Search found 14 matches

by martinkeller
Tue Apr 07, 2026 6:02 am America/New_York
Forum: Home
Question: Missing VIIRS NDVI data
Replies: 4

Re: Missing VIIRS NDVI data

Hi Brett,

Thanks for looking into this!

Best,

Martin
by martinkeller
Wed Apr 01, 2026 2:53 am America/New_York
Forum: Home
Question: Missing VIIRS NDVI data
Replies: 4

Missing VIIRS NDVI data

To whom it may concern, I am currently looking into VIIRS vegetation index data again, and I noticed that some tiles are missing for this year. In particular, for the VJ113A1 VIIRS vegetation index data product, the following DOY-tile combinations appear to be missing: A2026033: h13v04 A2026065: h18...
by martinkeller
Thu Jan 22, 2026 3:17 am America/New_York
Forum: Home
Question: Missing tiles for VIIRS vegetation indexes
Replies: 2

Missing tiles for VIIRS vegetation indexes

Hi All, I noticed that some tiles for VIIRS vegetation index products are currently missing from EarthData. In particular, for VJ113A1 and DOY A2026001 the tiles h09v07 and h10v04 are missing from the EarthData catalogue. Could you please let me know when these will be backfilled? Best regards and t...
by martinkeller
Fri Jan 09, 2026 4:35 am America/New_York
Forum: Home
Question: Missing VIIRS tiles for 2025
Replies: 3

Re: Missing VIIRS tiles for 2025

Hi Danielle,
I'm working with VJ113A1 data at the moment.
by martinkeller
Thu Jan 08, 2026 12:01 pm America/New_York
Forum: Home
Question: Missing VIIRS tiles for 2025
Replies: 3

Missing VIIRS tiles for 2025

Hi All, I'm currently downloading VIIRS data for November and December 2025, and some tiles appear to be missing at the moment. In particular, for DOY A2025345 the tiles 'h08v07'; 'h09v08' and 'h17v05' are missing. Will these tiles be backfilled at some point in the near future? Best regards, Martin...
by martinkeller
Wed Jan 07, 2026 11:27 am America/New_York
Forum: Home
Question: Missing tiles for historical MODIS data
Replies: 10

Re: Missing tiles for historical MODIS data

Hi Erik,

Many thanks for your detailed answer! I adjusted my code based on the notebook you shared and tried downloading MODIS data for the previously problematic date range. I'm happy to confirm that with the changes to the code everything worked just fine!

Best regards,

Martin Keller
by martinkeller
Mon Jan 05, 2026 4:34 am America/New_York
Forum: Home
Question: Missing tiles for historical MODIS data
Replies: 10

Re: Missing tiles for historical MODIS data

This notebook is in fact the basis for the code I posted earlier. The tiles listed for the date range discussed earlier are still incomplete while later date ranges show up as complete, which leads me to suspect that the issue I'm encountering might be related to a backend service used by the EarthA...
by martinkeller
Tue Dec 16, 2025 7:55 am America/New_York
Forum: Home
Question: Missing tiles for historical MODIS data
Replies: 10

Re: Missing tiles for historical MODIS data

Thank you for your reply. I have looked over the links you provided and all the relevant data does indeed seem to be available. In order to get to the bottom of why I can't seem to find the data I put together a small Python script to check what data is available when I query the Nasa Earthdata cata...
by martinkeller
Thu Dec 11, 2025 9:43 am America/New_York
Forum: Home
Question: Missing tiles for historical MODIS data
Replies: 10

Re: Missing tiles for historical MODIS data

I just tried to download the data for DOY A2022129. I again requested the tiles 'h24v05', 'h24v06', 'h25v06', 'h26v06', 'h24v07', 'h25v07', 'h26v07', 'h25v08', but only got 'h24v05'.
by martinkeller
Thu Dec 11, 2025 7:14 am America/New_York
Forum: Home
Question: Missing tiles for historical MODIS data
Replies: 10

Missing tiles for historical MODIS data

Hi All, I am trying to download historical MODIS NDVI data for India and I noticed that a lot of historical data doesn't seem to be available. In particular, before June 2022 only a few number of tiles for the MOD13Q1 and MYD13Q1 data products are available. The particular tiles that I'm trying to a...