Record Search Query: [Personnel: Last_Name='STEVENS', Middle_Name='B.', First_Name='TYLER']
MODIS Rapid Response System
Entry ID: MODIS-RRS
Abstract: Atlantic - THORpex Observing System Test (ATOST) is part of an international
research program to accelerate improvements in the accuracy of 1 to 14 day
weather forcasts. A number of additional air, ground, and water observation
platforms are selected daily from forecast flow patterns. The ATOST campaign is
the first to attempt real-time adaptive control over several ... paltforms at short
The MODIS Airborne Simulator (MAS) is an airborne scanning spectrometer that
acquires high spatial resolution imagery of cloud and surface features from its
vantage point on-board a NASA ER-2 high-altitude research aircraft.
Data acquired by the MAS are helping to define, develop, and test algorithms
for the Moderate Resolution Imaging Spectroradiometer (MODIS), a key sensor of
NASA's Earth Observing System (EOS). The MODIS program will emphasize the use
of remotely sensed data to monitor variation in environmental conditions for
assessing both natural and human-induced global change.
The MAS spectrometer acquires high spatial resolution imagery in the range of
0.55 to 14.3 microns. A total of 50 spectral bands are available in this range.
Pre-1995 the digitizer was configured for each mission to record a pre-selected
group of 12 bands during the flight. For most of these missions the digitizer
was configured to record four 10-bit channels and seven 8-bit channels.
A 50-channel digitizer which records all 50 spectral bands at 12 bit resolution
became operational in January 1995.
The MAS spectrometer is mated to a scanner sub-assembly which collects image
data with an IFOV of 2.5 mrad, giving a ground resolution of 50 meters from
20000 meters altitude, and a cross track scan width of 85.92 degrees.
ISO Topic Category
Digital Elevation Models, National Mapping Program Technical
Instructions, Data Users Guide 5, U.S. Geological Survey, Second
Printing (Revised), Reston, Virginia, 1990.
Creation and Review Dates