Working with multiple tiles - best practice?

Optical Toolbox
#1

Hi everybody,

I was wondering what’s the best practice to work with multiple tiles of L2A images?

I would like to extract all layers of multiple L2A images (many dates) as GeoTIFF for a area of interest (AOI) which is partly covered by 4 different tiles. Before the product format changed (somewhen in september?) it was easier for me, because the AOI was covered by one single product.

So what I tried to do right now is:
1.) L1C → sen2Cor → L2A for all tiles and dates
2.) Resample all L2A tiles to 10m resolution
3.) Create a mosaic of the 4 tiles ( SNAP was complaining about “multi-size product” even though I resample in advance) for each date
4.) Extract AOI by subsetting each mosaic
5.) Export as GeoTIFF (same error appeared like in step 3, did not happen in a earlier version of SNAP)

Is there any better/faster solution and does anybody experienced similar problems with SNAP (newest version) complaining about “multi-size products” even though resampling was done?

Thanks a lot!

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#2

I’m still having trouble to find a efficient way to process and combine multiple L1C tiles from the same orbit & date to create one single multi layer L2A GeoTIFF image. I would be very glad if somebody can tell me how to do that with SNAP?

#3

The error you see in the mosaic is probably the same error as in the subset operation (SNAP-686).

I’ve mentioned a workaround recently:

We are working on this issue.

#4

Thanks for your response, saving it first as BEAM-DIMAP and then export to GeoTIFF worked.

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