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GEDI L3 Gridded Land Surface Metrics, Version 2

Metadata Updated: December 6, 2023

This dataset provides Global Ecosystem Dynamics Investigation (GEDI) Level 3 (L3) gridded mean canopy height, standard deviation of canopy height, mean ground elevation, standard deviation of ground elevation, and counts of laser footprints per 1-km x 1-km grid cells globally within -52 and 52 degrees latitude. These L3 gridded products were derived from Level 2 (L2) geolocated laser footprint return profile metrics from the GEDI instrument onboard the International Space Station (ISS). Canopy height is provided as the mean height (in meters) above the ground of the received waveform signal that was the first reflection off the top of the canopy (RH100). Ground elevation is provided as the mean elevation (in meters) of the center of the lowest waveform mode relative to the WGS84 reference ellipsoid. L3 gridded products can be used to characterize important carbon and water cycling processes, biodiversity, habitat and can also be of immense value for climate modeling, forest management, snow and glacier monitoring, and the generation of digital elevation models. This dataset version uses Version 2 of the input L2 data, which includes improved geolocation of the footprints as well as a modified method to predict an optimum algorithm setting group.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date December 1, 2022
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Level 3 estimated canopy height in meters derived from the Level 2 profile metric RH100 between the 19th and the 223rd mission week. Source: GEDI03_rh100_mean_2019108_2023081_002_05.tif

Additional Metadata

Resource Type Dataset
Metadata Created Date December 1, 2022
Metadata Updated Date December 6, 2023
Publisher ORNL_DAAC
Maintainer
Identifier C2153683336-ORNL_CLOUD
Data First Published 2023-08-23
Language en-US
Data Last Modified 2023-09-19
Category GEDI, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Dubayah, R.O., S.B. Luthcke, T.J. Sabaka, J.B. Nicholas, S. Preaux, and M.A. Hofton. 2021. GEDI L3 Gridded Land Surface Metrics, Version 2. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1952
Graphic Preview Description Level 3 estimated canopy height in meters derived from the Level 2 profile metric RH100 between the 19th and the 223rd mission week. Source: GEDI03_rh100_mean_2019108_2023081_002_05.tif
Graphic Preview File https://daac.ornl.gov/GEDI/guides/GEDI_L3_LandSurface_Metrics_V2_Fig1.png
Harvest Object Id e2fb0b5b-656f-46ce-a48c-6de18b94266d
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.3334/ORNLDAAC/1952
Metadata Type geospatial
Old Spatial -180.0 -52.0 180.0 52.0
Program Code 026:001
Source Datajson Identifier True
Source Hash 532839b28448b0dd719ccab05b4d677fd9938ad82e959f68ee16962f016afb93
Source Schema Version 1.1
Spatial
Temporal 2019-04-18T00:00:00Z/2023-03-22T23:59:59Z

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