OIB completed the high priority North Ellesemere 01 mission. This was a new mission, designed as part of OIB's multi-year dh/dt repeat strategy, and based both on the ATM surveys of the Canadian ice caps dating back to 1995, and to flightlines designed with Dave Burgess and Martin Sharp as part of a CSA/NASA agreement in 2014 and flown that same year. This mission concentrates on the northern Ellesmere ice field and on the Agassiz Ice Cap in east-central Ellesmere. For the northern ice field, we flew a historical ATM line traversing the ice from southwest to northeast plus centerlines of the major glaciers draining the ice field. We also flew a number of such glaciers on Agassiz, along with a pair of historical ATM lines.
 
The weather forecast over Ellesmere Island looked to be largely clear near the beginning of the flight but worsening (mainly in the north) later in the day. We elected to take the mission as it seemed likely we would still be able to get coverage over most of the lines. The weather was largely good, but with patches of scattered haze and clouds at times. This did not significantly impact the mission though we did miss some small areas and the lower portion of Yelverton Glacier line due to poor visibility. The FLIR window frosted over early during the transit and took some time to clear up which will impact the data quality. But overall the mission was good, with data collected over nearly the entire line.

Data volumes
ATM: T5:  27 Gb        T6:  120 Gb
FLIR:  14 Gb
Cambot: 31 Gb
KT19: 10 Mb
DMS: 62 Gb
Snow/Ku radar: 1.2 Tb
MCoRDS: 1.6 Tb
Accumulation radar:  1.3 Tb
Gravity: 3 Gb
data on: 1146
data off: 1738