NetSurvey News

Winter has been here for about a week now but today is really pretty. Apologies for the quality but it is from my iPhone rather than a camera. Who wants to work in a town!!

Posted by Duncan Mallace at 10:47 | Permalink | Comments

We've just added in another 16TB of storage so I thought I'd upload a photo of our main storage farm. The Apple XRAIDs (the bottom ones) are configured directly to workstations via 4GB/sec fibre optic cables and the Promise Technology enclosures are connected via fibre optics to the Xserve which is in turn dual gigabyte bonded to the main gigabyte ethernet network around the office.

It make quite a bit of heat but isn't too noisy so it is actually heating part of the office at the moment. The thought of running an aircon when the outside temperature is -4 degs C was like throwing money away. We just need a better system to duct out the heat around the office more efficiently.

Posted by Duncan Mallace at 10:38 | Permalink | Comments

If you just want to calculate areas and do a bit of digitising then MapWindow GIS is great, mainly because it is free. There are also some nifty plugins to allow you to create shp files from csv and dxf files, plus image rubber banding. Check out www.mapwindow.org

Posted by Duncan Mallace at 15:35 | Permalink | Comments

I've just realised that we haven't put up any of the results from the Cornish Survey yet on the blog, so here is an image I made from the Fledermaus scene of our bathy data combined with the EA's topo LiDAR data around St Michael's Mount.

Posted by Duncan Mallace at 14:37 | Permalink | Comments

Mark and Andrew have been up in the Orkneys surveying for renewable energy firms the last two weeks. This was the first time we have had a chance to use the new RESON mounting bracket for our 7125-SVs. Apart from a few small design faults (bolt lengths, etc) it worked very well. As you can see from the photo the bracket is designed for both the 400 kHz and the 200kHz transmitters with just the 400 kHz shown. The receive array is broadband so it can listen in to both frequencies

Posted by Duncan Mallace at 09:32 | Permalink | Comments

Combining multibeam bathymetry and laser scanner data gives you the best of both worlds above and under the water. The best thing is that it is very simple to do an very cost effective. You can collect both at the same time or go for laser at low water and multibeam at highwater to get a bit of overlap. Other great applications are cliffs, bridges, beachfronts, basically anywhere you want seamless coastal zone data. Here's an image of one of the results.

Posted by Duncan Mallace at 16:59 | Permalink | Comments