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BANDPAK
The BANDPAK library of subroutines provides a rapid modeling
of broadband atmospheric emission and transmission. The software
package supports multiple gases, multiple bandpasses, multiple atmospheric
mass paths, accurate correction for
spectral line overlap, versatile observation geometry, and user
defined atmospheric layering and state definitions.
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BANDPAK achieves a combination of speed and accuracy through
the use of pre-computed tables of emissivity thus avoiding time
consuming integration over wavelength and by separating ray path
geometry calculations from integration of radiance. BANDPAK offers
tremendous flexibility and ease of use with features like
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variable/user defined layer spacing
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multiple gases and aerosol extinction
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simultaneous calculations of multiple channels
and multiple atmospheric paths
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beginning and ending path integrations at any
layer along path
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forward model options
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NLTE capability
BANDPAK has been a key algorithm in the CLAES, LIMS,
SABER, and HALOE data processing permitting rapid, reliable and
accurate calculations. The software has been used extensively in
feasibility studies such as CRISTA, cooling rate calculations, verification
of instrument design specifications, and many other applications.
For a complete description of BANDPAK, see the article
entitled "BANDPAK: Algorithms for Modeling Broadband Transmission
and Radiance," J. Quant. Spectrosc. Radiat. Transfer Vol.52,
No. 5, pp. 581-599, 1994."
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