Data were collected on two cruises in the summer of 2014: from the R/V Ukpik in July (a), and from the Norseman II in September/October (b). Unaccompanied buoys deployed from the Ukpik encountered ice on August 31st (c). Red circles overlaid on Radarsat-2 SAR images taken within 1 day of deployments show approximate locations of measurements relative to ice. SAR from NIC, processed by CSTARS and curated by Luc Rainville.