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| Data: First SAR image |
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First Quad-Pol UAVSAR Image September 27, 2007
Click here to display full resolution TIF image (222 Mbytes)
(If 222 Mbytes is too large for your browser, right click on link and 'save link as' to your hard disk)
UAVSAR collected this quad polarized image data on September 27, 2007 in a flight over the Rosamond
Lake Bed in California (on a heading of 170 deg and at an altitude of 9150 m), where there is an array
of trihedral corner reflectors used for calibration. The radar was operated in its polarimetric mode and
transmitted an 80 MHz bandwidth signal giving a range resolution of 1.66 m. The image covers an area 11 km wide by 87 km long. Data was received in
the 12 to 8 bit Block Floating Point Quantization (BFPQ) compression mode. Shown (weighted for color contrast) is the HH polarization
in red, HV in green, and VV in blue. The beginning of the
image is North of the town of Mojave, CA.
Visible further down in the
image is the Rosamond Lake bed and the array of NASA corner reflectors (as well as the reflectors
for other systems) which appear as bright point like features against the radar dark background of the
dry lake bed. They are each separated by about 600m. The image ends just south of the city of Palmdale, Ca. This image is in radar slant plane coordinates
and thus will appear somewhat distorted relative to standard optical imagery or maps.
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