GEDI L2B Raster Canopy Cover Vertical Profile Metrics (Version 2)

    LARSE/GEDI/GEDI02_B_002_MONTHLY
    Dataset Availability
    2019-03-25T00:00:00Z–2024-11-01T08:00:00Z
    Dataset Provider
    Earth Engine Snippet
    ee.ImageCollection("LARSE/GEDI/GEDI02_B_002_MONTHLY")
    Tags
    elevation forest-biomass gedi larse nasa tree-cover usgs

    Description

    GEDI Level 2B Canopy Cover and Vertical Profile Metrics product (GEDI02_B) extracts biophysical metrics from each GEDI waveform. These metrics are based on the directional gap probability profile derived from the L1B waveform.

    The vertical step between foliage profile measurements (known as dZ in GEDI documentation) is always 5 meters.

    The dataset LARSE/GEDI/GEDI02_B_002_MONTHLY is a raster version of the original GEDI02_B product. The raster images are organized as monthly composites of individual orbits in the corresponding month. Only root-level cover, pai and pavd values and their associated quality flags and metadata are preserved as raster bands. Each GEDI02_B_002 raster has 109 bands.

    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 3-dimensional 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 along-track.

    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

    Bands

    Pixel Size 25 meters

    Bands

    Name
    Units
    Min
    Max
    Pixel Size
    Description
    algorithmrun_flag
    0
    1
    meters

    The L2B algorithm is run if this flag is set to 1 indicating data have sufficient waveform fidelity for L2B to run.

    beam
    0
    11
    meters

    Beam number

    cover
    %
    0
    1
    meters

    Total canopy cover

    degrade_flag
    0
    99
    meters

    Flag indicating degraded state of pointing and/or positioning information.

    • 3X - ADF CHU solution unavailable (ST-2)
    • 4X - Platform attitude
    • 5X - Poor solution (filter covariance large)
    • 6X - Data outage (platform attitude gap also)
    • 7X - ST 1+2 unavailable (similar boresight FOV)
    • 8X - ST 1+2+3 unavailable
    • 9X - ST 1+2+3 and ISS unavailable
    • X1 - Maneuver
    • X2 - GPS data gap
    • X3 - ST blinding
    • X4 - Other
    • X5 - GPS receiver clock drift
    • X6 - Maneuver & GPS receiver clock drift
    • X7 - GPS data gap & GPS receiver clock drift
    • X8 - ST blinding & GPS receiver clock drift
    • X9 - Other & GPS receiver clock drift
    delta_time
    seconds
    meters

    Transmit time of the shot, measured in seconds from the master_time_epoch since 2018-01-01

    fhd_normal
    meters

    Foliage Height Diversity

    l2b_quality_flag
    Quality Flag
    0
    1
    meters

    L2B quality flag

    local_beam_azimuth
    rad
    -180
    180
    meters

    Azimuth of the unit pointing vector for the laser in the local ENU frame measured from North and positive towards East.

    local_beam_elevation
    rad
    1.39
    1.57
    meters

    Elevation of the unit pointing vector for the laser in the local ENU frame measured from East-North plane and positive towards Up.

    pai
    Area fraction
    meters

    Total Plant Area Index

    pgap_theta
    0
    1
    meters

    Total Gap Probability (theta)

    selected_l2a_algorithm
    1
    6
    meters

    Selected L2A algorithm setting

    selected_rg_algorithm
    0
    99
    meters

    Selected R (ground) algorithm

    sensitivity
    0
    1
    meters

    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 non-land surface waveforms.

    solar_azimuth
    deg
    -180
    180
    meters

    The azimuth of the sun position vector from the laser bounce point position in the local ENU frame measured from North and is positive towards East.

    solar_elevation
    deg
    -90
    90
    meters

    The elevation of the sun position vector from the laser bounce point position in the local ENU frame measured from the East-North plane and is positive Up.

    shot_number
    meters

    Shot number, a unique identifier. This field has the format of OOOOOBBRRGNNNNNNNN, where:

    • OOOOO: Orbit number
    • BB: Beam number
    • RR: Reserved for future use
    • G: Sub-orbit granule number
    • NNNNNNNN: Shot index
    shot_number_within_beam
    meters

    Shot number within beam

    cover_z0
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 0%

    cover_z1
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 1%

    cover_z2
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 2%

    cover_z3
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 3%

    cover_z4
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 4%

    cover_z5
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 5%

    cover_z6
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 6%

    cover_z7
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 7%

    cover_z8
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 8%

    cover_z9
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 9%

    cover_z10
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 10%

    cover_z11
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 11%

    cover_z12
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 12%

    cover_z13
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 13%

    cover_z14
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 14%

    cover_z15
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 15%

    cover_z16
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 16%

    cover_z17
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 17%

    cover_z18
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 18%

    cover_z19
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 19%

    cover_z20
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 20%

    cover_z21
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 21%

    cover_z22
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 22%

    cover_z23
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 23%

    cover_z24
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 24%

    cover_z25
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 25%

    cover_z26
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 26%

    cover_z27
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 27%

    cover_z28
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 28%

    cover_z29
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 29%

    cover_z30
    %
    0
    1
    meters

    Cumulative canopy cover vertical profile at 30%

    pai_z0
    Area fraction
    meters

    Plant Area Index profile in 0 m²/m²

    pai_z1
    Area fraction
    meters

    Plant Area Index profile in 1 m²/m²

    pai_z2
    Area fraction
    meters

    Plant Area Index profile in 2 m²/m²

    pai_z3
    Area fraction
    meters

    Plant Area Index profile in 3 m²/m²

    pai_z4
    Area fraction
    meters

    Plant Area Index profile in 4 m²/m²

    pai_z5
    Area fraction
    meters

    Plant Area Index profile in 5 m²/m²

    pai_z6
    Area fraction
    meters

    Plant Area Index profile in 6 m²/m²

    pai_z7
    Area fraction
    meters

    Plant Area Index profile in 7 m²/m²

    pai_z8
    Area fraction
    meters

    Plant Area Index profile in 8 m²/m²

    pai_z9
    Area fraction
    meters

    Plant Area Index profile in 9 m²/m²

    pai_z10
    Area fraction
    meters

    Plant Area Index profile in 10 m²/m²

    pai_z11
    Area fraction
    meters

    Plant Area Index profile in 11 m²/m²

    pai_z12
    Area fraction
    meters

    Plant Area Index profile in 12 m²/m²

    pai_z13
    Area fraction
    meters

    Plant Area Index profile in 13 m²/m²

    pai_z14
    Area fraction
    meters

    Plant Area Index profile in 14 m²/m²

    pai_z15
    Area fraction
    meters

    Plant Area Index profile in 15 m²/m²

    pai_z16
    Area fraction
    meters

    Plant Area Index profile in 16 m²/m²

    pai_z17
    Area fraction
    meters

    Plant Area Index profile in 17 m²/m²

    pai_z18
    Area fraction
    meters

    Plant Area Index profile in 18 m²/m²

    pai_z19
    Area fraction
    meters

    Plant Area Index profile in 19 m²/m²

    pai_z20
    Area fraction
    meters

    Plant Area Index profile in 20 m²/m²

    pai_z21
    Area fraction
    meters

    Plant Area Index profile in 21 m²/m²

    pai_z22
    Area fraction
    meters

    Plant Area Index profile in 22 m²/m²

    pai_z23
    Area fraction
    meters

    Plant Area Index profile in 23 m²/m²

    pai_z24
    Area fraction
    meters

    Plant Area Index profile in 24 m²/m²

    pai_z25
    Area fraction
    meters

    Plant Area Index profile in 25 m²/m²

    pai_z26
    Area fraction
    meters

    Plant Area Index profile in 26 m²/m²

    pai_z27
    Area fraction
    meters

    Plant Area Index profile in 27 m²/m²

    pai_z28
    Area fraction
    meters

    Plant Area Index profile in 28 m²/m²

    pai_z29
    Area fraction
    meters

    Plant Area Index profile in 29 m²/m²

    pai_z30
    Area fraction
    meters

    Plant Area Index profile in 30 m²/m²

    pavd_z0
    m^2/m^3
    meters

    Plant Area Volume Density profile in 0 m²/m³

    pavd_z1
    m^2/m^3
    meters

    Plant Area Volume Density profile in 1 m²/m³

    pavd_z2
    m^2/m^3
    meters

    Plant Area Volume Density profile in 2 m²/m³

    pavd_z3
    m^2/m^3
    meters

    Plant Area Volume Density profile in 3 m²/m³

    pavd_z4
    m^2/m^3
    meters

    Plant Area Volume Density profile in 4 m²/m³

    pavd_z5
    m^2/m^3
    meters

    Plant Area Volume Density profile in 5 m²/m³

    pavd_z6
    m^2/m^3
    meters

    Plant Area Volume Density profile in 6 m²/m³

    pavd_z7
    m^2/m^3
    meters

    Plant Area Volume Density profile in 7 m²/m³

    pavd_z8
    m^2/m^3
    meters

    Plant Area Volume Density profile in 8 m²/m³

    pavd_z9
    m^2/m^3
    meters

    Plant Area Volume Density profile in 9 m²/m³

    pavd_z10
    m^2/m^3
    meters

    Plant Area Volume Density profile in 10 m²/m³

    pavd_z11
    m^2/m^3
    meters

    Plant Area Volume Density profile in 11 m²/m³

    pavd_z12
    m^2/m^3
    meters

    Plant Area Volume Density profile in 12 m²/m³

    pavd_z13
    m^2/m^3
    meters

    Plant Area Volume Density profile in 13 m²/m³

    pavd_z14
    m^2/m^3
    meters

    Plant Area Volume Density profile in 14 m²/m³

    pavd_z15
    m^2/m^3
    meters

    Plant Area Volume Density profile in 15 m²/m³

    pavd_z16
    m^2/m^3
    meters

    Plant Area Volume Density profile in 16 m²/m³

    pavd_z17
    m^2/m^3
    meters

    Plant Area Volume Density profile in 17 m²/m³

    pavd_z18
    m^2/m^3
    meters

    Plant Area Volume Density profile in 18 m²/m³

    pavd_z19
    m^2/m^3
    meters

    Plant Area Volume Density profile in 19 m²/m³

    pavd_z20
    m^2/m^3
    meters

    Plant Area Volume Density profile in 20 m²/m³

    pavd_z21
    m^2/m^3
    meters

    Plant Area Volume Density profile in 21 m²/m³

    pavd_z22
    m^2/m^3
    meters

    Plant Area Volume Density profile in 22 m²/m³

    pavd_z23
    m^2/m^3
    meters

    Plant Area Volume Density profile in 23 m²/m³

    pavd_z24
    m^2/m^3
    meters

    Plant Area Volume Density profile in 24 m²/m³

    pavd_z25
    m^2/m^3
    meters

    Plant Area Volume Density profile in 25 m²/m³

    pavd_z26
    m^2/m^3
    meters

    Plant Area Volume Density profile in 26 m²/m³

    pavd_z27
    m^2/m^3
    meters

    Plant Area Volume Density profile in 27 m²/m³

    pavd_z28
    m^2/m^3
    meters

    Plant Area Volume Density profile in 28 m²/m³

    pavd_z29
    m^2/m^3
    meters

    Plant Area Volume Density profile in 29 m²/m³

    pavd_z30
    m^2/m^3
    meters

    Plant Area Volume Density profile in 30 m²/m³

    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.

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    Code Editor (JavaScript) 

     var 
  
 qualityMask 
  
 = 
  
 function 
 ( 
 im 
 ) 
  
 { 
  
 return 
  
 im 
 . 
 updateMask 
 ( 
 im 
 . 
 select 
 ( 
 'l2b_quality_flag' 
 ). 
 eq 
 ( 
 1 
 )) 
  
 . 
 updateMask 
 ( 
 im 
 . 
 select 
 ( 
 'degrade_flag' 
 ). 
 eq 
 ( 
 0 
 )); 
 }; 
 var 
  
 dataset 
  
 = 
  
 ee 
 . 
 ImageCollection 
 ( 
 'LARSE/GEDI/GEDI02_B_002_MONTHLY' 
 ) 
  
 . 
 map 
 ( 
 qualityMask 
 ) 
  
 . 
 select 
 ( 
 'solar_elevation' 
 ); 
 var 
  
 gediVis 
  
 = 
  
 { 
  
 min 
 : 
  
 1 
 , 
  
 max 
 : 
  
 60 
 , 
  
 palette 
 : 
  
 'red, green, blue' 
 , 
 }; 
 Map 
 . 
 setCenter 
 ( 
 12.60033 
 , 
  
 51.01051 
 , 
  
 12 
 ); 
 Map 
 . 
 addLayer 
 ( 
 dataset 
 , 
  
 gediVis 
 , 
  
 'Solar Elevation' 
 );
    Open in Code Editor
    GEDI Level 2B Canopy Cover and Vertical Profile Metrics product (GEDI02_B) extracts biophysical metrics from each GEDI waveform. These metrics are based on the directional gap probability profile derived from the L1B waveform. The vertical step between foliage profile measurements (known as dZ in GEDI documentation) is always 5 meters. …
    LARSE/GEDI/GEDI02_B_002_MONTHLY, elevation,forest-biomass,gedi,larse,nasa,tree-cover,usgs
    2019-03-25T00:00:00Z/2024-11-01T08:00:00Z
    -51.6 -180 51.6 180
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