MODIS Aqua geolocation files

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wang2579
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MODIS Aqua geolocation files

by wang2579 » Tue Oct 11, 2022 1:21 pm America/New_York

Wish to produce some MODIS Aqua L1B files using OBDAAC (directdataaccess) L1A & GEO files. Found not all L1A files have same day Geolocation files. Such as day 2008-01-01:

https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Geo-Location/Aqua-MODIS/2008/001/
Level-1A ▸ Aqua-MODIS ▸ 2008 ▸ 001 Geo-Location ▸ Aqua-MODIS ▸ 2008 ▸ 001

A2008001000000.L1A_LAC.bz2 - Geofile not find
A2008001000500.L1A_LAC.bz2 - Geofile not find
A2008001001000.L1A_LAC.bz2 - Geofile not find
A2008001001500.L1A_LAC.bz2 - Geofile not find
A2008001002000.L1A_LAC.bz2 - Geofile not find
A2008001002500.L1A_LAC.bz2 - Geofile not find
A2008001003000.L1A_LAC.bz2 - Geofile not find
A2008001003500.L1A_LAC.bz2 - AQUA_MODIS.20080101T003501.GEO.hdf
A2008001004000.L1A_LAC.bz2 - AQUA_MODIS.20080101T004001.GEO.hdf
A2008001004500.L1A_LAC.bz2 - AQUA_MODIS.20080101T004501.GEO.hdf
A2008001005000.L1A_LAC.bz2 - AQUA_MODIS.20080101T005001.GEO.hdf
A2008001005500.L1A_LAC.bz2 - AQUA_MODIS.20080101T005501.GEO.hdf
A2008001010000.L1A_LAC.bz2 - AQUA_MODIS.20080101T010001.GEO.hdf
A2008001010500.L1A_LAC.bz2 - AQUA_MODIS.20080101T010500.GEO.hdf
. . . . .

Need help to get those matching Geo-location files for L1B file processing.

Many thanks !

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OB ODPS - towens
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Re: MODIS Aqua geolocation files

by OB ODPS - towens » Tue Oct 11, 2022 3:19 pm America/New_York

We have only reprocessed the GEO files for the daynight flag=1,3 so far. The GEO for night granules will be processed soon.

Tommy

wang2579
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Re: MODIS Aqua geolocation files

by wang2579 » Fri Oct 14, 2022 10:05 am America/New_York

Thanks for the info.

Will check back to see night time geolocation files in the future.

OB ODPS - towens
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Re: MODIS Aqua geolocation files

by OB ODPS - towens » Fri Oct 14, 2022 10:14 am America/New_York

You can still generate the night GEO files you need in SeaDAS as was done before we started putting them in the public archive.

Tommy

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