MODIS 250 m Rhos and Rrs

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avmehta
Posts: 165
Joined: Mon Feb 03, 2020 10:27 am America/New_York

MODIS 250 m Rhos and Rrs

by avmehta » Sat Jan 30, 2021 6:54 pm America/New_York

Hello,
   I started generating multiyear Aqua MODIS L2 data at 250 m resolution.  I see on https://oceancolor.gsfc.nasa.gov/docs/modis_hires/ that there are Hires  MODIS sensor variants (HMODISA and HMODIST) that l2gen uses! I do not see these options in GUI and not sure whether they are used when I use l2gen on a linux machine with command line version!
Here is what I have been doing to get Rhos and Rrs from MODIS:

- I order and download L1A LAC files (AYYYYDDDxxxxxxx.L1A_LAC.x.hdf) from the Ocean Color website.
- I generate GEO files and L1A and L1B files ( LAC, HKM, and QKM).
- I use l2gen with resolution=250
How do I  make sure that the correct libraries/tables are used ?
Thanks much for your help.
Amita

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gnwiii
Posts: 642
Joined: Fri Jan 29, 2021 5:51 pm America/New_York
Answers: 2

MODIS 250 m Rhos and Rrs

by gnwiii » Sun Jan 31, 2021 8:28 am America/New_York

Search this forum for "HMODISA" and you will find an explanation.

avmehta
Posts: 165
Joined: Mon Feb 03, 2020 10:27 am America/New_York

MODIS 250 m Rhos and Rrs

by avmehta » Sun Jan 31, 2021 9:06 am America/New_York

Thank you so very much!
Amita

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