Search found 139 matches

by LP DAAC - lien
Wed Feb 21, 2024 9:27 am America/New_York
Forum: Questions/Comments
Question: MODIS 8 Day or 16 Day Composite
Replies: 1

Re: MODIS 8 Day or 16 Day Composite

Hello, Yes, the day mentioned is the first day of the composite period, so in your example the period would be from January 1 through the 8th of January. This is true with all MODIS/VIIRS products, with one exception. That exception is the MCD43 BRDF/Albedo products. Those are 16 day products, but t...
by LP DAAC - lien
Tue Feb 20, 2024 9:29 am America/New_York
Forum: Questions/Comments
Question: Downloading MOD13A1 and MYD13A1 files - methods?
Replies: 2

Re: Downloading MOD13A1 and MYD13A1 files - methods?

Hello,
Could you attach your python code and we can take a look, Also, could you attach the text file then we can see where you compile it from. If you would like you could send it to the LPDAAC email: lpdaac@usgs.gov
Thanks,
Brett
by LP DAAC - lien
Fri Feb 16, 2024 10:37 am America/New_York
Forum: Questions/Comments
Question: MODIS MOD09A1 Product negative reflectances
Replies: 1

Re: MODIS MOD09A1 Product negative reflectances

Hi Niklas, Sorry, but I don't think there is much that can be done about that, the MOD09 products are not recommended for water pixels. The "anomalies" that you've identified, e.g. negative reflectance values, are known issues in MODIS along with many other Surface Reflectance products suc...
by LP DAAC - lien
Wed Feb 14, 2024 11:15 am America/New_York
Forum: Questions/Comments
Question: Albedo data by city
Replies: 4

Re: Albedo data by city

Hi Hina, The MCD43A3 is available through AppEEARS: https://lpdaac.usgs.gov/products/mcd43a3v061/ The MCD43A3 contains the 7 MODIS Land Bands and 3 broadbands in both Black-Sky and White_Sky Albedo. AppEEARS will allow you to perform a lat long Point search or an area. The point search would bring b...
by LP DAAC - lien
Mon Jan 22, 2024 11:54 am America/New_York
Forum: Questions/Comments
Question: Missing MOD11A2.061 tiles from 2001
Replies: 15

Re: Missing MOD11A2.061 tiles from 2001

Hi Mauricio,
Thanks for your patience. The CMR cloud library has been updated so it should be reconciled with our on-prem Data Pool.
Thanks again for your patience and informing us about this.
Brett
by LP DAAC - lien
Mon Jan 22, 2024 10:22 am America/New_York
Forum: Questions/Comments
Question: Error loading into memory HLS data
Replies: 2

Re: Error loading into memory HLS data

Hi Charlie, We've updated the HLS_Tutorial.ipynb to include a try loop around reading of the HLS files via https. There seems to be some sort of network issue that can cause that error, and it appears to be independent of the code being executed in the notebook. We would recommend adding a retry loo...
by LP DAAC - lien
Mon Jan 22, 2024 9:37 am America/New_York
Forum: Questions/Comments
Question: Trouble accessing files via S3
Replies: 2

Re: Trouble accessing files via S3

Hello, We are sending this to our developers to get there take, as soon as I hear anything I will let you know. This product is also in our on-premises Data Pool: https://e4ftl01.cr.usgs.gov/MOLT/MOD14.061/ Also we do have a python script that access the data that way: https://git.earthdata.nasa.gov...
by LP DAAC - lien
Fri Jan 19, 2024 2:53 pm America/New_York
Forum: Questions/Comments
Question: Missing MODIS v6.1 data on Dec 22 2023
Replies: 4

Re: Missing MODIS v6.1 data on Dec 22 2023

Hi Katya, Sorry for the delay. They are not recoverable, unfortunately this will occur more often as the Terra and Aqua platforms orbit decays. Please see the following also: Data gaps or missing data have become more of a routine occurrence for Terra, Aqua, and Terra+Aqua Combined MODIS data produc...
by LP DAAC - lien
Fri Jan 19, 2024 2:38 pm America/New_York
Forum: Questions/Comments
Question: MODIS band 6, or LSWI, at 250m resolution?
Replies: 3

Re: MODIS band 6, or LSWI, at 250m resolution?

Hi Tim,
Unfortunately I am not aware of any entity that has resampled the 500 meter data to 250. MODIS Bands 1 and 2 are the only 250 meter bands and bands 3-7 are 500 and 8-36 are 1000 meters. WIsh I could be of more help.
Thanks,
Brett
by LP DAAC - lien
Thu Jan 18, 2024 11:29 am America/New_York
Forum: Questions/Comments
Question: Problems downloading VNP15A2H v002 vegetation products
Replies: 3

Re: Problems downloading VNP15A2H v002 vegetation products

Hi Enrique, Yes, that is a good idea and that is in the works. Right now the data base administrators are accessing what is all missing. It varies with each product. The data providers are not giving us any timeline, as I don't think they have any idea at this point. Thanks for your patience. Brett