SNPP/VIIRS and NOAA/VIIRS

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emanuele_bohm
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SNPP/VIIRS and NOAA/VIIRS

by emanuele_bohm » Tue Sep 12, 2023 8:31 am America/New_York

What is the planned update of NRT L2 data of VIIRS that now only reaches 2023-03-01? MODIS/AQUA for example is already up to date until 2023-08-01 (since Aug 26th, 2023)
Thanks and regards,
Emanuele Böhm

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OB ODPS - towens
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Re: SNPP/VIIRS and NOAA/VIIRS

by OB ODPS - towens » Wed Sep 13, 2023 9:47 am America/New_York

We are working on the refined calibration. The 2022 Hunga-Tonga volcanic eruption introduced some complexities to the process. When we have the calibration ready there will a short reprocessing of 2022 -2023.

Tommy

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Re: SNPP/VIIRS and NOAA/VIIRS

by emanuele_bohm » Wed Oct 04, 2023 5:05 am America/New_York

Thank you Tommy!
I see that now SNPP-VIIRS is consolidated until 9/1/2023 do you have an update for when
NOAA20-VIIRS that is now consolidated only until 3/1/2023 will be completed?
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Emanuele Böhm

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Re: SNPP/VIIRS and NOAA/VIIRS

by OB ODPS - towens » Wed Oct 04, 2023 6:46 am America/New_York

They are working on the new calibration now, so it should be soon.

Tommy

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Re: SNPP/VIIRS and NOAA/VIIRS

by OB ODPS - towens » Tue Oct 10, 2023 2:14 pm America/New_York

Upon further review, we have decided that the current JPSS1 VIIRS calibration remains valid and the refined processing out to 2023-09-01 is under way. JPSS2 calibration is still under review.

Tommy

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Re: SNPP/VIIRS and NOAA/VIIRS

by oo_processing » Tue Oct 10, 2023 2:38 pm America/New_York

Shall I update to a certain OCSSW tag to get the new calibration work? Mine is currently V2023.3

Best,
Yuyuan

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Re: SNPP/VIIRS and NOAA/VIIRS

by OB ODPS - towens » Tue Oct 10, 2023 3:24 pm America/New_York

The LUTs are not tied to a particular tag. You want to run the update_luts program to get the latest LUTs for viirsn.

See https://seadas.gsfc.nasa.gov/help-8.3.0/processors/ProcessUpdateLuts.html

Tommy

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Re: SNPP/VIIRS and NOAA/VIIRS

by emanuele_bohm » Wed Nov 29, 2023 2:46 am America/New_York

OB ODPS - towens wrote: Wed Oct 04, 2023 6:46 am America/New_York They are working on the new calibration now, so it should be soon.

Tommy
Greetings,

Currently these are the latest consolidated VIIRS data:
SNPP_VIIRS.20230901T235400.L2.OC.nc
JPSS1_VIIRS.20230901T231800.L2.OC.nc
Do you know when more recent (non NRT) L2 granules will be made available on your repository?

Best regards,
Emanuele Böhm
Copernicus Marine OCTAC Deputy leader and Service manager

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Re: SNPP/VIIRS and NOAA/VIIRS

by OB ODPS - towens » Fri Dec 22, 2023 9:51 am America/New_York

We processed both SNPP and J1 L2 out to Dec 1 2023 yesterday.
Where are you checking that you only see Sept 01?

Tommy

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