Search found 59 matches
- Thu Dec 03, 2020 11:32 am America/New_York
- Forum: Questions/Comments
- Question: GEDI Canopy Height Accuracy/Interpretation over Savannah Woodlands and Open Grasslands
- Replies: 1
Re: GEDI Canopy Height Accuracy/Interpretation over Savannah Woodlands and Open Grasslands
Science Team Response: In this case it’s important that we communicate the L2A relative height metrics are not direct measurement of canopy of tree height, but “lidar perceived” height metrics. Ground and canopy signals in short statured vegetation are often mixed due to the large pulse width of GED...
- Thu Dec 03, 2020 11:31 am America/New_York
- Forum: Questions/Comments
- Question: GEDI Canopy Height Accuracy/Interpretation over Savannah Woodlands and Open Grasslands
- Replies: 1
GEDI Canopy Height Accuracy/Interpretation over Savannah Woodlands and Open Grasslands
User Question: So I have a question about the GEDI data. I recently came across the GEDI instrument and as a RnD exercise have downloaded both Levels 2A and 2B over an area that I am familiar with, open savannah woodland, but the data is a bit disappointing in terms of accuracy/consistency. Now I un...
- Tue Aug 18, 2020 5:01 pm America/New_York
- Forum: Questions/Comments
- Question: GEDI Repeat/Revisit Times
- Replies: 1
Re: GEDI Repeat/Revisit Times
Due to GEDI being attached to the International Space Station (ISS), GEDI is not in the more common sun-synchronous or polar orbits, meaning that it acquires data at different times of day and on a non-standard schedule. Thus the temporal resolution varies with the varying orbit of the ISS, and is l...
- Tue Aug 18, 2020 5:00 pm America/New_York
- Forum: Questions/Comments
- Question: GEDI Repeat/Revisit Times
- Replies: 1
GEDI Repeat/Revisit Times
User Question: Are there repeated revisit points?
- Tue Aug 18, 2020 4:59 pm America/New_York
- Forum: Questions/Comments
- Question: LVIS Tutorials similar to GEDI?
- Replies: 1
Re: LVIS Tutorials similar to GEDI?
The NASA Land, Vegetation, and Ice Sensor (LVIS) is not archived and distributed by the LP DAAC. However, when initially preparing for GEDI full waveform data, I did find an incredibly valuable tutorial (co-authored by Michelle Hofton) that used LVIS data, available at: https://lvis.gsfc.nasa.gov/Ho...
- Tue Aug 18, 2020 4:58 pm America/New_York
- Forum: Questions/Comments
- Question: LVIS Tutorials similar to GEDI?
- Replies: 1
LVIS Tutorials similar to GEDI?
User Question: Will you have similar Jupyter code for GEDI airborne LVIS data?
- Tue Aug 18, 2020 4:56 pm America/New_York
- Forum: Questions/Comments
- Question: GEDI Data in the Cloud
- Replies: 1
Re: GEDI Data in the Cloud
All NASA EOSDIS DAACs (including LP DAAC) are in the process of ingesting data products into the cloud (https://earthdata.nasa.gov/eosdis/cloud-evolution). We do not have any collaborations/communications with Google Earth Engine to add GEDI data to that platform. However, Google may add GEDI data i...
- Tue Aug 18, 2020 4:55 pm America/New_York
- Forum: Questions/Comments
- Question: GEDI Data in the Cloud
- Replies: 1
GEDI Data in the Cloud
User Question: Are there any plans to ingest all data in the cloud or existing cloud computing platforms such as Google Earth Engine?
- Tue Aug 18, 2020 4:53 pm America/New_York
- Forum: Questions/Comments
- Question: Temporal Resolution of GEDI Data
- Replies: 1
Re: Temporal Resolution of GEDI Data
Due to GEDI being attached to the International Space Station (ISS), GEDI is not in the more common sun-synchronous or polar orbits, meaning that it acquires data at different times of day and on a non-standard schedule. Thus, the temporal resolution varies with the varying orbit of the ISS, and is ...
- Tue Aug 18, 2020 4:52 pm America/New_York
- Forum: Questions/Comments
- Question: Temporal Resolution of GEDI Data
- Replies: 1
Temporal Resolution of GEDI Data
User Question: What is the temporal resolution of GEDI data?