Tutorials on GEDI Science Data Products

Author: ORNL DAAC
Date: August 26, 2021
Contact for the ORNL DAAC: uso@daac.ornl.gov

Keywords: lidar, GEDI, AGBD, aboveground biomass

Overview

These tutorials demonstrate how to discover, access, and use GEDI science data products archived at the ORNL DAAC. GEDI L3, L4A, and L4B data products are available in various data tools and services.

Requirements are in requirements.txt. To install the necessary Python libraries, you can copy the requirements.txt from this repository and run:

pip install -r requirements.txt

Search and download GEDI L4A dataset: search and download GEDI L4A granules over an area of interest to a local machine
Subset GEDI L4A footprints: subset downloaded GEDI L4A granules to an area of interest
Explore GEDI L4A data structure: explore data structure, variables, and quality flags of the GEDI L4A dataset.
Direct S3 Access GEDI L4A from the NASA EarthData Cloud: retrieve the GEDI L4A dataset from NASA Earthdata Cloud using direct S3 access.
Access GEDI L4A dataset with NASA OPeNDAP in the Cloud: access selected variables for the GEDI L4A dataset within an area of interest using OPeNDAP Hyrax
Access GEDI L4A dataset with NASA Harmony API: direct access and subset the GEDI L4A variables using NASA Harmony API
Reproduce L4A AGBD estimates from GEDI L2A RH metrics: reconstruct L4A AGBD estimates using L2A relative height (RH) metrics
Apply correction to AGBD estimates for selected L4A shots, Version 2: apply AGBD correction to Version 1 (V001) GEDI L4A shots affected with the algorithm setting group 10 issue

Search and download GEDI L4A dataset: downloads GEDI L4A granules to a local directory based on GeoJSON polygon
Subset GEDI L4A footprints: subsets the downloaded GEDI L4A granules by a GeoJSON polygon file
Subset GEDI L4A with NASA OPeNDAP in the Cloud: accesses the GEDI L4A dataset using NASA's OPeNDAP Hyrax

Access GEDI L4B Dataset with OGC Web Services: visualize and access the GEDI L4B dataset using the OGC WMS and WCS services

More resources related to ORNL DAAC data and web services can be found at the ORNL DAAC Learning page.

Name		Name	Last commit message	Last commit date
Latest commit History 77 Commits
full_orbits		full_orbits
polygons		polygons
scripts		scripts
subsets		subsets
1_gedi_l4a_search_download.ipynb		1_gedi_l4a_search_download.ipynb
2_gedi_l4a_subsets.ipynb		2_gedi_l4a_subsets.ipynb
3_gedi_l4a_exploring_data.ipynb		3_gedi_l4a_exploring_data.ipynb
LICENSE.md		LICENSE.md
README.md		README.md
access_gedi_l4a_hyrax.ipynb		access_gedi_l4a_hyrax.ipynb
correct_GEDI_L4A_V002_01.ipynb		correct_GEDI_L4A_V002_01.ipynb
gedi_l4a_direct_s3_access.ipynb		gedi_l4a_direct_s3_access.ipynb
gedi_l4a_harmony.ipynb		gedi_l4a_harmony.ipynb
gedi_l4b_ogc.ipynb		gedi_l4b_ogc.ipynb
reconstruct_L4A_AGBD_L2A_metrics.ipynb		reconstruct_L4A_AGBD_L2A_metrics.ipynb
requirements.txt		requirements.txt
services.md		services.md