i have downloaded MODIS Data for fog estimation for the whole month of December 2014 from laads website. The files i received are 90 for mod09 and 180 for mod03 for the same period. how do i relate which Geo-location file (mod03) is related to its mod09 file? can anyone tell? i have been trying to run a batch process using MRTSwath tool for which i have to create a parameter file for all the files. i have tried to select Geo-location file but i am unable to relate which mod03 goes with which mod09.
The reason that you have twice as many MOD03 files as you have MOD09 files is that you have both night and day versions of MOD03, while only day-time versions of MOD09.
As for relating the correct MOD03-files to your MOD09 files, you have to look at the timestamp in the filenames. Usually, a MOD03 file is name along these lines: MOD03.TYYYYJJJ.HHMM.005.XXXXXXXXXXXXX.hdf
As such, what you have to make sure matches is the YYYYJJJ.HHMM-part, which is your acquisition date and time. The time-label denoted as a bunch of Xs in my example should be disregarded and potentially deleted, as it only causes confusing for most users.