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

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LARSE/GEDI/GEDI02_B_002_MONTHLY
Dataset Availability
2019-03-25T00:00:00Z–2022-06-01T08:00:00
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("LARSE/GEDI/GEDI02_B_002_MONTHLY")
Tags
elevation gedi larse nasa treecover 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 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.

Product Description
GEDI L2A Vector LARSE/GEDI/GEDI02_A_002
GEDI L2A Monthly raster LARSE/GEDI/GEDI02_A_002_MONTHLY
GEDI L2A table index LARSE/GEDI/GEDI02_A_002_INDEX
GEDI L2B Vector LARSE/GEDI/GEDI02_B_002
GEDI L2B Monthly raster LARSE/GEDI/GEDI02_B_002_MONTHLY
GEDI L2B table index LARSE/GEDI/GEDI02_B_002_INDEX
GEDI L4B Biomass LARSE/GEDI/GEDI04_B_002

Bands

Resolution
25 meters

Bands

Name Units Min Max Description
algorithmrun_flag 0 1

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

Beam number

cover Percent 0 1

Total canopy cover

degrade_flag 0 99

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

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

fhd_normal

Foliage Height Diversity

l2b_quality_flag Quality Flag 0 1

L2B quality flag

local_beam_azimuth radians -180 180

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

local_beam_elevation radians 1.39 1.57

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

pai m^2/m^2

Total Plant Area Index

pgap_theta 0 1

Total Gap Probability (theta)

selected_l2a_algorithm 1 6

Selected L2A algorithm setting

selected_rg_algorithm 0 99

Selected R (ground) algorithm

sensitivity 0 1

Maxmimum canopy cover that can be penetrated

solar_azimuth Degrees -180 180

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 Degrees -90 90

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

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

Shot number within beam

cover_z0 Percent 0 1

Cumulative canopy cover vertical profile at 0%

cover_z1 Percent 0 1

Cumulative canopy cover vertical profile at 1%

cover_z2 Percent 0 1

Cumulative canopy cover vertical profile at 2%

cover_z3 Percent 0 1

Cumulative canopy cover vertical profile at 3%

cover_z4 Percent 0 1

Cumulative canopy cover vertical profile at 4%

cover_z5 Percent 0 1

Cumulative canopy cover vertical profile at 5%

cover_z6 Percent 0 1

Cumulative canopy cover vertical profile at 6%

cover_z7 Percent 0 1

Cumulative canopy cover vertical profile at 7%

cover_z8 Percent 0 1

Cumulative canopy cover vertical profile at 8%

cover_z9 Percent 0 1

Cumulative canopy cover vertical profile at 9%

cover_z10 Percent 0 1

Cumulative canopy cover vertical profile at 10%

cover_z11 Percent 0 1

Cumulative canopy cover vertical profile at 11%

cover_z12 Percent 0 1

Cumulative canopy cover vertical profile at 12%

cover_z13 Percent 0 1

Cumulative canopy cover vertical profile at 13%

cover_z14 Percent 0 1

Cumulative canopy cover vertical profile at 14%

cover_z15 Percent 0 1

Cumulative canopy cover vertical profile at 15%

cover_z16 Percent 0 1

Cumulative canopy cover vertical profile at 16%

cover_z17 Percent 0 1

Cumulative canopy cover vertical profile at 17%

cover_z18 Percent 0 1

Cumulative canopy cover vertical profile at 18%

cover_z19 Percent 0 1

Cumulative canopy cover vertical profile at 19%

cover_z20 Percent 0 1

Cumulative canopy cover vertical profile at 20%

cover_z21 Percent 0 1

Cumulative canopy cover vertical profile at 21%

cover_z22 Percent 0 1

Cumulative canopy cover vertical profile at 22%

cover_z23 Percent 0 1

Cumulative canopy cover vertical profile at 23%

cover_z24 Percent 0 1

Cumulative canopy cover vertical profile at 24%

cover_z25 Percent 0 1

Cumulative canopy cover vertical profile at 25%

cover_z26 Percent 0 1

Cumulative canopy cover vertical profile at 26%

cover_z27 Percent 0 1

Cumulative canopy cover vertical profile at 27%

cover_z28 Percent 0 1

Cumulative canopy cover vertical profile at 28%

cover_z29 Percent 0 1

Cumulative canopy cover vertical profile at 29%

cover_z30 Percent 0 1

Cumulative canopy cover vertical profile at 30%

pai_z0 m^2/m^2

Plant Area Index profile in 0 m²/m²

pai_z1 m^2/m^2

Plant Area Index profile in 1 m²/m²

pai_z2 m^2/m^2

Plant Area Index profile in 2 m²/m²

pai_z3 m^2/m^2

Plant Area Index profile in 3 m²/m²

pai_z4 m^2/m^2

Plant Area Index profile in 4 m²/m²

pai_z5 m^2/m^2

Plant Area Index profile in 5 m²/m²

pai_z6 m^2/m^2

Plant Area Index profile in 6 m²/m²

pai_z7 m^2/m^2

Plant Area Index profile in 7 m²/m²

pai_z8 m^2/m^2

Plant Area Index profile in 8 m²/m²

pai_z9 m^2/m^2

Plant Area Index profile in 9 m²/m²

pai_z10 m^2/m^2

Plant Area Index profile in 10 m²/m²

pai_z11 m^2/m^2

Plant Area Index profile in 11 m²/m²

pai_z12 m^2/m^2

Plant Area Index profile in 12 m²/m²

pai_z13 m^2/m^2

Plant Area Index profile in 13 m²/m²

pai_z14 m^2/m^2

Plant Area Index profile in 14 m²/m²

pai_z15 m^2/m^2

Plant Area Index profile in 15 m²/m²

pai_z16 m^2/m^2

Plant Area Index profile in 16 m²/m²

pai_z17 m^2/m^2

Plant Area Index profile in 17 m²/m²

pai_z18 m^2/m^2

Plant Area Index profile in 18 m²/m²

pai_z19 m^2/m^2

Plant Area Index profile in 19 m²/m²

pai_z20 m^2/m^2

Plant Area Index profile in 20 m²/m²

pai_z21 m^2/m^2

Plant Area Index profile in 21 m²/m²

pai_z22 m^2/m^2

Plant Area Index profile in 22 m²/m²

pai_z23 m^2/m^2

Plant Area Index profile in 23 m²/m²

pai_z24 m^2/m^2

Plant Area Index profile in 24 m²/m²

pai_z25 m^2/m^2

Plant Area Index profile in 25 m²/m²

pai_z26 m^2/m^2

Plant Area Index profile in 26 m²/m²

pai_z27 m^2/m^2

Plant Area Index profile in 27 m²/m²

pai_z28 m^2/m^2

Plant Area Index profile in 28 m²/m²

pai_z29 m^2/m^2

Plant Area Index profile in 29 m²/m²

pai_z30 m^2/m^2

Plant Area Index profile in 30 m²/m²

pavd_z0 m^2/m^3

Plant Area Volume Density profile in 0 m²/m³

pavd_z1 m^2/m^3

Plant Area Volume Density profile in 1 m²/m³

pavd_z2 m^2/m^3

Plant Area Volume Density profile in 2 m²/m³

pavd_z3 m^2/m^3

Plant Area Volume Density profile in 3 m²/m³

pavd_z4 m^2/m^3

Plant Area Volume Density profile in 4 m²/m³

pavd_z5 m^2/m^3

Plant Area Volume Density profile in 5 m²/m³

pavd_z6 m^2/m^3

Plant Area Volume Density profile in 6 m²/m³

pavd_z7 m^2/m^3

Plant Area Volume Density profile in 7 m²/m³

pavd_z8 m^2/m^3

Plant Area Volume Density profile in 8 m²/m³

pavd_z9 m^2/m^3

Plant Area Volume Density profile in 9 m²/m³

pavd_z10 m^2/m^3

Plant Area Volume Density profile in 10 m²/m³

pavd_z11 m^2/m^3

Plant Area Volume Density profile in 11 m²/m³

pavd_z12 m^2/m^3

Plant Area Volume Density profile in 12 m²/m³

pavd_z13 m^2/m^3

Plant Area Volume Density profile in 13 m²/m³

pavd_z14 m^2/m^3

Plant Area Volume Density profile in 14 m²/m³

pavd_z15 m^2/m^3

Plant Area Volume Density profile in 15 m²/m³

pavd_z16 m^2/m^3

Plant Area Volume Density profile in 16 m²/m³

pavd_z17 m^2/m^3

Plant Area Volume Density profile in 17 m²/m³

pavd_z18 m^2/m^3

Plant Area Volume Density profile in 18 m²/m³

pavd_z19 m^2/m^3

Plant Area Volume Density profile in 19 m²/m³

pavd_z20 m^2/m^3

Plant Area Volume Density profile in 20 m²/m³

pavd_z21 m^2/m^3

Plant Area Volume Density profile in 21 m²/m³

pavd_z22 m^2/m^3

Plant Area Volume Density profile in 22 m²/m³

pavd_z23 m^2/m^3

Plant Area Volume Density profile in 23 m²/m³

pavd_z24 m^2/m^3

Plant Area Volume Density profile in 24 m²/m³

pavd_z25 m^2/m^3

Plant Area Volume Density profile in 25 m²/m³

pavd_z26 m^2/m^3

Plant Area Volume Density profile in 26 m²/m³

pavd_z27 m^2/m^3

Plant Area Volume Density profile in 27 m²/m³

pavd_z28 m^2/m^3

Plant Area Volume Density profile in 28 m²/m³

pavd_z29 m^2/m^3

Plant Area Volume Density profile in 29 m²/m³

pavd_z30 m^2/m^3

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.

Explore in Earth Engine

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');