[Feature]: Add AIRS based spectral diagnostics #1011
Description
Is your feature request related to a problem?
This new diagnostic was proposed by @XiangleiHuang. We will collaborate with his group at the University of Michigan to incorporate a new version of AIRS data and supports selected longwave band variables from EAM/EAMxx.
Describe the solution you'd like
No response
Describe alternatives you've considered
No response
Additional context
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