Search found 59 matches

by LP DAAC - ckrehbiel
Thu Dec 03, 2020 11:32 am America/New_York
Forum: Home
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...
by LP DAAC - ckrehbiel
Thu Dec 03, 2020 11:31 am America/New_York
Forum: Home
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...
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 5:01 pm America/New_York
Forum: Home
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...
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 5:00 pm America/New_York
Forum: Home
Question: GEDI Repeat/Revisit Times
Replies: 1

GEDI Repeat/Revisit Times

User Question: Are there repeated revisit points?
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 4:59 pm America/New_York
Forum: Home
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...
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 4:58 pm America/New_York
Forum: Home
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?
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 4:56 pm America/New_York
Forum: Home
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...
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 4:55 pm America/New_York
Forum: Home
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?
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 4:53 pm America/New_York
Forum: Home
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 ...
by LP DAAC - ckrehbiel
Tue Aug 18, 2020 4:52 pm America/New_York
Forum: Home
Question: Temporal Resolution of GEDI Data
Replies: 1

Temporal Resolution of GEDI Data

User Question: What is the temporal resolution of GEDI data?