Thanks. I'm interested how the strength of opinion (above and below) is on behaviour than in scientific knowledge or technical skills. Other responses...
Thank you.My own answer was: [INDENT=1]Stephen,[/INDENT][INDENT=1]What an interesting question! IÛªm going to ask my media sites that one![/INDENT][I...
Hi, Francis,Interesting that you use PPK when you're greater than 2km from a base; for our RTK, we have a low power transmission (0.5 Watt at the ante...
... And we have most of our Trigonometrical Pillars in the UK but we'll need the sun and stars offshore ...
FrancisH, post: 364367, member: 10211 wrote: Victor Hi, would like to know what your average differences in your depth readings for cross line interse...
I wonder if you can help me understand the situation?Living in the small island of Great Britain, our national mapping service provides 90 CORS so tha...
Very striking photographs.Could you add some explanations; what survey marks are you seeing and what are the significances?Thanks.
... and two from our vessel, Falcon Spirit; inside the cabin with a single beam echo sounder at the far window with the near student concentrating on ...
Yes, an interferometric system, such as Geoswath, does particularly well in shallow waters whereas the beam forming systems give better coverage in de...
Thank you, gentlemen (any ladies on here?).You may know that the GPS/ GRS80 model of the Earth has 0 degrees longitude some 100 metres from the origin...
Paul The Irishman, post: 359358, member: 262 wrote: So, welcome. Spent a few years working out of an office above a Hydrographic surveyors in Cork up ...
Stephen Johnson, post: 359297, member: 53 wrote: What format are the geographical coordinates in on the Benchmark/Wreck picture? Hello Stephen,They ...
Jim Frame, post: 359156, member: 10 wrote: I took this a few years ago on an antenna alignment job. I was set up about 300' from the tower at a point...
Coastlining by SBAS GPS, RTK GPS & geo-referenced photographs from a Topcon fixed wing drone
2013 cut Benchmark (in brass), mini side scan
Plymouth University's Falcon Spirit, MBES, microwave tide gauge
Scanning a hulk (an abandoned 'wreck') and a pre-1913 cut Benchmark
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