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Alt
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RADAR Altimeter
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Microwave pulse used to measure altitude from satellite to Earth's
surface, useful for determining the ocean's height
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PAN
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Panchromatic
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Provides grayscale images, wavelength region 400 - 700 nm
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RIR
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Red-Near-Infrared
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Has a minimum of a red (680 nm) and near-infrared (~800 nm) channel, for
vegetation monitoring with
NDVI
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Red
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Red
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Has at least one channel near 680 nm
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SAR-C
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C-Band Synthetic Aperture RADAR
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SAR systems use multiple looks along the flight direction to improve the
resolution by using the RADAR return Doppler shift at each position.
RADAR return strength is dependent on the surface roughness relative to the
wavelength and the electrical characteristics (dielectric constant, which is
the electrical energy that is stored, absorbed, and conducted by the
surface). C-Band wavelengths are about 3-8 cm.
See the
Jet Propulsion Laboratory SAR site for more information about SAR.
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SAR-K
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K-Band SAR
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K-band wavelengths are about 1-2 cm
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SAR-L
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L-Band SAR
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L-band wavelengths are about 15-30 cm
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SAR-P
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P-Band SAR
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P-band wavelengths are about 30-100 cm
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SAR-S
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S-Band SAR
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S-band wavelengths are about 7-15 cm
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SAR-X
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X-Band SAR
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X-band wavelengths are about 2-4 cm
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SAR-Q
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Q-Band SAR
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Q-band wavelengths are about 1 cm
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SAR-W
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W-Band SAR
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W-band wavelengths are about 0.3 cm
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SWIR
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Short-Wave Infrared
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At least one channel in the range 1300-3000 nm
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TIR
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Thermal Infrared
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At least one channel in the range 3000+ nm
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VIS
|
Visible
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Multiple channels in the visible portion of the electromagnetic spectrum
(400-700 nm)
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VNIR
|
Visible-Near-Infrared
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Multiple channels in the visible through near-infrared portion of
the electromagnetic spectrum
(400-1300 nm)
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