C2RCC batch processing

snap
#1

Hi,
I am trying (without success!) to perform the following steps as part of a batch process using GPT:

  1. Read in file
  2. subsample all bands to 10 m
  3. do c2rcc processing
  4. use multi size mosaic to select the bands I want (conc_tsm, iop_bpart and iop_bwit) for a reduced area (I guess I could use subset instead to do this?)
  5. output results to geotiff.
    Unfortunately I can only seem to get steps 1-3 to work within the xml file.
    I think it is something to do with the c2rcc step since I can get the whole process to run if I replace step 3) with somethings simpler (such as subset to just extract a single band).
    The error I get when I run the batch file is:
    Undefined symbol ‘c2rcc_flags.Valid_PE’.
    As a work around I have managed to update the xml file to output a dim file after the c2rcc step and then I can manually complete the process in SNAP (which works fine but it would be great to get it all working in the batch).
    Any pointers would be really appreciated!
    Thanks
#2

Hi,

You don’t need to use the multi-size mosaic. You have resampled the data already to a common resolution in step 2. You can use the default mosaic.

Can you show your graph XML files you use? I tried mosaicking with an already resampled product and it worked. I used only one as input but should be the same as with multiple products.

#3

Thanks so much, after I posted I tried replacing the multi size mosaic step with subset and managed to get it to work, I will also have a go with mosaic as it would be nice to be able to combine multiple tiles to one output (although finding a way to automate which files should be combined-I guess based on the date information in the filename-may make this more trouble than it’s worth - I am mainly interested in small areas for a large number of timesteps rather than having a large area for a small number of timesteps), I have attached my working xml.graph4.xml (2.0 KB)

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