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Reprocessed MODIS Aqua data
Posted: Wed Oct 26, 2022 8:32 pm America/New_York
by oceanwatchcp
Hi there,
I am looking for the 2022 reprocessed as well as the previous version of MODIS Aqua data on daily and monthly resolutions to download. Where are the correct folders/what are the right pages/search for them, respectively?
Thank you,
Daisy
Re: Reprocessed MODIS Aqua data
Posted: Thu Oct 27, 2022 2:57 pm America/New_York
by OB ODPS - towens
The reprocessed data are available here:
https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-3%20Binned/Aqua-MODIS
https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-3%20Mapped/Aqua-MODIS
You may find some of the older version files there, but they are in the process of being deleted from the archive.
Tommy
Re: Reprocessed MODIS Aqua data
Posted: Thu Oct 27, 2022 3:13 pm America/New_York
by oceanwatchcp
Thank you Tommy.
How do I distinguish the newly reprocessed data files and the older ones?
Are the newly reprocessed data file names start with "AQUA_MODIS.20*" and the older version files start with "A20*"?
Daisy
Re: Reprocessed MODIS Aqua data
Posted: Thu Oct 27, 2022 3:25 pm America/New_York
by OB ODPS - towens
Yes the names differ as you described.
Tommy
Re: Reprocessed MODIS Aqua data
Posted: Thu Oct 27, 2022 3:29 pm America/New_York
by OB ODPS - towens
Both version of L3 map files are available through the OPeNDAP server. The old files are in the 3-digit day of year directories and the new files are in the 4-digit mmdd directories.
https://oceandata.sci.gsfc.nasa.gov/opendap/
Tommy
Re: Reprocessed MODIS Aqua data
Posted: Thu Oct 27, 2022 4:20 pm America/New_York
by oceanwatchcp
Thank you, this is very helpful!
For the old version, besides daily data, I couldn't find the monthly or 8-day data in the 3-digit day of year directories. Are they still available somewhere?
Re: Reprocessed MODIS Aqua data
Posted: Thu Oct 27, 2022 4:35 pm America/New_York
by OB ODPS - towens
They are archived in the directory of the starting data day of the multiday bin. So, you would need to look in 001, 032, 060, 091 for the monthly files etc. during non-leap years, and 001, 032, 061, 092 etc. in leap years.
Tommy
Re: Reprocessed MODIS Aqua data
Posted: Thu Oct 27, 2022 5:39 pm America/New_York
by oceanwatchcp
Ah I see! Thank you so much Tommy for your help!
Hope you're having a good day,
Daisy
Re: Reprocessed MODIS Aqua data
Posted: Tue Nov 01, 2022 3:22 pm America/New_York
by zachary.fasnacht
When will the reprocessed TERRA OC files be released? It appears only the reprocessed AQUA OC files are currently available.
Thanks!
Re: Reprocessed MODIS Aqua data
Posted: Wed Nov 02, 2022 12:03 am America/New_York
by OB ODPS - towens
We have not yet reprocessed Terra. We are finalizing the calibration and reprocessing should be begin this week.
Tommy