Search found 188 matches

by LP DAAC - lien
Wed Mar 13, 2024 10:20 am America/New_York
Forum: Home
Question: MCD19A1
Replies: 5

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...
by LP DAAC - lien
Tue Mar 12, 2024 11:53 am America/New_York
Forum: Home
Question: MCD19A1
Replies: 5

Re: MCD19A1

Hello, Sorry for the delay. We wanted to get confirmation about this from the PI/Developer of the MAIAC product because Band 4, 11, and 12 fall with in the green wavelength. He did confirm what we suspected, it is Band 4 that is aligned with the MCD19A2 optical_depth_550. Please let us know if you h...
by LP DAAC - lien
Tue Mar 12, 2024 11:46 am America/New_York
Forum: Home
Question: MODIS cloud remove
Replies: 6

Re: MODIS cloud remove

Hi Zhou,
It is recommended to use the Cloud State, as that is more definitive. Also, It contains, cloud mask from MOD35 and cloud/snow/aerosol/fire/shadow etc as determined by the reflectance algorithm. Hence users are encouraged to use the state flag from the MOD09GA.
Thanks,
Brett
by LP DAAC - lien
Tue Mar 12, 2024 10:38 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, Please remove the spaces and the quotation marks and I think it will work, with one condition. I discovered that Earthdata will only allow 5 granules at a time to be searched this way. When I put the entire list in it gave me this error: Error retrieving granules The query contained [26] condi...
by LP DAAC - lien
Tue Mar 12, 2024 10:13 am America/New_York
Forum: Home
Question: Download script for MODIS/Terra LST Daily 1km has different download URLS from collection granules shown
Replies: 4

Re: Download script for MODIS/Terra LST Daily 1km has different download URLS from collection granules shown

Hi, Can I point you in a little different direction. We have seen this issue with the Earthdata Search before when users try to subset. We are the LPDAAC, so the data comes from us, but the Earthdata Search is out of our control. Can you try our AppEEARS tool: https://appeears.earthdatacloud.nasa.go...
by LP DAAC - lien
Fri Mar 08, 2024 11:38 am America/New_York
Forum: Home
Question: MCD15A3H
Replies: 6

Re: MCD15A3H

Hi, LAI_Charts_China.PNG I processed February 1 through June 30 from 2012-2023 in our AppEEARS tool and they seem consistent, so at least there is no dramatic spike or drop from year to year, but the highest value I see is 2.3. The vast majority are between 0.5 and 1.5, so the issue is should they b...