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Rick Krishfield (right) and Kris Newhall with ITP on a sled.

Rick Krishfield (right) and Kris Newhall with ITP on a sled.
Rick Krishfield (right) and Kris Newhall with ITP on a sled.
Rick Krishfield (right) and Kris Newhall with ITP on a sled.
Rick Krishfield (right) and Kris Newhall with ITP on a sled.
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72029
Linder, Christopher
Rick Krishfield (right) and Kris Newhall with ITP on a sled.
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04/19/2007
graphics/PD1/cl_20070419_npeo07_itpprep_109.jpg
Image Of the Day caption:
WHOI research associate Rick Krishfield and engineering assistant Kris Newhall take part of an ice-tethered profiler (ITP) for a sled ride between a warehouse--where they tested and prepped it--and outdoor storage at the airport in Resolute Bay, Canada. A key element of WHOI's contribution to a multi-institutional Arctic observing network is the ITP, which was developed by Krishfield and WHOI oceanographer John Toole. The ITP climbs up and down a mooring string, detecting the temperature, salinity, and oxygen content at various points in the water.
Image Of the Day repeat caption:
WHOI engineers Rick Krishfield (right) and Kris Newhall take part of an ice-tethered profiler (ITP) for a sled ride in Resolute Bay, Canada, before deploying it on an Arctic Ocean ice floe. This yellow surface buoy sits atop the ice, with a mooring line descending into the ocean. An instrument moves up and down the line, measuring water temperature, salinity, and sometimes oxygen content at various depths, as the floe drifts across the ocean (see video). Developed by Krishfield and WHOI oceanographer John Toole, ITPs have been key instruments for a multi-institutional Arctic observing network that has detected impacts from climate change in the region.
Photo by Chris Linder
© Woods Hole Oceanographic Institution
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