ITP43 Overview

Deployment Location: 10/8/2010, 01:00 UTC at 76° 42.9’N, 135° 11.7’W

Last Location: 2/10/2011, 23:00 UTC at 74° 26.5’ N, 143° 12.9’ W

Duration: 126 days

Distance Traveled: 1287 km

Number of profiles: 253 in 126 days

Other instruments: AOFB 21, IMB 2010-F, O-buoy

ITP 43 was deployed on a 2.45 m thick ice floe in the Beaufort Sea as part of the Beaufort Gyre Observing System (BGOS) during the JOIS 2010 cruise on the CCGS Louis S. St. Laurent. On the same icefloe, a Naval Postgraduate School Arctic Ocean Flux Buoy (AOFB 21), a US Army Cold Regions Research and Engineering Laboratory (CRREL) Ice Mass Balance Buoy (IMB 2010-F), and an autonomous atmospheric chemistry buoy (O-Buoy 2) were also installed. The ITP included a dissolved oxygen sensor and operated on a standard sampling schedule of 2 one-way profiles between 7 and 760 m depth each day.

ITP 43, IMB (barely visible), O-buoy, and AOFB

The second and final Ice-Based Observatory deployed during JOIS 2010 shortly after installation consisting of (from left to right): ITP 43, IMB (barely visible), O-buoy, and AOFB. (Rick Kirshfield)