Convert THEMIS emissivity to radiance

Contents: Description, Procedure, Functions Used, Related Functions Description This procedure is designed to take THEMIS emissivity and maximum brightness temperature data and convert them to radiance data. NOTE: The example is shown for 10 bands, if less bands are present, like in a nighttime image, you can still safely perform these steps. Procedure Read in the emissivity and maximum brightness temperature data. For this example, the data was saved in hdf format. The output of Convert THEMIS radiance to emissivity could be directly saved using this file type. dv>a=read("I10418002.emiss_btemp.hdf) struct, 2 elements emiss: 577x1852x10 array of float, bsq format [42,744,160 bytes] maxbtemp: 577x1852x1 array of float, bsq format [4,274,416 bytes] Convert the emissivity and maximum brightness temperature to radiance. dv>b=thm.emiss2rad(a,ignore=0) ./themis/calib/temp_rad_v4: VICAR bsq image: 11x561x1, 32 bits 577x1852x10 array of float, bsq format [42,744,160 bytes] NOTE: the null value for the image after this will be zero because the null values for emissivity and maximum brighness temperature are also zero.

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 Functions Used thm.emiss2rad Related Procedures Standard THEMIS IR Processing Convert THEMIS radiance to emissivity