P-3 Orion - WFF 05/14/19

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Flight Number: 
2019 OIB Science Flight #22
Payload Configuration: 
Operation IceBridge
Nav Data Collected: 
Total Flight Time: 
7.9 hours
Flight Segments: 
Start:05/14/19 10:25 Z Finish:05/14/19 18:20 Z
Flight Time:7.9 hours
Log Number:19P017PI:Joseph MacGregor
Funding Source:Bruce Tagg - NASA - SMD - ESD Airborne Science Program
Purpose of Flight:Science
Flight Hour Summary: 
Flight Hours Approved in SOFRS250
Total Used216.3
Total Remaining33.7
19P017 Flight Reports
Date Flt # Purpose of Flight Duration Running Total Hours Remaining Miles Flown
03/26/19#2053: 2019 OIB ATFCheck0.90.9249.10
03/27/19#2059: 2019 OIB PTF-LaserCheck2.33.2246.80
03/28/19#2061: 2019 OIB PTF-RadarCheck3.26.4243.60
04/01/19#2068: 2019 OIB WFF-BGTL Transit FlightTransit6.913.3236.72458
04/03/19#2070: 2019 OIB Science Flight #1Science7.620.9229.11938
04/05/19#2072: 2019 OIB Science Flight #2Science7.728.6221.41910
04/06/19#2073: 2019 OIB Science Flight #3Science7.235.8214.22000
04/08/19#2075: 2019 OIB Science Flight #4Science6.942.7207.31780
04/09/19#2076: 2019 OIB Science Flight #5Science7.850.5199.52045
04/10/19#2081: 2019 OIB Science Flight #6Science10.160.6189.42702
04/11/19#2082: BGSF-BGTL TransitTransit2.262.8187.2696
04/12/19#2083: 2019 OIB Science Flight #7Science7.2701802109
04/15/19#2086: 2019 OIB Science Flight #8Science4.874.8175.21243
04/16/19#2087: 2019 OIB Science Flight #9Science7.682.4167.62036
04/17/19#2088: 2019 OIB Science Flight #10Science7.790.1159.91937
04/18/19#2090: 2019 OIB Science Flight #11Science7.897.9152.12008
04/19/19#2091: 2019 OIB Science Flight #12Science7.6105.5144.52104
04/20/19#2092: 2019 OIB Science Flight #13Science6.9112.4137.60
04/22/19#2094: 2019 OIB Science Flight #14Science6.61191311867
04/23/19#2099: 2019 OIB Science Flight #15Science7.7126.7123.31979
04/25/19#2102: 2019 OIB BGTL-KBGR Transit FlightTransit6.2132.9117.10
04/26/19 KBGR to BGSF TransitTransit5.7138.6111.40
05/05/192019 OIB Science Flight #16Science7.8146.4103.60
05/06/192019 OIB Science Flight #17Science8.4154.895.20
05/07/192019 OIB Science Flight #18Science8.5163.386.70
05/08/192019 OIB Science Flight #19Science8171.378.70
05/12/192019 OIB Science Flight #20Science9180.369.70
05/13/192019 OIB Science Flight #21Science7187.362.70
05/14/192019 OIB Science Flight #22Science7.9195.254.80
05/15/192019 OIB Science Flight #23Science8.3203.546.50
05/16/192019 OIB Science Flight #24Science6.3209.840.20
05/17/192019 OIB Transit Transit6.2216340
05/17/192019 OIB Transit Transit0.3216.333.70

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 - P-3 Orion - WFF 05/14/19 Science Report

Mission Summary: 

Mission: Umanaq B (priority:high)

This mission is designed (along with Umanaq A) to refly the 2012 Umanaq coast-parallel grid with a pair of interlaced missions. This mission by itself reoccupies a grid spaced at 10 km near the coast, widening to 20 km upstream. The two flights together establish a grid at half this spacing. We also refly a pair of 2012 lines over the Disko Island ice cap, and another 2016 line over the Nuussuaq Peninsula. For 2019 we replace ICESat-1 line 0419 with ICESat-2 line A0719 (beam 1L), which is occupied by the spacecraft on 15 May 2019. 

The decision regarding which mission to fly today was a straightforward one.  Southeast and central Greenland were completely covered in clouds and/or fog, as was southwest Greenland.  This left only two high-priority missions along the central west coast available.  One of those, Jakobshavn 02,  was in an area with rather strong katabatic winds (40+ knots on the open ice sheet, much higher in the valleys) and associated turbulence, while those winds moderated to the north, leaving this mission in reasonably smooth air.  In the event, we experienced clear skies except for a few clouds high above us at times, and light to occasionally moderate turbulence at the southwestern corner of our grid lines and in the lee of canyon walls.

We observed surface melt, with partial refreezing, all along the ice sheet margin today.  This included the northernmost section near Upernavik, at 72.6 deg N.  This appears to be a consequence of strong and persistent katabatics over the central west coast of Greenland for much of the past two weeks, which abated over the past weekend (leading to the partial refreezing), but are picking up again yesterday and today.  A few days ago we observed much less surface melt in far southern Greenland, where katabatic flow has been weak or nonexistent recently.

Headwall SWIR did not operate today, but otherwise all instruments performed well. ATM estimates 100% altimetry data recovery.  We performed a ramp pass at 2000' prior to landing.
IceSat-2 RGT latencies (+/- indicates OIB surveyed after/before IceSat-2)
            0719   -14 hours
OIB has flown 9375 nautical miles (17363 km) of IceSat-2 ground tracks so far this season, including today.

Data volumes:
ATM: 131 Gb
CAMBOT: 245 Gb
FLIR: 16 Gb
KT19: 12 Mb
MCoRDS: 2.068 Tb
Narrow Swath ATM: 177 Gb green
Narrow Swath ATM: 134 Gb IR
VNIR 60 Gb
Snow Radar: 1.377 Tb

total data collection time: 7.6 hrs