Processing Landsat 8 images with L2gen

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feedback12345
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Processing Landsat 8 images with L2gen

by feedback12345 » Mon Jun 05, 2023 1:40 pm America/New_York

MTL.txt file not accepted
I'm using a Landsat 8 file with L2gen in SeaDAS 8.1.0, and I can't select my MTL.txt file as the ifile. It gives me a warning saying
"# # WARNING!!! file /Users/user/Desktop/LC080110312023052302T1-SC20230605154210/LC08_L2SP_011031_20230523_20230602_02_T1_MTL.txt is not a valid input mission: Mission=null"

It doesn't seem to me like the filepath has any spaces in it -- what else might be causing the problem?

OB.DAAC - SeanBailey
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Re: Processing Landsat 8 images with L2gen

by OB.DAAC - SeanBailey » Mon Jun 05, 2023 9:08 pm America/New_York

You seem to be attempting to process a L2 file. This will not work, as l2gen expects a L1 file as input.

Sean

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Re: Processing Landsat 8 images with L2gen

by feedback12345 » Tue Jun 06, 2023 10:38 am America/New_York

Ah, thank you so much Sean!
What OCs take L2 data as input?

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Re: Processing Landsat 8 images with L2gen

by feedback12345 » Tue Jun 06, 2023 8:47 pm America/New_York

My lab is having an issue with using the new collection 2 data -- we're trying to look at historical data using collection 1 level 2, but can't access the data set names on earth explorer any more. Is there any way we can still request the collection 1 level 2 data?
We're having issues with exporting the collection 2 level 1 and level 2 data that are on earth explorer now, and can't request many of the attributes (many of the Landsat 2 level products on ESPA).

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Re: Processing Landsat 8 images with L2gen

by OB SeaDAS - xuanyang02 » Tue Jun 20, 2023 1:21 pm America/New_York

l2gen takes an L1 file as input -- LC08_L1TP_011031_20230523_20230602_02_T1/LC08_L1TP_011031_20230523_20230602_02_T1_MTL.txt

SeaDAS can display LC08_L2SP_011031_20230523_20230602_02_T1 and the L2 file created by l2gen.

Landsat Collection 1 data and products are no longer available to download from the USGS as of December 30, 2022, according to https://www.usgs.gov/landsat-missions/landsat-collection-1

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