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Instrument: IIR : Imaging Infrared Radiometer
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Associated Platforms
CALIPSO

Spectral/Frequency Information
Wavelength Keyword: Infrared > Reflected
Number Channels: 3
Spectral/Frequency Resolution: 0.6 µm - 1.0 µm

Related Data Sets
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Description
The Imaging Infrared Radiometer (IIR) instrument on CALIPSO is a three-channel
IIR is provided by CNES with algorithm development performed by the Institute
Pierre Simon Laplace (IPSL) in Paris.

The IIR a nadir-viewing, non-scanning imager having a 64 km by 64 km swath with
a pixel size of 1 km. The CALIOP beam is nominally aligned with the center of
the IIR image.

The instrument uses a single microbolometer detecter array, with a rotating
filter wheel providing measurements at three channels in the thermal infrared
window region at 8.7 mm, 10.5 mm, and 12.0 mm. These wavelengths were selected
to optimize joint CALIOP/IIR retrievals of cirrus cloud emissivity and particle
size.

For more information see:
http://www-calipso.larc.nasa.gov/about/payload.php#IIR

[Summary provided by NASA.]

Online Resources
http://www-calipso.larc.nasa.gov/about/payload.php#IIR

Instrument Logistics
Data Rate: 44 kbps
Instrument Owner: NASA