Sentinel 2B SeaDAS with blank Rrs

[vc2021]

Hello again,

I successfully processed Sentinel 2A files (Seadas NIR and MUMM schemes) using the command line. The processing completes for Sentinel 2B files, but does not output any Rrs data.

Is this a common problem or just me?

Thanks,

Victoria

[OB SeaDAS - xuanyang02]

Are you using V2022.0 of OCSSW? What does your command line look like?

[vc2021]

Sorry for the delay. Thank you for your response!

I am now trying to process level1 S2B and 2A from the command line and new Seadas version 8.3.0.
OCSSW is V2022.3, and I have the processor packages.

Inputting the manifest.safe files to the GUI, I am receiving the following error for both sensors:
/Users/Victoria/ocssw/bin/ocssw_runner: line 23: 68277 Segmentation fault: 11 $*
An output file is produced, but is un-openable.

Do I need to alter anything to process them successfully from the GUI? Thank you for any assistance!

Victoria

[OB SeaDAS - xuanyang02]

You don't need to alter anything if you want to do l2gen on GUI with default values. However, if you want to do l2gen with "Multi-scattering with MUMM correction and MUMM NIR calculation", you need to choose "-10: Multi-scattering with MUMM correction and MUMM NIR calculation" for aer_opt* in the "Processing Options*" GUI.

Can you also share the name of your MSI_S2A(B) file, so we can try to replicate the error?

[vc2021]

Sure - thanks! I am processing with default values, and have tried multiple images, all receiving the same error. Here are two of them:

S2A_MSIL1C_20210615T102021_N0300_R065_T33VUF_20210615T111219.SAFE
S2B_MSIL1C_20220423T135109_N0400_R024_T20HPB_20220423T172721.SAFE

[OB SeaDAS - xuanyang02]

It turns out I am able to do l2gen on the MSI_S2A file you provided and created an L2 file with valid Rrs data

Screen Shot 2023-02-24 at 3.52.56 PM.png (336.5 KiB) Not viewed yet

[OB SeaDAS - xuanyang02]

l2gen on S2B_MSIL1C_20220423T135109_N0400_R024_T20HPB_20220423T172721.SAFE went through with no error, but I did get blank Rrs.

l2gen on S2B_MSIL1C_20180314T154009_N0206_R011_T18SVF_20180314T205107.SAFE went through with valid Rrs values.

[vc2021]

Hmm, interesting and good to know.
I'll see if I can resolve my error for the MSI_S2A file to process. Thank you for trying these images!

[niglas_cas]

Hi all,
ESA has updated the processing baseline for S2 MSI L1C products (https://sentinels.copernicus.eu/web/sentinel/technical-guides/sentinel-2-msi/processing-baseline) in January 2022. After PB 04.00 (Jan 2022), the dynamic range was shifted by a band-dependent constant, i.e. RADIO_ADD_OFFSET. I wonder if Seadas has considered the offset for data after PB 04.00?

Best,
Ming