AIRS

Frequently Asked Questions


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Q.  Is the new field spectral_clear_indicator a indicator for cloud-free FOV
in the new L1B AIRS product?

  

A.  The spectral_clear_indicator is one of the best clear indicator for
AIRS. Many people use this or slightly modified version of this
indicator to detect clear footprints. However there are indications
that some spectral clear footprints are contaminated by thin cirrus
and/or scattered low cloud. It is known that spectral_clear_indicator
works better over ocean footprints.

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