OIB - P-3 Orion - WFF 04/18/19 Science Report

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Date: 
Thursday, April 18, 2019
Mission: 
OIB
Mission Location: 
Northeast Glaciers 02
Mission Summary: 
Mission: Northeast Glaciers 02
Priority: Medium
 
This mission reoccupies the centerlines of the Storstrømmen and L Bistrup Bræ glaciers, as well as an extension of the Northeast Greenland Ice Stream from Zachariæ Isstrøm and 79N Glaciers into the main ice sheet. This southward extension along the ice stream reflies the 2 May 2007 lines, and extends them 60 km farther up the trunk of the ice stream. We transit to and from the northeast region along a historical ATM line dating back to 1994, and along a Danish ground traverse route connecting NEEM and EGRIP core sites. Measurements collected during the ground traverse may permit enhanced interpretation of shallow radar data from OIB. For 2018, we conduct crossing passes over a subglacial site of interest, at the request of Jon Bamber.
 
A poor forecast for target regions in the Arctic Ocean and the northwest coast brought us again to northeast Greenland. We again conducted a ramp pass after take-off at 1,200 ft AGL. We encountered low clouds for the first 150 km or so, as expected, but then broke out into haze prior to reaching Camp Century. The survey continued through NEEM and EGRIP. We encountered ground fog in the lower reaches of L. Bistrup Bræ and Storstrømmen, which had not cleared out quite as much as we had expected. We could however faintly observe the odd rift that appears to lie near the collision between the two glaciers. After that, the skies cleared and the mission proceeded uneventfully. Clouds returned around Camp Century and we gained elevation to stay out of them, with intermittent returns to survey altitude. Headwall again required a restart. Otherwise, all instruments performed well and ATM estimates 95% altimetry recovery. We again performed two ramp passes at 1,600 and 1,200 ft AGL prior to landing at Thule AB.
 
Attached images:
1. Map of today's mission (John Sonntag / NASA)
2. CAMBOT image of EGRIP dome structure (Jeremy Harbeck / NASA)
3. Hazy view of the rift between floating ice at the downstream ends of L. Bistrup Bræ (left) and Storstrømmen (right) (Jeremy Harbeck/ NASA)
4. CAMBOT image of frozen supraglacial lake on Storstrømmen with a possible moulin on the right side (Jeremy Harbeck / NASA)
5. Large snow-filled crevasse field on Zachariæ Isstrøm with P-3 shadow (Jeremy Harbeck / NASA)
6. Drifted-over arcuate crevasses on Zachariæ Isstrøm (Joe MacGregor / NASA)
Images: 

CAMBOT image of EGRIP dome structure

Hazy view of the rift between floating ice at the downstream ends of L. Bistrup Bræ (left) and Storstrømmen (right)

CAMBOT image of frozen supraglacial lake on Storstrømmen with a possible moulin on the right side

Large snow-filled crevasse field on Zachariæ Isstrøm with P-3 shadow

Drifted-over arcuate crevasses on Zachariæ Isstrøm

Related Flight Report: 

P-3 Orion - WFF 04/19/19

Flight Number: 
#2091: 2019 OIB Science Flight #12
Payload Configuration: 
Operation IceBridge
Nav Data Collected: 
No
Total Flight Time: 
7.6 hours
Flight Segments: 
From:BGTLTo:BGTL
Start:04/19/19 10:50 Z Finish:04/19/19 18:28 Z
Flight Time:7.6 hours
Log Number:19P017PI:Joseph MacGregor
Funding Source:Bruce Tagg - NASA - SMD - ESD Airborne Science Program
Purpose of Flight:Science
Miles Flown:2104 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

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