfish geometry, range selection, and survey planning.
→ Read
Video
The History and Importance of Hydrography
A lecture by Charles Brennan tracing the history and ongoing importance of hydrographic surveying.
→ Watch
Technical Notes
2 articles
Technical note
Multibeam Backscatter Grazing Angle
How grazing angle affects multibeam backscatter response, and what it means for multispectral analysis.
→ Read
Technical note
Stop Using DGPS!
Why DGPS is no longer the right choice for positioning in hydrographic surveys, and what to use instead.
→ Read