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Hi Tommy, Thanks for the help. I see on the Earthdata portal that the Temporal Extent is '2024-03-05 ongoing,' but when I query results in the Chesapeake Bay through the portal, there are no resulting granules: ED_Browser.PNG I also get no granules when running earthaccess on Python: EA_code.PNG Not...

Hello, I am trying to understand the changes that PACE OCI Level-2 AOP V3.0 has undergone. From OB.DAAC (https://oceancolor.gsfc.nasa.gov/data/reprocessing/V3.0/pace/), I have gathered that these are the key changes: 1.application of system vicarious calibration gains 2.correction for residual sensi...

Hello, I am trying to understand the processing undergone for the Level-2 PACE-OCI Spectral remote sensing reflectances product (OC_AOP) (Version 2, though V3 was recently released). As I understand it, this product provides Rrs in sr-1 units. What is the atmospheric correction algorithm used to gen...

Thanks all for the support. So the process to go from L1A to L2 includes two steps, each with ifile, ofile, and geofile: 1. calibrate_viirs create L1B : ifile=[VIIRSN.L1A.nc] l1bfile_mod = [VIIRSN.L1B.nc] (ofile and geofile are not valid params https://seadas.gsfc.nasa.gov/help-8.1.0/processors/Proc...

Hi Tommy, Thanks. So if I am understanding correctly, I can download the GEO file and use that as a parameter for l2gen? Do I still need to generate L1B with calibrate_viirs then? Can I just generate an l2 directly from l1a with a command like this: "l2gen ifile={l1a_file} ofile={output_name} g...

Hello, I know I have asked many l2gen questions in the past week, so thank you in advance for your patience. I am currently trying to run l2gen on L1A VIIRS-SNPP data (scene: SNPP_VIIRS.20230712T180000.L1A.nc ). I am starting by running calibrate_viirs on the L1A scene to generate L1B. To do this, I...

Hi Tommy, Ok, thank you! I have a bit of a confusing question regarding processing the L1B files. Since I am processing OLCI S3A/S3B, the L1B file is split into 21 separate .nc files for radiance (Oa01_radiance, Oa02_radiance,etc). L1b_files_list.PNG Is it recommended to run l2gen 21 times, once on ...

Hi Tommy, Thanks for reaching out! I appreciate your help. I've moved /common and /olci back under /share, and changed OCDATAROOT accordingly: os.environ['OCDATAROOT'] = '/panfs/ccds02/nobackup/people/slsmit34/Scripts/2023_2024/Jun2024_modernScripts/l2gen/ocssw/share' share_folder_updated.PNG Now wh...

Hello, I am having difficulty with running l2gen on an S3A OLCI scene due to errors with locating the parameter files. I've set the OCDATAROOT and OCVARROOT with the following: os.environ['OCDATAROOT'] = '/.../l2gen/ocssw' os.environ['OCVARROOT'] = '/.../l2gen/ocssw/var' And I am using subprocess to...

Hi Eric,
Thanks so much for your help. I do not see the python script that you mentioned. Did you include it as an attachment to your post?
Best,
Sami