Cruise - 2007 Dispatches
Calendar
Dispatch 10, August 5, 2007
By Luc Rainville
Looking for ITP-1
In 2005, Rick Krishfield and John Kemp (senior Engineering Assistant at WHOI) found a great thick ice floe to deploy the second ice-tethered profiler, ITP-1.The first one, ITP-2, was deployed the year before. Don't ask. The ice was great and appropriately enough, the melt ponds on the floe the shape of a nice smiling face, so they named it Camp Smiley. They installed the ITP-1 with its yellow float right in the middle of the floe (as the nose of the smiley), hoping that it would stay solidly stuck in the the ice as it travels around the Beaufort Gyre.
The location was perfect, but unfortunately a software error occurred and the ITP had to be disabled - it stopped profiling the upper ocean in January 2007. It has been still valiantly called home and relayed its position ever since. Because it still contains interesting data and might be re-used, and it is currently located very close to our cruise track, we decided to try to recover it. ITPs send their data and positions via Iridium satellite phone once a day (more information on ITPs can be found here). We have been tracking the position of the buoy, and we knew it had to be closed. As communications via email are always delayed and complicated, we arranged for Mary-Louise Timmermans, a WHOI involved in the a few projects of this expedition but who stayed on Cape Cod, MA, to give us a call with the position as soon as the ITP would communicate it.
Just after dinner on Sunday, Kris Newhall and Rick Krishfield got on the helicopter with pilot Christopher Swannell, and they took off for the site just after I talked to Mary-Louise on the ship's satellite phone. The communication was a little broken, but we got the coordinates (already a few hours old by then). After a 30 minutes of searching, they spotted "Camp Smiley". They landed and marked the site with a big red flag and radar reflector so that it would be easier to find tomorrow or in the following days. We couldn't retrieve it right away since the fog was rolling in, and tomorrow morning is a big day: first mooring recovery is happening in the morning! Hopefully it will go smoothly and we will recover the ITP-1 soon. But the Arctic is hard to predict...
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