I'm trying to batch process MERIS imagery. I have full swath imagery and would like to subset the LIB imagery from command line before processing to L2. Is this possible?

I'd like to make a spatial subset from MERIS L1B Envisat N1 files. I'd like to specify lat/lon limits and extract only the data within this box.

I've used the command line version of mapproj to subset a larger MERIS L1B image. I'm able to view the output of command line mapproj in BEAM however this output is unable to be processed to L2 with the Case 2 regional processor. It seems that there is a problem at some level with the sub-setted and projected file. If I subset and project within the BEAM GUI and then process to L2 via command line, the output is fine.

I've placed my files on the brockmann ftp server under users-support/cmouw. Would it be possible to take a look and help me find where I'm going wrong?

Here are the commands I'm calling... I've also supplied an example L1B files I'm trying to subset, project and process to L2

mapproj.command mapproj_2_points_Mendota.xml
meris-case2_batch.sh -v request_file_GeoTIFF.xml

Thanks,
Colleen