rad2tb2

Contents: Description, Arguments, Usage, Examples, Sub-Functions, Related Functions, Source Supported Under Version: > 1.06 Current .dvrc Version: 1.24 Description General routine to convert spectral radiance to temperature in K Arguments and Return Values Arguments: A radiance array Return Value: A THEMIS brightness-temperature array of equal dimensions to the input Usage Syntax: rad2tb2(rad [, bandlist] [, lab1=BOOL][, lab2=BOOL][, tes=BOOL][, tes5=BOOL][, mtes=BOOL][, themis=BOOL][, aster=BOOL][, tims=BOOL][, modis=BOOL][, max_emiss=VAL][,temp_rad_path=STRING) UNITS: For spectrometers units the are W cm-2 sr-1 /cm-1 For broadband radiometers the units are W cm-2 sr-1 micron-1) Temperature array returned is in same order as wavelength or wavenumber of instrument (e.g. ascending wavenumber or wavelength) rad - radiance value or array to convert to temperature bandlist - choose the bands to work with (e.g. 1//3//7//9), must be concatenated (cat) in the x direction Default instrument is THEMIS [lab1=1][tes=1], etc - specifies which instrument max_emiss - Set emissivity to value other than 1.0 (default) temp_rad_path - Custom path to temperature radiance lookup table...overwrites all instrument choices. Example usage and return values usage: temp = rad4rad(radiance, [lab1=1][lab2][tes][tes5][mtes][themis][aster][tims][modis][max_emiss]) Input 1 radiance and optional instrument (default is THEMIS) Returns temp[1,1,nbands] or: temp = rad2tb2(rad_array, [themis=1][aster=1][etc]) Input array of radiances and instrument: rad_array[nx, ny] Returns temp[nx,ny,nbands] or: temp = rad2tb2(rad_array, [themis=1][aster=1][etc])) Input array of radiances in nbands: rad_array[nx, ny, nbands] Dimension of nbands must match instrument Returns temp[nx, ny, nbands] or: temp = rad2tb2(rad_array, bandlist, [themis=1][aster=1][etc])) Input array of radiances in partial set of 1 or more bands: rad_array[nx, ny, ibands] Broadband instruments only Dimension of ibands must match # of bands in bandlist Example: temp = rad2tb2(image, cat(3,5,7,x), themis=1) Returns temp[nx, ny, ibands] Note: Reads in appropriate radiance-to-temperature look-up table, THEMIS example: temp_rad = temp_rad_v4 Examples dv> themisrad 3x1x10 array of float, bsq format [120 bytes] 0.0007074865280 3.520273822e-05 6.778145689e-07 0.0007074865280 3.520273822e-05 6.778145689e-07 0.0008949434850 6.728538574e-05 2.183513288e-06 0.0009542651824 8.638389409e-05 3.581196324e-06 0.0009878946003 0.0001092176826 5.921106549e-06 0.0009852732765 0.0001304097968 8.954900295e-06 0.0009532152908 0.0001462386135 1.225004416e-05 0.0009090195526 0.0001566047868 1.532734495e-05 0.0008534883964 0.0001634948858 1.846490886e-05 0.0006775726215 0.0001648367615 2.590118493e-05 dv> T=rad2tb2(themisrad,themis=1) ./themis/lib/dav_lib/library/script_files/instrument_parameters/temp_rad_v4: VICAR bsq image: 11x561x1, 32 bits 3x1x10 array of float, bsq format [120 bytes] 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000 300.0000000 210.0000000 150.0000000

DavinciWiki Mini-Nav Bar Contents Functions Function Categories Common Procedures Glossary Download Davinci Change Log News Mailing List Contact Developers davinci-dev [AT] mars.asu.edu All other topics See navigation on the left Major Sub-Functions dim read interp cat make_band Related Functions thm.themis_emissivity thm.emiss2rad thm.rad2tb tb2rad tb2rad2 spectral_tools.dvrc rad2tb2() Recent Library Changes Change Log Created On: 07-29-2010 Modified On: 04-09-2014