MODIS Airborne Simulator (MAS)

CAMPAIGN SUMMARY INFORMATION

Winter Cloud Experiment Dates: 23 January - 13 February 1997 Location: Upper Midwest, Great Lakes, New England, & Canada Principal Investigators: Dr. Paul Menzel (UWisc) Additional Sensors: Camera (RC-10), CPL, NAST-I, & S-HIS Objective: This campaign was designed to improve remote detection of clouds over snow and ice fields, in addition to snow and ice fields through clear skies.
Processing Information Flights Processed: 10 of 10 Total Flight Tracks: Total Scanlines: Level-1B Version: #2 Calibration Type: Final Calibration Version: WINCE ARC 1.0 Temperature Adjustment: None Status: Level-1B Data in HDF format is available Noted Irregularities
Spectral Information Spectral Band Configuration Spectral Response Function Table
Level-1B Data Distribution Level 1 / Atmosphere Archive and Distribution System (LAADS) NASA Distributive Active Archive Centers (DAACs)
WINCE Missions Click on a Track Map to view a particular mission January 1997 28 Jan 1997 Flight: 97-041 29 Jan 1997 Flight: 97-042 30 Jan 1997 Flight: 97-043 February 1997 02 Feb 1997 Flight: 97-044 06 Feb 1997 Flight: 97-045 08 Feb 1997 Flight: 97-046 09 Feb 1997 Flight: 97-047 10 Feb 1997 Flight: 97-048 12 Feb 1997 Flight: 97-049 13 Feb 1997 Flight: 97-050
Related Web Sites Official WINCE Home Page CPL Home Page NAST-I Home Page S-HIS Home Page NASA Airborne Science Program
Noted Irregularities When the plane comes out of a steep roll into a straight and level flight track it may take several seconds for the MAS instrument to fully stabilize. This could cause some smearing of data at the very beginning of a few flight lines, generally affecting the first 20 scanlines or so. (EXAMPLE) First sample in almost all flights is corrupted. It is believed that this was caused by a faulty DDX board. The problem was rectified after the WINCE deployment. (EXAMPLE) During many flights there was a loss of LN2 pressure in the port 4 dewar. Occassionally this problem was evident in the port 3 dewar as well. This results in rather noisy IR and thermal IR data in many flightlines. Many flights showed pronounced and excessive 400 Htz noise patterns in the data sets. (EXAMPLE 1) (EXAMPLE 2)

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• Last Updated: March 21, 2024