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ITP 117 Overview

Deployment Location: 9/19/2019, 20:00 UTC at 80° 55.0’ N, 135° 31.9’ W

Recovered Location: 9/30/2020, 23:00 UTC at 71° 17.4’ N, 140° 13.6’ W

Duration: 377 days

Distance Travelled: 3028 km

Number of profiles: 205 in 103 days

Other instruments: S-IMB, TOP1

ITP117 was deployed on a 1.35 m ice floe in the Beaufort Sea on September 19, 2019 as part of the Beaufort Gyre Observing System (BGOS) during the JOIS 2019 cruise on the CCGS Louis S. St. Laurent. On the same icefloe, a prototype Tethered Ocean Profiler (TOP), and a US Army Cold Regions Research and Engineering Laboratory (CRREL) Seasonal Ice Mass Balance Buoy 3 was also installed. The ITP operated on a standard sampling schedule of 2 one-way profiles between 7 and 760 m depth each day and included a fixed SAMI PCO2 with ODO and PAR at 5 m depth.

The following year, the entire ITP with profiler was recovered during JOIS 2020.

Deployment

Recovery

Data Processing

Final Data

Ice-Based Observatory consisting of (from front to back) ITP 117, S-IMB, and TOP 1.  (Photo by Marshall Swartz)
Ice-Based Observatory consisting of (from front to back) ITP 117, S-IMB, and TOP 1. (Photo by Marshall Swartz)
ITP 117 is found drifting between icefloes the following year after being deployed.  (Photo by Dave Riedel)
ITP 117 is found drifting between icefloes the following year after being deployed. (Photo by Dave Riedel)
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