Command Line Batch Processing (GPT)

[manuelnolte]

Dear SNAP community!

I would like to automate my S2_2A image processing toolchain which includes:

1. resampling image to 10m
2. subsetting image to specific geographic region (field boundary)
3. using biophysical processor to create LAI map
4. exporting created LAI map as in GeoTIFF format.

Hence the parameters that vary in this process are input name, geographic region (wkt) and output.

So far I have created a graph and performed the process within SNAP with the batch processing tool, where for every field a generated x LAI maps with x S2_2A images.

Now I would like to fully automate this with gpt. I understand that with the unix script https://senbox.atlassian.net/wiki/spaces/SNAP/pages/70503475/Bulk+Processing+with+GPT from Marco Peters I can create individual individual parameter files for each field (specifying geographic region) and then creating a loop to call the source directory and parameter list for each field.

My question is: What changes need to be done and where (xml or unix script) in order to export the images as tif files? lai_graph.xml (2.4 KB)

[marpet]

I’m not sure if I understand your question, because you already use GeoTiff as ouput format.
Maybe you want seperate files for each band?
Then take a look at this post:

Split product bandwise into single GeoTiff files

I would like to share an example graph file which shows how to split a product into separate GeoTIFF files. Each GeoTIFF file will contain only one band. How this can be achieved is shown by the example of a Sentinel-2 product, but the approach can be adapted to other products. The example reads a Sentinel-2 L1C product, resamples it to a common resolution and then splits and writes each specified band. Only the bands B1 and B2 are considered in the graph. But it can easily be extended to the…