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NASA/GPM Radar Assets
Tropical Ocean/Global Atmosphere (TOGA) C-band
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TOGA is a C-band Doppler adar that has been deployed numerous times on both
land and sea, including
TOGA/COARE,
TRMM/LBA (1999),
NAMMA (2006),
and more recently
DYNAMO.
TOGA operates at a frequency between 5600 and 5650 MHz with 250 kW nominal power. It can run multiple pulse widths: 0.5, 0.8, 1.0 or 2.0 microseconds with a PRF from 250 to 2000 Hz. TOGA's antenna is a 2.44 meter solid metal parabolic dish with a beam width of 1.55 degrees. TOGA can operate in PPI full, PPI Sector, and RHI modes with a maximum angular velocity of 18 deg/s. TOGA is currently deployed on Wallops Island next to NASA's SPANDAR radar and is used for both range support and to provide pseudo-profiler measurements. [Latitude: 37.854949N, Longitude: -75.512666W] |
Latest TOGA Imagery
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The figures to the right show the a pseudo-profiler view of TOGA data taken
at both 60 and 78 degrees elevation. The abscissa is azimuth and the ordinate
is height. The left most figure is reflectivity and the rightmost figure is
radial velocity.
The figure below shows a time height cross-section of reflectivity from the 60 degree scan. The reflectivity shown here is the mean annular reflectivity from each scan. |
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