OIB - Gulfstream V - JSC 10/27/19 Science Report

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Date: 
Sunday, October 27, 2019
Mission: 
OIB
Mission Location: 
Antarctic Fall 2019: Hobart, Australia
Mission Summary: 

Flight Report: 10/27/19
 
OUTLOOK FOR TOMORROW: Conditions are clearing towards the east of Wilkes Land where we flew today, so there are a few options, 2 high priority land ice, and one medium priority sea ice mission over Casey Station which will likely be possible.
 
Mission: Holmes-Frost 02
Priority: High
 
IceBridge completed the high priority land ice mission Holmes-Frost 02. This mission was chosen because again katabatic flow off the ice sheet created clear skies in this area, optimal for data collection. The mission was centrally located in this clear region, with clouds to both the east and the west. Although skies were clear we did encounter some mild to moderate turbulence across the lower portions of the three glaciers. The worst turbulence occurred on the eastern side of the Frost Glacier channel because its location in the lee of the katabatics from higher terrain to the east, a set up that generally creates turbulence.
 
This mission is of importance because it surveys the lower portions of the Holmes, De Haven and Frost Glaciers on a 10-km grid and was specifically designed to supplement earlier airborne measurements collected by the ICECAP Project. Some glaciers in East Antarctica are actually close to a state of mass balance, however Frost glacier is one which is thinning and losing mass. This is likely due the fact that it is grounded well below sea level. Radar and gravity data collected today will provide more knowledge on the bed underneath these glaciers so we can understand why they are retreating here compared to elsewhere.
 
Moderately strong head winds encountered on the southbound transit leg created some fuel concerns and thus we had to shorten our mission slightly in order to make it back to Hobart with enough fuel. The final survey line of the mission, the IS-2 track, a gravity tie line across the Holmes Glacier ice shelf, was cut from the mission.
 
During flight, all instruments performed well with 100% data collection. However, before takeoff a bad hard drive was ‘as cross as a frog in a sock’ (Aussie slang for sounding angry) and was discovered in the CReSIS server array. The problem was fixed quickly by the CReSIS team and we were able to launch this mission with only a slight 30 minute delay.
 
ICESat-2 RGT latencies (+/- indicates OIB surveyed after/before ICESat-2):
No IS-2 today due to fuel concerns
 
Data volumes collected during today’s mission, which consisted of 2.8 hours of data collection:
ATM:  46 Gb
CAMBOT: 85 Gb
FLIR:  6 Gb
Narrow Swath ATM:  69 Gb green
Narrow Swath ATM: 65 Gb IR
VNIR: 23 Gb
SWIR:  34 Gb
Snow Radar: 626  Gb
MCoRDS: 336 Gb
Gravity: 4.5 Gb

Related Flight Report: 

Gulfstream V - JSC 10/26/19 - 10/27/19

Flight Number: 
GV-55
Payload Configuration: 
OIB
Nav Data Collected: 
No
Total Flight Time: 
10.4 hours
Flight Segments: 
From:YMHBTo:YMHB
Start:10/26/19 22:24 Z Finish:10/27/19 08:45 Z
Flight Time:10.4 hours
Log Number:205003PI:Joseph MacGregor
Funding Source:Bruce Tagg - NASA - SMD - ESD Airborne Science Program
Purpose of Flight:Science
Miles Flown:4500 miles
Flight Hour Summary: 
205003
Flight Hours Approved in SOFRS350
Total Used248.4
Total Remaining101.6
205003 Flight Reports
Date Flt # Purpose of Flight Duration Running Total Hours Remaining Miles Flown
10/17/19GV-48Science1.91.9348.1800
10/17/19GV-49Science3.25.1344.91400
10/19/19GV-50Transit8.213.3336.73600
10/21/19 - 10/22/19GV-51Transit5.318.6331.42300
10/22/19GV-52Transit725.6324.43100
10/23/19 - 10/24/19GV-53Science10.235.8314.24400
10/24/19 - 10/25/19GV-54Science10.145.9304.14400
10/26/19 - 10/27/19GV-55Science10.456.3293.74500
10/27/19 - 10/28/19GV-56Science10.266.5283.54400
10/28/19 - 10/29/19GV-57Science10.176.6273.44400
10/29/19 - 10/30/19GV-58Science1086.6263.44400
10/31/19 - 11/01/19GV-59Science10.296.8253.24400
11/02/19 - 11/03/19GV-60Science10.6107.4242.64600
11/03/19 - 11/04/19GV-61Science9.61172334200
11/04/19 - 11/05/19GV-62Science10.3127.3222.74500
11/05/19 - 11/06/19GV-63Science10.2137.5212.54400
11/07/19 - 11/08/19GV-64Science10147.5202.54400
11/08/19 - 11/09/19GV-65Science9.51571934100
11/09/19 - 11/10/19GV-66Science10.2167.2182.84400
11/13/19 - 11/14/19GV-67Science10.2177.4172.64400
11/14/19 - 11/15/19GV-68Science10.4187.8162.24500
11/16/19 - 11/17/19GV-69Science9.9197.7152.34300
11/17/19 - 11/18/19GV-70Science9.9207.6142.44300
11/18/19 - 11/19/19GV-71Science10.3217.9132.14500
11/19/19 - 11/20/19GV-72Science10.4228.3121.74500
11/20/19 - 11/21/19GV-73Science3.5231.8118.21500
11/25/19GV-74Ferry5.7237.5112.52500
11/26/19GV-75Ferry10.9248.4101.64700

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.