OLCI support disappeared?

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OLCI support disappeared?

by kudela » Tue Jul 18, 2017 10:55 pm America/New_York

I recently installed SeaDAS 7.4, and see that there is no support for downloading OLCI processors (it doesn't show up in the GUI). I understand that it was in 7.3.2, and that it was possible to process OLCI L1 to L2 data. Am I missing something, or was that removed from SeaDAS 7.4? I tried installing 7.3.2 instead to see if that would provide the processor, but it fails to find the code when I try simple things like "install_ocssw.py --git-branch=v7.3 --olci" (or the same with 7.4).

I thought it was still in Github but I haven't attempted to download/compile everything manually since I would prefer (for teaching) to be able to use the standard GUI interface, etc.



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OLCI support disappeared?

by gnwiii » Wed Jul 19, 2017 7:47 am America/New_York

You will need to compile with a bug fix (OLCI mapping offset) or just wait for the next update.

Here too, olci is missing from "Update OC Processors" in the GUI.  It is, however, present (and "works for me") in the command-line:
$ install_ocssw.py -h
Usage: install_ocssw.py [options]

  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -v, --verbose         Print more information while running
  -i INSTALL_DIR, --install-dir=INSTALL_DIR
                        destination directory for install. Defaults to
                        $OCSSWROOT or "$HOME/ocssw" if neither are given.
  -g GIT_BASE, --git-base=GIT_BASE
                        web location for the git repositories
  -b GIT_BRANCH, --git-branch=GIT_BRANCH
                        branch in the git repositories to checkout
  -a ARCH, --arch=ARCH  set system architecture (linux, linux_64,
  -s, --src             install source code
  -l LOCAL, --local=LOCAL
                        local directory containing previously downloaded
  -c, --clean           Do a clean install by deleting the install directory
                        first, if it exists
  --curl                use curl for download instead of wget
  --aquarius            install Aquarius files
  --avhrr               install AVHRR files
  --czcs                install CZCS files
  --goci                install GOCI files
  --hico                install HICO files
  --meris               install MERIS files
  --aqua                install MODIS Aqua files
  --terra               install MODIS Terra files
  --mos                 install MOS files
  --ocm1                install OCM1 files
  --ocm2                install OCM2 files
  --octs                install OCTS files
  --oli                 install Landsat 8 OLI files
  --olci                install Sentinel-3A OLCI files  <<<<<<<<<<<<
  --osmi                install OSMI files
  --seawifs             install SeaWiFS files
  --viirsn              install VIIRSN files
  --direct-broadcast    install direct broadcast files
  --eval                install evaluation sensor files

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OLCI support disappeared?

by OB.DAAC - SeanBailey » Wed Jul 19, 2017 8:11 am America/New_York

OLCI support in the OCSSW processing code hasn't gone away, but as you discovered, it is not listed in the GUI interface.
Manual installation with the install_ocssw.py script will work for both v7.3 (assuming you are updated to v7.3.2) and v7.4
If time permits, we may add the checkbox to the GUI with the v7.5 release.

BTW, the geolocation offset issue is really only a problem for processing inland water bodies with significant elevation.
The impact to ocean processing (and geolocation) is quite small...not a lot of terrain to correct there :wink:


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OLCI support disappeared?

by kudela » Thu Jul 20, 2017 12:51 am America/New_York

Thanks to both of you. I cleaned up some stuff, reinstalled 7.4, and got OLCI data to load. I then rebooted and started the GUI. However, when I point to the xfdumanifest.xml file as input in a downloaded ERR file, I get an error that it is not a valid input mission. I saw another post suggesting to use Oa1_radiance.nc, doesn't work either.

# # WARNING!!! file [path]/S3A_OL_1_ERR____20170617T173647_20170617T182112_20170618T220913_2665_019_041______LN1_O_NT_002.SEN3/Oa01_radiance.nc is not a valid input mission: Mission=null

Should I be starting l2gen some other way? Or does it need to be processed from command line only? Probably a naive question, and I assume there's some simple fix.

Thanks in advance.

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OLCI support disappeared?

by OB SeaDAS - dshea » Thu Jul 20, 2017 11:02 am America/New_York

the GUI does not support OLCI yet.  You have to use l2gen from the command line.

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OLCI support disappeared?

by zhigang » Sun Jul 23, 2017 2:29 am America/New_York

Now, as they said, the GUI hasn't support processing of OLCI. You should process OLCI in command-line mode like its installation.
For example, you can use 'l2gen ifile=xfdumanifest.xm ofile=.....'(see the help of l2gen) in terminal in Linux or Mac OS.


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