1. UWBRAD Flight Plan Update July 2015 Assumptions Flight Window: Mid March to Late April 2015 Mission Time is from Calgary and Return (April 22, 2014 Letter from Borek) Total Mission Duration is 40 hours Assume 20 hours for transit and Calgary test flight Assume 20 hours for Survey Assume conservative 150 knots ground speed Include 1 check out flight to northern core sites Include Core Site Flight modified for Aquifer sites Include 1 optional sea ice / ice cap flight Include 1 options Dye 3/ western aquifer flight Optional flights also provide weather delay contingency for higher priority flights Need to allow for 1 circular flight with about 25 km radius about GISP/GRIP (not included here)

2. Essemble of UWBRAD flights Yellow: original core site plan Purple: core site plan modified to include aquifer Gold: Check out flight Red: Sea ice and Canadian Ice Caps Green: Dye3 and coastal aquifer Green dots: aquifer locations identified by J. Miller Background is Terra 4 km image from July 11, 2015

3. Sea ice extent (Green) April 2015

4. Checkout Flight (gold) Aquifer points (green) 1322 Km 710 nm 4.7 hrs

5. Ice Core and Aquifer (purple) Original Flight Line (yellow) 2110 Km 1138 nm 7.6 hr

6. Sea ice and Canadian Ice Caps Green: Icebridge Flights Spring 2014 Red: UWBRAD SeaIce/IceCap flight Background: Summer Terra 947 Km 523 nm 3.5 hr

7. Dye 3 flight and Western Aquifer 1189 Km 642 nm 4.3 hr

8. Summary FlightRange (km)Range (nm)Duration (150 knots) Priority and Comments Ice Core/Aquifer 210811387.6High – primary objective Check out13227144.8High – required to verify equipment SeaIce/IceCap9475113.4Med – Weather option for Thule. Could sub for check out flight Dye3/Western Aquifer 11896424.3Low – Primary interest is western aquifer Totals5566300520.0