Search found 69 matches

by LP DAAC - dgolon
Wed Feb 08, 2023 1:56 pm America/New_York
Forum: Questions/Comments
Question: GEDI L1B
Replies: 2

Re: GEDI L1B

Hi @meiyuanchen Please read this paper (https://www.sciencedirect.com/science/article/pii/S2666017220300018) to help answer your questions. The GEDI team also mentioned "Nighttime power beams are a good place to start over dense forests." Thank you.
by LP DAAC - dgolon
Wed Feb 08, 2023 1:51 pm America/New_York
Forum: Questions/Comments
Question: Asking questions about GEDI data
Replies: 1

Re: Asking questions about GEDI data

These are noise-only returns. Probably tracking over clouds and unable to get to the ground, so the shot has used the parameters of the last shot in which signal was detected to locate the return waveform. The user can use "quality_flag" and if it's 1, then it passes some initial checks on...
by LP DAAC - dgolon
Wed Feb 08, 2023 1:50 pm America/New_York
Forum: Questions/Comments
Question: Asking questions about GEDI data
Replies: 1

Asking questions about GEDI data

The LP DAAC User Services team received the following question via email. We believe the answer will help the science community, so we are adding it to the forum too. From a user: At the risk of interrupting, I would like to ask a question about GEDI data. I am a student. I read GEDI L1B data in R l...
by LP DAAC - dgolon
Mon Jan 30, 2023 10:54 am America/New_York
Forum: Questions/Comments
Question: Can't find selected_algorithm in L2A GEDI elevation and canopy height dataset
Replies: 3

Re: Can't find selected_algorithm in L2A GEDI elevation and canopy height dataset

Hi alvioli Here is what we heard back: We recommend using the LP DAAC - Getting Started with GEDI L2A Version 2 Data in Python (usgs.gov)(https://lpdaac.usgs.gov/resources/e-learning/getting-started-gedi-l2a-version-2-data-python/) script. Although it is not command line executable it should yield s...
by LP DAAC - dgolon
Thu Jan 19, 2023 9:27 am America/New_York
Forum: Questions/Comments
Question: Landsat 8 panchromatic band data not available on S3
Replies: 1

Re: Landsat 8 panchromatic band data not available on S3

Hi @gcaria I just spoke with the Landsat team. This is a know issue. It is expected to be resolved in the next week or so. I will report back once it has been resolved. Thanks.
by LP DAAC - dgolon
Fri Jan 13, 2023 5:00 pm America/New_York
Forum: Questions/Comments
Question: Failed to submit the order to download the AST_05 ASTER emissivity data
Replies: 5

Re: Failed to submit the order to download the AST_05 ASTER emissivity data

Hi laurencehu What is the timeframe of data you are interested in and what is the error you are seeing? Please note: Terra ASTER Processing Remains on Hold for Data Acquired after October 23, 2022. If you are looking for data after October 23, 2022 that might be what is causing the error. More infor...
by LP DAAC - dgolon
Tue Dec 20, 2022 4:35 pm America/New_York
Forum: Questions/Comments
Question: MOD13Q1 HDF missing files
Replies: 1

Re: MOD13Q1 HDF missing files

Hi julio.esquerdo The MODIS team is currently working on historically processing the MODIS Version 6.1 data. These data will be available in the future. The LP DAAC will post a news announcement on our website and on the Earthdata Forum once the historical processing effort has been completed. Thank...
by LP DAAC - dgolon
Tue Dec 20, 2022 3:19 pm America/New_York
Forum: Questions/Comments
Question: Choosing MCD19A2.006 tiles to cover a region
Replies: 5

Re: Choosing MCD19A2.006 tiles to cover a region

Hi @kodiologist just following up with additional information. There is a KMZ file of the HV grid, which can be found here: https://modis.ornl.gov/files/modis_sin.kmz
by LP DAAC - dgolon
Tue Dec 20, 2022 3:17 pm America/New_York
Forum: Questions/Comments
Question: Can't find GEDI L2A data with same coverage as L4A data.
Replies: 3

Re: Can't find GEDI L2A data with same coverage as L4A data.

Hi @tomosarliuxiao Using the link you provided I see the data in the LP DAAC's data pool and that it was added on Sept 30, 2022. If you are still not able to see it, please let us know as we'd like to look into it.
by LP DAAC - dgolon
Tue Dec 20, 2022 3:11 pm America/New_York
Forum: Questions/Comments
Question: Choosing MCD19A2.006 tiles to cover a region
Replies: 5

Re: Choosing MCD19A2.006 tiles to cover a region

Hi kodiologist The HV numbers correlate to the HV Grid. An example can be found here: https://lpdaac.usgs.gov/data/get-started-data/collection-overview/missions/modis-overview/#modis-tiling-systems I am not aware of a shapefile that currently exists of the HV grid but I have passed this idea on to o...