P-3 Orion - WFF 04/09/19

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Flight Number: 
#2076: 2019 OIB Science Flight #5
Payload Configuration: 
Operation IceBridge
Nav Data Collected: 
No
Total Flight Time: 
7.8 hours
Flight Segments: 
From:BGTLTo:BGTL
Start:04/09/19 10:52 Z Finish:04/09/19 18:40 Z
Flight Time:7.8 hours
Log Number:19P017PI:Joseph MacGregor
Funding Source:Bruce Tagg - NASA - SMD - ESD Airborne Science Program
Purpose of Flight:Science
Miles Flown:2045 miles
Flight Hour Summary: 
19P017
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 04/09/19 Science Report

Mission: 
OIB
Mission Summary: 

Mission: North Bed Gap 01
Priority: High
 
This new mission for 2019 addresses gaps in bed measurements identified by Mathieu Morlighem on the northern and northeastern flank of the ice sheet. We also fly two short flowlines in the vicinity of Steensby and Ryder Glaciers at the request of MacGregor et al, with the purpose of recovering thickness, and possibly layering, in an area with the best surface exposure of pre-Holocene ice in all of Greenland. This data would enable future modeling there to support a possible “horizontal ice core” effort. Finally, we fly a line across the margin of the Hiawatha ice lobe and across a river channel in its proglacial area, at the request of Larry Smith.
 
A mixed forecast today across the region led us to head northeast today and cover some new ground. To our mild surprise, this mission turned out to be  a near-perfect match for the conditions we encountered. Clouds west of the divide dissipated as we descended to begin the survey of bed gaps in north and northeast Greenland. The bed gap lines proceeded uneventfully in MCoRDS swath mode and then we proceeded to fly two flowlines, terminating in Warming Land, in MCoRDS nadir profiling mode to offer the best opportunity to detecting internal layering. Due to thin snow cover there, we were also able to observe the dusty layering associated with Last Glacial Period ice at the ice margin. We then transited over Steensby and Petermann Glaciers to perform a short survey perpendicular to the ice margin in Inglefield Land west of Hiawatha Glacier in support of Larry Smith’s hydrology project. During this transit, clouds returned and we climbed above them near Petermann Glacier. They cleared in time for us to spot the Keybird wreck again, but returned over Humboldt Glacier and dissipated again just in time for the Inglefield Land transect. Headwall continues to have minor freezing issues and the same Applanix IMU malfunctioned later on than yesterday, but ATM has a good lead on a resolution. Otherwise, all instruments performed well and ATM reports 99% laser altimetry collection. Due to low ceilings at Thule, we did not perform a ramp pass.
 
Attached images:

  1. Map of today’s mission (John Sonntag / NASA)
  2. The bed gaps filled by today’s mission (white line) through highs in bed elevation uncertainty, where red saturates at 500 meters uncertainty (Joe MacGregor / NASA)
  3. Snow-filled crevasse field upstream of Ryder Glacier (Jeremy Harbeck / NASA)
  4. Margin of the Greenland Ice Sheet abutting Warming Land (Jeremy Harbeck / NASA)
  5. Contrast-stretched view of the margin of the Greenland Ice Sheet abutting Warming Land, just east of Steensby Glacier. Brown layers signify dusty ice from colder intervals (stadials) during the Last Glacial Period, and this outcrop represents a location with potentially some of the oldest ice exposed at the surface in Greenland. While the colors in this image are adjusted, these layers were visible to the naked eye. (Joe MacGregor / NASA)
Images: 

The bed gaps filled by today’s mission (white line) through highs in bed elevation uncertainty, where red saturates at 500 meters uncertainty

Snow-filled crevasse field upstream of Ryder Glacier

Margin of the Greenland Ice Sheet abutting Warming Land

Contrast-stretched view of the margin of the Greenland Ice Sheet abutting Warming Land, just east of Steensby Glacier. Brown layers signify dusty ice from colder intervals (stadials) during the Last Glacial Period, and this outcrop represents a location w