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[MCD19A2] Band dimension variations for different subcategories

https://forum.earthdata.nasa.gov/viewtopic.php?t=4714

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[MCD19A2] Band dimension variations for different subcategories

Posted: Tue Oct 10, 2023 11:53 am America/New_York
by earthengine_urs
We ingested MCD19A2.061 recently, we observed that for a few files the band dimensions are different for different subdatasets.

For example, in the case of MCD19A2.A2020092.h16v00.061.2023136094901.hdf
HDF4_EOS:EOS_GRID:"MCD19A2.A2020092.h16v00.061.2023136094901.hdf":grid5km:Optical_Depth_047
Size is 0, 1
HDF4_EOS:EOS_GRID:"MCD19A2.A2020092.h16v00.061.2023136094901.hdf":grid5km:Glint_Angle
Size is 240, 240

Is there any reason why optical_depth band dimensions are 0,1?

Re: [MCD19A2] Band dimension variations for different subcategories

Posted: Tue Oct 10, 2023 1:04 pm America/New_York
by LP DAAC-EDL - lien
Hi,
I am not sure what is causing this issue. I pulled that granule from our archive (https://e4ftl01.cr.usgs.gov/MOTA/MCD19A2.061/2020.04.01/) and it shows the Optical_Depth_47 as 1200x1200 as it should be and the Glint_Angle at 240x240 as it should be. One thing I noticed however is your example below shows the Optical_Depth_47 as a 5k grid and it is actually a 1k grid. The Glint_Angle is a 5k grid so that is accurate. Can you let me know where you downloaded the data from?
Thanks,
Brett

Re: [MCD19A2] Band dimension variations for different subcategories

Posted: Mon Oct 16, 2023 1:52 pm America/New_York
by earthengine_urs
Thank you, this was simply us using an incorrect subdataset string.

Best,
Simon
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