Naval Weapons Center Version Of The Atmospheric Transmittance Computer Code Lowtran Users Manual And Program Listing
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Author | : William M. Cornette |
Publisher | : |
Total Pages | : 65 |
Release | : 1977 |
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ISBN | : |
LOWTRAN is a FORTRAN computer program, developed at the U.S. Air Force Geophysics Laboratory (AFGL), which calculates the transmittance of the earth's atmosphere in the spectral region from 0.25 to 28.57 micrometers with 20 cm spectral resolution on a linear wavenumber scale. A choice of six atmosphere models covering seasonal and latitudinal variations from sea level to 100 km are available, in addition to a capability of allowing the user to input atmospheric profile or meteorological parameters of his own choosing. The program includes four aerosol models and permits either hazy or clear haze condition to be selected, in addition to the capability of selecting a particular visibility of the user's choosing. The model accounts for molecular absorption, molecular scattering, and aerosol extinction, plus atmospheric refraction and earth's curvature effects.
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Total Pages | : 1048 |
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Genre | : Science |
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Author | : |
Publisher | : |
Total Pages | : 480 |
Release | : 1983-11 |
Genre | : Science |
ISBN | : |
Author | : Warren L. Hatch |
Publisher | : |
Total Pages | : 398 |
Release | : 1988 |
Genre | : Climatology |
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Author | : |
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Total Pages | : 1150 |
Release | : 1985 |
Genre | : Government reports announcements & index |
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Author | : |
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Total Pages | : 568 |
Release | : 1994 |
Genre | : Aeronautics |
ISBN | : |
Author | : F. X. Kneizys |
Publisher | : |
Total Pages | : 0 |
Release | : 1988 |
Genre | : Atmospheric models |
ISBN | : |
LOWTRAN 7 is a low-resolution propagation model and computer code for predicting atmospheric transmittance and background radiance from 0 to 50,000 cm -1 at a resolution of 20 cm -1. The code is based on the LOWTRAN 6 (1983) model. Multiple scattered radiation has been added to the model as well as new molecular band model parameters and new ozone and molecular oxygen absorption parameters for the UV. Other modifications include a wind dependent desert model, new cirrus cloud models, and new cloud and rain models. The code also includes new representative (geographical and seasonal) atmospheric models and updated aerosol models with options to replace them with user-derived values. An improved extra-terrestrial solar source function is also included. Six modes of program execution are allowed with the new model and computer code for a given slant path geometry. This report contains a description to users for operating the LOWTRAN 7 computer code. It summarizes the capabilities of the new code, provides complete operating instructions as well as input and output from test cases for user validation. Also included are operating instructions for three programs that utilize LOWTRAN 7 output (plot, filter and scanning function programs)
Author | : Seibert Q. Duntley |
Publisher | : |
Total Pages | : 286 |
Release | : 1980 |
Genre | : Light |
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Author | : |
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Total Pages | : 92 |
Release | : 1979 |
Genre | : Detectors |
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Total Pages | : 976 |
Release | : 1985 |
Genre | : Government reports announcements & index |
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