User Manual - pancroma

Note that you must convert the calendar date into Ordinal date manually. ThePANCROMA TM help file includes a link to the NASA calculator for convertingcalendar days to ordinal days. Also note that although the computation wantsthe solar zenith angle, you must input the solar elevation angle. This is intendedas a slight convenience as the elevation angle is listed in the metadata file, notthe zenith angle. In this example the ordinal days are 237 and the solar elevationangle is 33.33 degrees.IMPORTANT NOTE: Be sure to input the solar elevation angle NOT the solarazimuth angle, which is also listed in the metadata file.The images below show a band file both before and after mask processing by theFive File Method. (Note that the image has both snow and clouds. Thealgorithm has successfully discriminated between the two.) An RGB rendering ofthe cloud mask gaps filled with a133