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HU-25C Guardian 10/13/15

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Flight Number: 
OIB2015 Arctic Jakobshavn Eqip Store
Payload Configuration: 
Nav Data Collected: 
Total Flight Time: 
2.9 hours
Flight Segments: 
Start:10/13/15 10:04 Z Finish:10/13/15 12:56 Z
Flight Time:2.9 hours
Log Number:16F002PI:John Woods
Funding Source:Thomas Wagner - NASA - SMD - ESD Cryospheric Science
Purpose of Flight:Science
Comments:OIB completed the Jakobshavn Eqip Store mission this morning. Currently checking weather and waiting to determine if a second sortie is feasible this afternoon.
Flight Hour Summary: 
Flight Hours Approved in SOFRS100
Flight Hours Previously Approved 67.4
Total Used32.665.3
Total Remaining 2.1
16F002 Flight Reports
Date Flt # Purpose of Flight Duration Running Total Hours Remaining Miles Flown
10/05/15OIB2015 Arctic Sea Ice CentralScience3.63.663.8
10/05/15OIB2015 Arctic Sea Ice EastScience3.87.460
10/06/15OIB2015 Arctic Ice-Sat2 NorthScience411.456
10/07/15OIB2015 Arctic Transit Thule to KangerlussuaqTransit213.454
10/08/15OIB2015 Arctic Southwest Coastal AScience3.817.250.2
10/08/15OIB2015 Arctic Thomas-Jakobshavn 01Science3.720.946.5
10/09/15OIB2015 Arctic Umanaq BScience3.924.842.6
10/13/15OIB2015 Arctic Jakobshavn Eqip StoreScience2.927.739.7
10/13/15OIB2015 Arctic Southeast Coastal AScience3.631.336.1
10/18/15OIB2015 Arctic Southeast Coastal BScience4.135.432
10/19/15OIB2015 Arctic Helheim-KangerdlugussuaqScience3.739.128.3
10/19/15OIB2015 Arctic Helheim-Kangerdlugussuaq Gap BScience3.94324.4
10/20/15OIB2015 Arctic Jakobshavn Mop-UpScience3.746.720.7
10/20/15OIB2015 Arctic Southwest Coastal BScience3.750.417
10/21/15OIB2015 Arctic Southwest Coastal CScience3.453.813.6
10/21/15OIB2015 Arctic K-EGIG-SummitScience3.757.59.9
10/22/15OIB2015 Arctic Mopup SouthScience259.57.9
10/22/15OIB2015 Arctic Ferry BGSF-CYYRFerry2.261.75.7
10/23/15OIB2015 Arctic Ferry CYYR-KRICFerry3.3652.4
10/23/15OIB2015 Arctic Ferry CYYR-KRICFerry0.365.32.1
15F005 Flight Reports
Date Flt # Purpose of Flight Duration Running Total Hours Remaining Miles Flown
09/15/15OIB #1Check2.72.797.3
09/20/15OIB #2, 3, 4Ferry2.75.494.6
09/21/15OIB #2, 3, 4Ferry2.37.792.3
09/21/15OIB #2, 3, 4Ferry29.790.3
09/23/15OIB2015 Arctic North Central Gap 02Science3.913.686.4
09/24/15OIB2015 Arctic Northwest Coastal AScience3.717.382.7
09/25/15OIB2015 Arctic Northwest Coastal BScience3.821.178.9
09/28/15OIB2015 Arctic Sea Ice WestScience3.724.875.2
09/30/15OIB2015 Arctic North Central Gap 01Science3.928.771.3
09/30/15OIB2015 Arctic Zachariae-79NScience3.932.667.4

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.

Related Science Report: 

OIB - HU-25C Guardian 10/13/15 Science Report

Mission Summary: 

Mission: Falcon Jakobshavn-Eqip-Store (priority: medium)

This mission is identical to the Jakobshavn-Eqip-Store flight conducted for the last several years and last flown in Spring 2015, but with the centerlines of Store, Eqip Sermia, Kangilerngata Sermia, Sermeq Kujalleq, Rink, and Kagerdlugssup Glaciers removed.

After several successive days of weather scrubs, we experienced another challenging meteorological situation this morning.  During our 0630 weather briefing, most of southern Greenland was covered in cloud, much of it in several distinct layers.  The lower portion of the Jakobshavn basin was largely clear, except for some isolated cirrus clouds.  However the models indicated that this area too would deteriorate in short order as an incoming weather system pushed clouds into the sector.  We decided to launch this mission anyway, knowing we would probably lose the eastern lines of the mission to a stratus deck.  The weather we encountered was almost exactly what we expected.  The cirrus clouds over the lower basin indeed became more widespread as the morning wore on, and the stratus clouds to the east prevented our acquiring more than isolated pockets of science data there.  So we shortened the flight by removing the two easternmost lines.  Our sensors were able to punch through much of the high cirrus on the remaining lines, but we also encountered an unexpected low cloud layer in the southern portions of the lines, which was probably associated with the incoming weather system  For the shortened mission, we estimate that we successfully acquired data over 60% of the lines.

All instruments performed well today, with the exception of the cloudiness.

We conducted a ramp pass at 7000' MSL.

Data volumes:
DMS: 7.7 Gb
Narrow Swath ATM: 18 Gb
FLIR: 1.4 Gb

total data collection time: 2.7 hrs