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Autonomous Vertical Profiler succeeded in sending data via satellite to a notebook
Since last three years the scientists at this institute have been working on developing an Autonomous Vertical Profiler (AVP). AVPs traverse along the water column without the aid of a tether or a guiding mechanism, programmed to descend at a designated speed up to a defined depth and ascend slowly to the sea surface without power.
On 30 August 2010, the AVP was tested with a tether at the Tillari dam, Maharashtra to a depth of 30m (52m water depth). The programmed mission commanded the AVP to dive every hour and to beam back profiles of chlorophyll, turbidity, CTD and DO via Iridium satellite link, a commercial global mobile voice and data satellite communications network, back to a notebook on land. The system performed very well in high wind and continuous heavy rain conditions over a period of approx 24 hrs. See Chlorophyll profile in the picture below.
This was the first techno demonstration of its kind in India, and a precursor to what will be done in the sea near future.
The experiment was carried out by the following team:
Shivanand Prabhudesai, Nitin Dabholkar, Awneesh Dubey (PA), Mruga Dabholkar (PA), Antonio Mascarenhas, Gajanan Navelkar, Sanjeev Afzulpurkar, R. Madhan and Elgar Desa [Project Leader]
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