MODIS Airborne Simulator (MAS)

CAMPAIGN SUMMARY INFORMATION

Smoke, Clouds, and Radiation - Brazil Dates: 13 August - 11 September 1995 Location: Central Brazil Principal Investigators: Dr. Yoram Kaufman (NASA GSFC) Additional Sensors: AVIRIS & CLS Objective: Characterize the the relationship between sulfate particles and cloud reflective properties. Study the impact of biomass burning and urban/industrial aerosol on the atmosphere and climate by measuring the properties of urban and industrial pollution dominated by sulfate particles.
Processing Information Flights Processed: 12 of 12 Total Flight Tracks: Total Scanlines: Level-1B Version: #9 Calibration Type: Final Calibration Version: SCAR-B_King 1.0 Temperature Adjustment: 24C Status: Level-1B Data in HDF format is available. Noted Irregularities
Spectral Information Spectral Band Configuration Spectral Response Function Table
Level-1B Data Distribution Langley Research Center (LaRC) Level 1 / Atmosphere Archive and Distribution System (LAADS) NASA Distributive Active Archive Centers (DAACs)
SCAR-B Missions Click on a Track Map to view a particular mission August 1995 13 Aug 1995 Flight: 95-158 16 Aug 1995 Flight: 95-160 18 Aug 1995 Flight: 95-161 20 Aug 1995 Flight: 95-162 23 Aug 1995 Flight: 95-163 25 Aug 1995 Flight: 95-164 27 Aug 1995 Flight: 95-165 30 Aug 1995 Flight: 95-166 September 1995 01 Sep 1995 Flight: 95-167 04 Sep 1995 Flight: 95-168 07 Sep 1995 Flight: 95-169 11 Sep 1995 Flight: 95-170
Related Web Sites Official SCAR-B Home Page AVIRIS Home Page CLS Home Page NASA Airborne Science Program
Noted Irregularities There were a number of MAS port 4 (channels 42-50) failures due to mechanical problems with the instrument, affecting most missions during SCAR-B. Data gaps in the port 4 bands have missing calibration coefficients and the Calibrated Radiance data is set to 0. 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. There is an anomaly affecting the 3.9µm, 3.7µm, and 1.6µm channels that runs the entire length of a flight line, located at pixels 477-478 (note: pixel range is 1-716). This was due to periodic electrical noise from the insturment being passed to the data recording system.

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• Last Updated: March 21, 2024