Search found 183 matches

by LP DAAC - lien
Fri Mar 15, 2024 10:13 am America/New_York
Forum: Home
Question: How should pixel values greater than 10,000 or less than 0 in MOD09GA data be handled?
Replies: 6

Re: How should pixel values greater than 10,000 or less than 0 in MOD09GA data be handled?

Happy to help Zhou, please let me know if I can be of further assistance.
Brett
by LP DAAC - lien
Thu Mar 14, 2024 11:11 am America/New_York
Forum: Home
Question: MCD15A3H
Replies: 6

Re: MCD15A3H

Hi Li Xiyu,
Can you tell me what Lai product you are comparing the MCD15s to?
Thanks,
Brett
by LP DAAC - lien
Thu Mar 14, 2024 11:07 am America/New_York
Forum: Home
Question: MODIS MOD09A1 v6.1 invalid QC codes?
Replies: 6

Re: MODIS MOD09A1 v6.1 invalid QC codes?

Hello Hawthorne, Sorry for the delay, we contacted the PI/developer of this product for his take and he confirmed that we were reading the bits in reverse. OK, then the issue was why did the Mandatory Modland QA bits show "00" Good Data. He always thought the individual band quality QAs we...
by LP DAAC - lien
Thu Mar 14, 2024 9:16 am America/New_York
Forum: Home
Question: HEG resample error in linux
Replies: 1

Re: HEG resample error in linux

Hi @jianjun5212
I think the HEG folks will be able to help you with this: heg-support@earthdata.nasa.gov.
Also, we have a tool that will do the same functions and it has many other capabilities also. It is the AppEEARS tool: https://appeears.earthdatacloud.nasa.gov
Thanks,
Brett
by LP DAAC - lien
Wed Mar 13, 2024 10:27 am America/New_York
Forum: Home
Question: MCD19A3D has only 2 layers with NBAR when downloaded
Replies: 8

Re: MCD19A3D has only 2 layers with NBAR when downloaded

Hello,
All 11 SDS layers should be in each HDF file, can you tell me what method you used to download the data and what GIS software you are using? In the meantime I will download a couple of those tiles and take a look
Thanks,
Brett
by LP DAAC - lien
Wed Mar 13, 2024 10:20 am America/New_York
Forum: Home
Question: MCD19A1
Replies: 3

Re: MCD19A1

Absolutely, please go to the MODIS Overview site as that has lots of great information including the complete list of the 36 MODIS spectral bands and there pertinent information: https://lpdaac.usgs.gov/data/get-started-data/collection-overview/missions/modis-overview/
Thanks,
Brett
by LP DAAC - lien
Wed Mar 13, 2024 7:17 am America/New_York
Forum: Home
Question: Unable to download certain GEDI L1B granules
Replies: 4

Re: Unable to download certain GEDI L1B granules

Hi Q,
Sorry about that. I could put those orders in before, but later that technique was not working for me eihter.
Could you contact the folks at Eartrhdata support as they said they could give you various options on how to
access the data: cmr-support@earthdata.nasa.gov
Thanks,
Brett
by LP DAAC - lien
Wed Mar 13, 2024 7:12 am America/New_York
Forum: Home
Question: Spatial Subsetting Applications
Replies: 10

Re: Spatial Subsetting Applications

Hi @ carlsopr Could you give to me some of the AppEEARS order IDs where you are seeing this. I am looking at your orders and I see 2 area and 5 point requests. Supposedly AppEEARS should process all available pixels with an actual value that falls within your search criteria whether it is over land ...
by LP DAAC - lien
Tue Mar 12, 2024 1:44 pm America/New_York
Forum: Home
Question: MODIS cloud remove
Replies: 6

Re: MODIS cloud remove

Ideally, that would be the case, if you are asking me is it more necessary for that purpose then it is with others, I am not sure. But undoubtedly the more accurate Surface Reflectance value is with the lower Aerosol level. One of the inherent issues with daily data is to find the balance between se...
by LP DAAC - lien
Tue Mar 12, 2024 12:15 pm America/New_York
Forum: Home
Question: Missing MCD43 data for tiles h19v01 and h18v01
Replies: 4

Re: Missing MCD43 data for tiles h19v01 and h18v01

Hi Silvia, First, we apologize for the version discrepancies. We did here back from the LDOPE folks at MODAPS who develop the production algorithms and process the data. They felt that it was due to more stringent sun angle criteria that was used with for V061 processing. They also verified that thi...