P-3 Orion 04/30/18
| From: | BGSF | To: | BGSF | ||
|---|---|---|---|---|---|
| Start: | 04/30/18 10:42 Z | Finish: | 04/30/18 20:00 Z | ||
| Flight Time: | 9.3 hours | ||||
| Log Number: | 18P008 | PI: | Nathan Kurtz | ||
| Funding Source: | Bruce Tagg - NASA - SMD - ESD Airborne Science Program | ||||
| Purpose of Flight: | Science | ||||
| Comments: | This flight covered the Thomas-Jakobshavn 01 line - a baseline mission on this campaign. | ||||
| 18P008 | |
|---|---|
| Flight Hours Approved in SOFRS | 201.2 |
| Total Used | 190.4 |
| Total Remaining | 10.8 |
| 18P008 Flight Reports | ||||||
|---|---|---|---|---|---|---|
| Date | Flt # | Purpose of Flight | Duration | Running Total | Hours Remaining | Miles Flown |
| 03/13/18 | 2018 OIB Arctic -Airworthiness Test Flight | Other | 0.8 | 0.8 | 200.4 | |
| 03/14/18 | 2018 OIB Arctic -Project Test Flight - Laser | Other | 2.6 | 3.4 | 197.8 | |
| 03/15/18 | 2018 OIB Arctic -Project Test Flight - Radar | Other | 5.7 | 9.1 | 192.1 | |
| 03/18/18 | 2018 OIB Arctic -delta ATF | Other | 0.8 | 9.9 | 191.3 | |
| 03/20/18 | 2018 OIB Arctic -Transit to Thule | Transit | 7.9 | 17.8 | 183.4 | |
| 03/22/18 | 2018 OIB Arctic -Science #1 | Science | 7.8 | 25.6 | 175.6 | |
| 04/03/18 | 2018 OIB Arctic -Science #2 | Science | 7.9 | 33.5 | 167.7 | |
| 04/04/18 | 2018 OIB Arctic -Science #3 | Science | 8.1 | 41.6 | 159.6 | |
| 04/05/18 | 2018 OIB Arctic -Science #4 | Science | 8 | 49.6 | 151.6 | |
| 04/06/18 | 2018 OIB Arctic -Science #5 | Science | 8.8 | 58.4 | 142.8 | |
| 04/07/18 - 04/08/18 | 2018 OIB Arctic -Science #6 | Science | 8.1 | 66.5 | 134.7 | |
| 04/08/18 - 04/09/18 | 2018 OIB Arctic -Science #7 | Science | 8.3 | 74.8 | 126.4 | |
| 04/14/18 - 04/15/18 | 2018 OIB Arctic -Science #8 | Science | 7.7 | 82.5 | 118.7 | |
| 04/16/18 | 2018 OIB Arctic -Science #9 | Science | 8.2 | 90.7 | 110.5 | |
| 04/18/18 | 2018 OIB Arctic -Science #10 | Science | 8 | 98.7 | 102.5 | |
| 04/19/18 | 2018 OIB Arctic -Science #11 | Science | 7.7 | 106.4 | 94.8 | |
| 04/20/18 | 2018 OIB Arctic -Transit to Kanger | Transit | 4.2 | 110.6 | 90.6 | |
| 04/21/18 | 2018 OIB Arctic -Science #12 | Science | 8.1 | 118.7 | 82.5 | |
| 04/22/18 | 2018 OIB Arctic -Science #13 | Science | 6.5 | 125.2 | 76 | |
| 04/23/18 | 2018 OIB Arctic -Science #14 | Science | 8.2 | 133.4 | 67.8 | |
| 04/25/18 | 2018 OIB Arctic -Science #15 | Science | 7.7 | 141.1 | 60.1 | |
| 04/26/18 | 2018 OIB Arctic -Science #16 | Science | 8.8 | 149.9 | 51.3 | |
| 04/27/18 | 2018 OIB Arctic -Science #17 | Science | 8 | 157.9 | 43.3 | |
| 04/29/18 | 2018 OIB Arctic -Science #18 | Science | 8.3 | 166.2 | 35 | |
| 04/30/18 | 2018 OIB Arctic -Science #19 | Science | 9.3 | 175.5 | 25.7 | |
| 05/01/18 | 2018 OIB Arctic -Science #20 | Science | 7.4 | 182.9 | 18.3 | |
| 05/03/18 | 2018 OIB Arctic -Return Transit Leg #1 | Transit | 6.4 | 189.3 | 11.9 | |
| 05/03/18 | 2018 OIB Arctic -Return Transit Leg #2 | Transit | 0.6 | 189.9 | 11.3 | |
| 05/03/18 | 2018 OIB Arctic -Return Transit Leg #3 | Transit | 0.5 | 190.4 | 10.8 | |
Flight Reports began being entered into this system as of 2012 flights. If there were flights flown under an earlier log number the flight reports are not available online.
OIB - P-3 Orion 04/30/18 Science Report
Mission: Thomas-Jakobshavn 01
Priority: Baseline
This is a repeat of 2009, 2010, 2011, 2012, 2013 and 2014 IceBridge missions. Its purpose is to re- survey the highest-priority lines of the historical ATM 10-km Jakobshavn grid, the main flowline of Jakobshavn. It also extends that grid with a broader array of ICESat ground tracks over the larger Jakobshavn basin. Renamed in 2015 in honor of Robert H. Thomas.
A promising forecast for this mission, with outflow across the Ilulissat region, made for an easy choice today. Because of the less promising forecast for this region later in the week, we opted to fly a longer mission that included two additional ICESat lines upstream of the main set flown today. We flew along the fjord west of Kangerlussuaq for an additional couple of minutes to repeat the snow radar calibration performed yesterday. We were greeted with clear skies across Jakobshavn Isbræ, where we surveyed numerous ATM and ICESat lines, along with the central flowline. No significant clouds were encountered, and laser altimetry surveying was good all day. We spotted a couple of piles of rubble that we suspected to be due to drained subglacial lakes. We passed by a snow-covered Swiss Camp. No instrument issues were reported, and altimetry coverage was 100%. A ramp pass at 2000 ft was performed.
3. The complex southern shear margin of Jakobshavn Isbræ, with an ambiguous grounded-to-floating transition (Joe MacGregor / NASA)
4. The ice prow that separates the main trunk of Jakobshavn Isbræ from the now-stagnant outlet glacier to the north, also demarcating the iceberg supply (Joe MacGregor / NASA)
5. Ice rubble possibly due to drainage of a subglacial lake (Joe MacGregor / NASA)
6. Iceberg in Ilulissat fjord (Joe MacGregor / NASA)
