Changes between Version 2 and Version 3 of Processing/BadATMScans


Ignore:
Timestamp:
Aug 12, 2008 12:23:18 PM (11 years ago)
Author:
anee
Comment:

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  • Processing/BadATMScans

    v2 v3  
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    8  * Convert each raw ATM hdf file containing bad scan lines into bil files with headers by running 'azexhdf -h <hdf_filename.hdf> -Be <bil_filename.bil>' (note: you may wish to place the bil files into their own directory as if they are in the same dir as the hdf files, envi gets confused when opening the hdfs and displays garbage).
     8 * Convert each raw ATM hdf file containing bad scan lines into bil files with headers by running '''''azexhdf -h <hdf_filename.hdf> -Be <bil_filename.bil>''''' (note: you may wish to place the bil files into their own directory as if they are in the same dir as the hdf files, envi gets confused when opening the hdfs and displays garbage).
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    10  * Once the bil files have been created, navigate to the dir where the bils are and run atm_bad_scans.py. This will read band 7 of all the bil files and returns all the bad scan lines it finds (and writes these into a txt file with the same name as the bil file for easy copy and paste into the scripts). Currently these are just lines which contain significant numbers of 0 values or complete lines of high values. Other, harder to detect bad scans may exist so it is worth keeping an eye out for these.
     10 * Once the bil files have been created, navigate to the dir where the bils are and run '''''atm_bad_scans.py'''''. This will read band 7 of all the bil files and returns all the bad scan lines it finds (and writes these into a txt file with the same name as the bil file for easy copy and paste into the scripts). Currently these are just lines which contain significant numbers of 0 values or complete lines of high values. Other, harder to detect bad scans may exist so it is worth keeping an eye out for these.
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    1212 * Copy the bad scan line numbers from the txt files into the corresponding scripts after the -eds option. The lines numbers entered into the scripts will be marked as bad in the hdfs after running the scripts. These will still be visible when viewing the hdfs but will not be present in the level 3 GeoTIFFs.