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MODIS Airborne Simulator (MAS)

FLIGHT SUMMARY INFORMATION

Flight Track Map
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Flight: 98-069
Date: 27 May 1998
Location: Alaska / Arctic Ocean
Deployment: FIRE-ACE
Principal Investigator: King (NASA GSFC)
Additional Sensors: AirMISR, AMPR, CLS, MIR, HIS, SSFR

Data Evaluation
Overall quality is good

Processing Information
Level-1B Data in HDF format is available
Flight Line Summary
Spectral Band Configuration
Spectral Response Function Table

Browse Imagery
Flight Tracks: 19
Scanlines: 90477

Browse Imagery Table
Click a Flight Track number to view a quicklook image
Lat/Lon ranges are for the BEG-END scanline nadir pixels
Flight
Track
Time Span
(GMT)
Heading
(Deg)
Lat Range
(Deg North)
Lon Range
(Deg West)
Length
(scanlines)
Altitude
(meters)
1 20:36-20:58 335 67.24-69.55 150.14-153.40 8405 ~20000
2 20:58-21:21 332 69.56-71.82 153.39-157.48 8394 ~20000
3 21:24-21:26 130 71.96-71.82 157.03-156.49 735 ~20000
4 21:27-21:28 196 71.70-71.56 156.35-156.48 505 ~20000
5 21:30-21:36 243 71.44-71.16 156.98-158.76 2106 ~20000
6 21:36-21:53 245 71.16-70.32 158.84-164.01 6265 ~20000
7 21:57-22:19 348 70.26-72.66 163.43-165.38 7984 ~20000
8 22:19-22:40 346 72.66-75.01 165.37-167.87 7977 ~20000
9 22:40-23:00 1 75.07-77.27 167.93-167.93 7236 ~20000
10 23:06-23:28 181 77.51-75.01 167.94-167.95 8189 ~20000
11 23:29-23:53 148 74.91-72.54 167.65-162.57 8973 ~20000
12 23:53-23:55 149 72.53-72.40 162.66-162.40 493 ~20000
13 23:55-23:59 146 72.40-72.01 162.38-161.53 1520 ~20000
14 00:00-00:18 111 71.95-71.14 161.14-155.28 6636 ~20000
15 00:19-00:20 149 71.07-70.94 155.15-154.93 479 ~20000
16 00:20-00:30 152 70.91-69.93 154.87-153.38 3606 ~20000
17 00:31-00:45 154 69.83-68.44 153.21-151.37 5088 ~20000
18 00:45-00:58 156 68.44-67.02 151.37-149.74 5094 ~20000
19 00:58-01:00 158 67.00-66.77 149.74-149.50 792 ~20000
View all Quicklooks in sequence
Flight Summary Report

Author: Dr. Michael King
Mission Scientist: Dr. Michael King
ER-2 Pilot: Jan Nystrom
Takeoff: 2010 (UTC)
Landing: 0140 (UTC)
Duration: 5:30 (h:mm)

Objective and Summary:

  • Overfly the ARM site and open water West of Barrow, flying roughly parallel to the coast, then continue on to SHEBA (7631.5'N, 16756.03'W) and fly two ground tracks of 260km in length with North-South heading.
  • Overfly SHEBA (7631.5'N, 16756.03'W) and fly two ground tracks of 260km in length with North-South heading.
  • Return flight flown parallel to NOAA-14 ground track (heading 327.54).

Coordinations:

  • F-14 satellite (2112 UTC)
  • NOAA-14 satellite (2349 UTC)

Key Flight Legs:

  • The ER-2 take-off was delayed by 70 minutes in order to match the NOAA-14 overpass time on the return leg.
  • After overflying the ARM site at point 1 (7119.37'N, 15634.9'W), the ER-2 flew a SW flight line off shore and paralleling the coast to a location of about 70N, 163W. The aircraft then flew Northward to point 2 (7500'N, 16756.03'W) to begin two North-South overpasses over the SHEBA ice station (point 2 to point 3 and back to point 2). Each flight leg was 260km in length. After returning to point 2, the aircraft flew a 380km leg at a heading of 327.54 to parallel the NOAA-14 flight track. The return leg overflew the ARM site enroute back to Ft. Wainwright.
  • The AirMISR was turned on for 6 acquisitions: over the ARM site, on the coastal flight leg, twice over SHEBA, on the NOAA-flight leg, and once again over the ARM site on the return. The AirMISR operated at the following times with pilot notes regarding observed clouds:
    • 2112-2135 (ARM site - low thin scattered clouds)
    • 2137-2146 UTC (Coastal leg - scattered broken)
    • 2250-2259 UTC (SHEBA - overcast multiple layers)
    • 2311-2320 UTC (SHEBA - overcast)
    • 2345-2354 UTC (NOAA-14 - broken clouds)
    • 0010-0019 UTC (ARM - overcast)

Pilot Report:

  • The ER-2 pilot reported broken clouds over the coastal leg with some clear sky to the Western end of the leg, and possibly to the beginning of the leg. Multilayer clouds were reported during the SHEBA overpass.

Meteorology:

  • The ship reported freezing rain, cloud layers at 2-3.5 and 4.5-5.5km, with some cirrus at 9km. Winds at the surface were 20 kts from the East with a surface temperature of -5C. The surface high pressure system moved East near the Canadian Islands. The upper air ridge over the Beaufort Sea weakened slightly, but is still minimizing cloud cover in the Beaufort Sea. Surface and upper level winds were forecast to be Southerly at both Barrow and SHEBA.

Instrument Status:

  • AirMISR (Airborne Multi-angle Imaging Spectroradiometer): runs 1-4 collected all 9 look angles, run 5 data gathered at all angles but only three (+70.5, + 60, +45.6) with correct angles, run 6 failed
  • AMPR (Advanced Microwave Precipitation Radiometer): Worked well
  • CLS (Cloud Lidar System): Worked well
  • HIS (High-resolution Interferometer Sounder): Worked well
  • MAS (MODIS Airborne Simulator): Worked well
  • MIR (Millimeter-wave Imaging Radiometer): Worked well
  • SSFR (Solar Spectral Flux Radiometer): Worked well

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Flight 98-069

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Sample Imagery
Click image for full resolution
Track #7
Arctic Ocean
Click to load the full resolution image Flight Direction Indicator
R: 2.13µm
G: 0.95µm
B: 0.65µm

Sample Imagery
Click image for full resolution
Track #8
Arctic Ocean
Click to load the full resolution image Flight Direction Indicator
R: 2.13µm
G: 0.95µm
B: 0.65µm