Search found 172 matches

by LP DAAC - lien
Thu Mar 28, 2024 9:26 am America/New_York
Forum: Questions/Comments
Question: Missing HLS Granules between 2024-03-05 & 2024-03-12
Replies: 6

Re: Missing HLS Granules between 2024-03-05 & 2024-03-12

Hi Matthew, Please see below from a data manager: Infrequent and unexpected data gaps can be caused by a number of issues, including delays in being able to access the input and/or ancillary data needed to generate the products. Since the provider, in this case HLS, is getting its input data upstrea...
by LP DAAC - lien
Tue Mar 26, 2024 11:00 am America/New_York
Forum: Questions/Comments
Question: Learn all about EMIT Data: how to access, how to work with it, how to visualize, the algorithms that went into it & more
Replies: 1

Re: Discovering EMIT Data.

We recently had a user write in looking for more information on the EMIT algorithm. We wanted to make sure all users that are interested in EMIT data had a chance to learn more about the data. In case you missed it, NASA’s JPL EMIT Science Team and the LP DAAC hosted a 2-hour virtual workshop on the...
by LP DAAC - lien
Tue Mar 26, 2024 10:59 am America/New_York
Forum: Questions/Comments
Question: Learn all about EMIT Data: how to access, how to work with it, how to visualize, the algorithms that went into it & more
Replies: 1

Learn all about EMIT Data: how to access, how to work with it, how to visualize, the algorithms that went into it & more

We recently had a user write in looking for more information on the EMIT algorithm. We wanted to make sure all users that are interested in EMIT data had a chance to learn more about the data.
LPDAAC
by LP DAAC - lien
Fri Mar 22, 2024 3:24 pm America/New_York
Forum: Questions/Comments
Question: MCD19A3D has only 2 layers with NBAR when downloaded
Replies: 5

Re: MCD19A3D has only 2 layers with NBAR when downloaded

Hi CB, Sorry for the run around on this, I was looking in the wrong area too. There should be a suite of 1km layers, and I am wondering if your R package is not seeing them. There should be 10 1km fields. I opened one of those up in HDFView and attached a screen capture of all the fields. Please let...
by LP DAAC - lien
Thu Mar 21, 2024 10:03 am America/New_York
Forum: Questions/Comments
Question: Missing HLS Granules between 2024-03-05 & 2024-03-12
Replies: 6

Re: Missing HLS Granules between 2024-03-05 & 2024-03-12

Hi @matthew_cox_omnia
Sorry for the delay. It appears now processing has caught up and closed the data gaps. Thanks for your patience.
Brett
by LP DAAC - lien
Tue Mar 19, 2024 12:14 pm America/New_York
Forum: Questions/Comments
Question: Spatial Subsetting Applications
Replies: 10

Re: Spatial Subsetting Applications

Hi @carlsopr Can you double check your Point requests. The majority we are seeing are over the Antarctic, The Area requests are over Florida, so I am not sure what is going on. For instance: a052f041-33db-4da6-bf8f-7f9adfd96e4d
Shows over Antarctica.
Thanks,
Brett
by LP DAAC - lien
Fri Mar 15, 2024 2:44 pm America/New_York
Forum: Questions/Comments
Question: HLS Granules Out of Date
Replies: 2

Re: HLS Granules Out of Date

Hello,
Sorry for the delay. We believe this is primarily due to the switch from MODIS Surface Reflectance to VIIRS. that is going on this week. We expect it to kick back up soon.
Thanks,
Brett
by LP DAAC - lien
Fri Mar 15, 2024 10:40 am America/New_York
Forum: Questions/Comments
Question: MCD19A3D has only 2 layers with NBAR when downloaded
Replies: 5

Re: MCD19A3D has only 2 layers with NBAR when downloaded

Hi CB, Yes, I am getting the same results you are. First I thought OK, the algorithm detected snow so the NDVI_Gap Filled was not produced. However 16/7 is along the coast and in the tropics so that would not be right. We'll investigate further and let you know as soon as we here anything from the d...
by LP DAAC - lien
Fri Mar 15, 2024 10:15 am America/New_York
Forum: Questions/Comments
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?

Hi Zhou,
It is always recommended to use the State Quality flags for clouds. The State Quality incorporaes the MOD35 cloud info and is more detailed.
Thanks,
Brett
by LP DAAC - lien
Fri Mar 15, 2024 10:13 am America/New_York
Forum: Questions/Comments
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