Documents
Algorithm Theoretical Basis Documents (ATBDs) describe the physical theories, mathematical procedures and model assumptions applied in the calculation of geophysical quantities from laser altimetry measurements received by the GEDI instrument. These documents provide necessary background for users to understand and use the GEDI data products. Each ATBD corresponds to one or more GEDI data products and can be accessed in the table below.
ATBD# | ATBD name | Data products | Version | Date |
L1A-2A | Transmit and Receive Waveform Interpretation and Generation of L1A and L2A products | 1A: Raw waveforms
2A: Ground elevation, canopy top height, relative height (RH) metrics |
1.0 | 12-2019 |
L1B | Waveform Geolocation for L1 and L2 Products | Geolocated waveforms | 1.0 | 12-2019 |
L2B | Footprint Canopy Cover and Vertical Profile Metrics | Canopy Cover Fraction (CCF), CCF profile, Leaf Area Index (LAI), LAI profile | 1.0 | 12-2019 |
L3 | Gridded Land Surface Metrics | Gridded Level 2 metrics | 1.0 | TBD |
L4A | Footprint Above Ground Biomass Density | Footprint level above ground biomass | 1.0 | TBD |
L4B | Gridded Biomass Product | Gridded Above Ground Biomass Density (AGBD) | 1.0 | TBD |