ITP 91 Overview
Deployment Location: 9/5/2015, 10:45 UTC at 82° 44.5’ N, 124° 30.9’ E
Recovered Location: 7/11/2017, 18:59 UTC at 79° 54.4’ N, 15° 6.3’ E
Duration: 675 days
Distance Travelled: 5063 km
Number of profiles: 328 in 163 days
Other instruments: O-Buoy, surface drifter
ITP91 was deployed on a 1.10 m thick ice floe in the Transpolar Drift on September 5, 2015 in collaboration with the Nansen and Amundsen Basins Observational System (NABOS) project from the Russian Research Vessel Treshnikov. On the same icefloe, an autonomous atmospheric chemistry buoy (O-Buoy) , and surface drifter were also installed. The ITP operated on a standard sampling schedule of 2 one-way profiles between 7 and 760 m depth each day.
The surface package with a few meters of wire rope still attached was recovered by Quark Expeditions on July 14, 2017 just off the north coast of Svalbard, Norway.