 Dataset Availability
 20190325T00:00:00Z–20230101T00:00:00
 Dataset Provider
 USFS Laboratory for Applications of Remote Sensing in Ecology (LARSE) NASA GEDI mission, accessed through the USGS LP DAAC
 Tags
Description
GEDI's Level 2A Geolocated Elevation and Height Metrics Product (GEDI02_A) is primarily composed of 100 Relative Height (RH) metrics, which collectively describe the waveform collected by GEDI.
The original GEDI02_A product is a table of point with a spatial resolution (average footprint) of 25 meters.
Please see User Guide for more information.
The Global Ecosystem Dynamics Investigation GEDI mission aims to characterize ecosystem structure and dynamics to enable radically improved quantification and understanding of the Earth's carbon cycle and biodiversity. The GEDI instrument, attached to the International Space Station (ISS), collects data globally between 51.6° N and 51.6° S latitudes at the highest resolution and densest sampling of the 3dimensional structure of the Earth. The GEDI instrument consists of three lasers producing a total of eight beam ground transects, which instantaneously sample eight ~25 m footprints spaced approximately every 60 m alongtrack.
Product  Description 

L2A Vector  LARSE/GEDI/GEDI02_A_002 
L2A Monthly raster  LARSE/GEDI/GEDI02_A_002_MONTHLY 
L2A table index  LARSE/GEDI/GEDI02_A_002_INDEX 
L2B Vector  LARSE/GEDI/GEDI02_B_002 
L2B Monthly raster  LARSE/GEDI/GEDI02_B_002_MONTHLY 
L2B table index  LARSE/GEDI/GEDI02_B_002_INDEX 
L4A Biomass Vector  LARSE/GEDI/GEDI04_A_002 
L4A Monthly raster  LARSE/GEDI/GEDI04_A_002_MONTHLY 
L4A table index  LARSE/GEDI/GEDI04_A_002_INDEX 
L4B Biomass  LARSE/GEDI/GEDI04_B_002 
Table Schema
Table Schema
Name  Type  Description 

beam  INT  Beam identifier 
degrade_flag  INT  Flag indicating degraded state of pointing and/or positioning information.

delta_time  DOUBLE  Time delta since Jan 1 00:00 2018 
digital_elevation_model  DOUBLE  TanDEMX elevation at GEDI footprint location 
digital_elevation_model_srtm  DOUBLE  STRM elevation at GEDI footprint location 
elev_highestreturn  DOUBLE  Elevation of highest detected return relative to reference ellipsoid 
elev_lowestmode  DOUBLE  Elevation of center of lowest mode relative to reference ellipsoid 
elevation_bias_flag  INT  Elevations potentially affected by 4bin (~60 cm) ranging error 
energy_total  DOUBLE  Integrated counts in the return waveform relative to the mean noise level 
landsat_treecover  DOUBLE  Tree cover in the year 2010, defined as canopy closure for all vegetation taller than 5 m in height as a percentage per output grid cell 
landsat_water_persistence  INT  Percent UMD GLAD Landsat observations with classified surface water 
lat_highestreturn  DOUBLE  Latitude of highest detected return 
leaf_off_doy  INT  GEDI 1 km EASE 2.0 grid leafoff start dayofyear 
leaf_off_flag  INT  GEDI 1 km EASE 2.0 grid flag 
leaf_on_cycle  INT  Flag that indicates the vegetation growing cycle for leafon observations 
leaf_on_doy  INT  GEDI 1 km EASE 2.0 grid leafon start dayofyear 
lon_highestreturn  DOUBLE  Longitude of highest detected return 
modis_nonvegetated  DOUBLE  Percent nonvegetated from MODIS MOD44B V6 data 
modis_nonvegetated_sd  DOUBLE  Percent nonvegetated standard deviation from MODIS MOD44B V6 data 
modis_treecover  DOUBLE  Percent tree cover from MODIS MOD44B V6 data 
modis_treecover_sd  DOUBLE  Percent tree cover standard deviation from MODIS MOD44B V6 data 
num_detectedmodes  INT  Number of detected modes in rxwaveform 
pft_class  INT  GEDI 1 km EASE 2.0 grid Plant Functional Type (PFT) 
quality_flag  INT  Flag indicating likely invalid waveform (1=valid, 0=invalid) 
region_class  INT  GEDI 1 km EASE 2.0 grid world continental regions 
selected_algorithm  INT  Identifier of algorithm selected as identifying the lowest nonnoise mode 
selected_mode  INT  Identifier of mode selected as lowest nonnoise mode 
selected_mode_flag  INT  Flag indicating status of selected_mode 
sensitivity  DOUBLE  Maxmimum canopy cover that can be penetrated. Valid range is [0, 1]. Values outside of this range may be present but must be ignored. They represent noise and nonland surface waveforms. 
solar_azimuth  DOUBLE  The azimuth of the sun position vector from the laser bounce point position in the local ENU frame. The angle is measured from North and is positive towards East. 
solar_elevation  DOUBLE  The elevation of the sun position vector from the laser bounce point position in the local ENU frame. The angle is measured from the EastNorth plane and is positive Up. 
surface_flag  INT  Indicates elev_lowestmode is within 300m of Digital Elevation Model (DEM) or Mean Sea Surface (MSS) elevation 
urban_focal_window_size  INT  The focal window size used to calculate urban_proportion. Values are 3 (3x3 pixel window size) or 5 (5x5 pixel window size). 
urban_proportion  INT  The percentage proportion of land area within a focal area surrounding each shot that is urban land cover. 
orbit_number  INT  Orbit number 
minor_frame_number  INT  Minor frame number 0241() 
shot_number_within_beam  INT  Shot number within beam 
local_beam_azimuth  DOUBLE  Azimuth in radians of the unit pointing vector for the laser in the local ENU frame. The angle is measured from North and positive towards East. 
local_beam_elevation  DOUBLE  Elevation in radians of the unit pointing vector for the laser in the local ENU frame. The angle is measured from North and positive towards East. 
shot_number  STRING  Shot number, a unique identifier. This field has the format of OOOOOBBRRGNNNNNNNN, where:

rh0  DOUBLE  Relative height metrics at 0% 
rh1  DOUBLE  Relative height metrics at 1% 
rh2  DOUBLE  Relative height metrics at 2% 
rh3  DOUBLE  Relative height metrics at 3% 
rh4  DOUBLE  Relative height metrics at 4% 
rh5  DOUBLE  Relative height metrics at 5% 
rh6  DOUBLE  Relative height metrics at 6% 
rh7  DOUBLE  Relative height metrics at 7% 
rh8  DOUBLE  Relative height metrics at 8% 
rh9  DOUBLE  Relative height metrics at 9% 
rh10  DOUBLE  Relative height metrics at 10% 
rh11  DOUBLE  Relative height metrics at 11% 
rh12  DOUBLE  Relative height metrics at 12% 
rh13  DOUBLE  Relative height metrics at 13% 
rh14  DOUBLE  Relative height metrics at 14% 
rh15  DOUBLE  Relative height metrics at 15% 
rh16  DOUBLE  Relative height metrics at 16% 
rh17  DOUBLE  Relative height metrics at 17% 
rh18  DOUBLE  Relative height metrics at 18% 
rh19  DOUBLE  Relative height metrics at 19% 
rh20  DOUBLE  Relative height metrics at 20% 
rh21  DOUBLE  Relative height metrics at 21% 
rh22  DOUBLE  Relative height metrics at 22% 
rh23  DOUBLE  Relative height metrics at 23% 
rh24  DOUBLE  Relative height metrics at 24% 
rh25  DOUBLE  Relative height metrics at 25% 
rh26  DOUBLE  Relative height metrics at 26% 
rh27  DOUBLE  Relative height metrics at 27% 
rh28  DOUBLE  Relative height metrics at 28% 
rh29  DOUBLE  Relative height metrics at 29% 
rh30  DOUBLE  Relative height metrics at 30% 
rh31  DOUBLE  Relative height metrics at 31% 
rh32  DOUBLE  Relative height metrics at 32% 
rh33  DOUBLE  Relative height metrics at 33% 
rh34  DOUBLE  Relative height metrics at 34% 
rh35  DOUBLE  Relative height metrics at 35% 
rh36  DOUBLE  Relative height metrics at 36% 
rh37  DOUBLE  Relative height metrics at 37% 
rh38  DOUBLE  Relative height metrics at 38% 
rh39  DOUBLE  Relative height metrics at 39% 
rh40  DOUBLE  Relative height metrics at 40% 
rh41  DOUBLE  Relative height metrics at 41% 
rh42  DOUBLE  Relative height metrics at 42% 
rh43  DOUBLE  Relative height metrics at 43% 
rh44  DOUBLE  Relative height metrics at 44% 
rh45  DOUBLE  Relative height metrics at 45% 
rh46  DOUBLE  Relative height metrics at 46% 
rh47  DOUBLE  Relative height metrics at 47% 
rh48  DOUBLE  Relative height metrics at 48% 
rh49  DOUBLE  Relative height metrics at 49% 
rh50  DOUBLE  Relative height metrics at 50% 
rh51  DOUBLE  Relative height metrics at 51% 
rh52  DOUBLE  Relative height metrics at 52% 
rh53  DOUBLE  Relative height metrics at 53% 
rh54  DOUBLE  Relative height metrics at 54% 
rh55  DOUBLE  Relative height metrics at 55% 
rh56  DOUBLE  Relative height metrics at 56% 
rh57  DOUBLE  Relative height metrics at 57% 
rh58  DOUBLE  Relative height metrics at 58% 
rh59  DOUBLE  Relative height metrics at 59% 
rh60  DOUBLE  Relative height metrics at 60% 
rh61  DOUBLE  Relative height metrics at 61% 
rh62  DOUBLE  Relative height metrics at 62% 
rh63  DOUBLE  Relative height metrics at 63% 
rh64  DOUBLE  Relative height metrics at 64% 
rh65  DOUBLE  Relative height metrics at 65% 
rh66  DOUBLE  Relative height metrics at 66% 
rh67  DOUBLE  Relative height metrics at 67% 
rh68  DOUBLE  Relative height metrics at 68% 
rh69  DOUBLE  Relative height metrics at 69% 
rh70  DOUBLE  Relative height metrics at 70% 
rh71  DOUBLE  Relative height metrics at 71% 
rh72  DOUBLE  Relative height metrics at 72% 
rh73  DOUBLE  Relative height metrics at 73% 
rh74  DOUBLE  Relative height metrics at 74% 
rh75  DOUBLE  Relative height metrics at 75% 
rh76  DOUBLE  Relative height metrics at 76% 
rh77  DOUBLE  Relative height metrics at 77% 
rh78  DOUBLE  Relative height metrics at 78% 
rh79  DOUBLE  Relative height metrics at 79% 
rh80  DOUBLE  Relative height metrics at 80% 
rh81  DOUBLE  Relative height metrics at 81% 
rh82  DOUBLE  Relative height metrics at 82% 
rh83  DOUBLE  Relative height metrics at 83% 
rh84  DOUBLE  Relative height metrics at 84% 
rh85  DOUBLE  Relative height metrics at 85% 
rh86  DOUBLE  Relative height metrics at 86% 
rh87  DOUBLE  Relative height metrics at 87% 
rh88  DOUBLE  Relative height metrics at 88% 
rh89  DOUBLE  Relative height metrics at 89% 
rh90  DOUBLE  Relative height metrics at 90% 
rh91  DOUBLE  Relative height metrics at 91% 
rh92  DOUBLE  Relative height metrics at 92% 
rh93  DOUBLE  Relative height metrics at 93% 
rh94  DOUBLE  Relative height metrics at 94% 
rh95  DOUBLE  Relative height metrics at 95% 
rh96  DOUBLE  Relative height metrics at 96% 
rh97  DOUBLE  Relative height metrics at 97% 
rh98  DOUBLE  Relative height metrics at 98% 
rh99  DOUBLE  Relative height metrics at 99% 
rh100  DOUBLE  Relative height metrics at 100% 
Terms of Use
Terms of Use
This dataset is in the public domain and is available without restriction on use and distribution. See NASA's Earth Science Data & Information Policy for additional information.
Citations
GEDI L2A Elevation and Height Metrics Data Global Footprint Level  GEDI02_A Dubayah, R., M. Hofton, J. Blair, J. Armston, H. Tang, S. Luthcke. GEDI L2A Elevation and Height Metrics Data Global Footprint Level V002. 2021, distributed by NASA EOSDIS Land Processes DAAC. Accessed YYYYMMDD.
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.FeatureCollection('LARSE/GEDI/GEDI02_A_002/GEDI02_A_2021244154857_O15413_04_T05622_02_003_02_V002'); dataset = dataset.style({color: 'black', pointSize: 1}); Map.setCenter(64.88, 31.77, 15); Map.addLayer(dataset);