Fields Within the Gedi Cal/Val DataΒΆ

Last updated: 2020-06-30

The Global Ecosystem Dynamics Investigation (GEDI) Forest Structure and Biomass Database (FSBD) is a collection of field and LiDAR datasets developed to serve a central repository for calibration and validation of the GEDI mission data. The GEDI Cal/Val Field Data collection contains the field data contributions to the FSBD. The database has contributions across the globe for a variety of vegetation types from projects dating back to 2003.

The table below describes the variables found in the files:

variable units description
plot NA name of plot
subplot NA subplot identifier
survey NA name of survey event
private NA data privacy (1=private, 0=public)
date NA date of survey event
region NA region of plot location: Eu=Europe; As=Asia; Au=Australia/New Zealand; Af=Africa; SEAsia=South East Asia; SA=South/Central America; US=United States)
vegetation NA vegetation type where sampled: Sav = Savannah; TropRF = Tropical rainforest; TempRF = Temperate rainforest; TropSF = Tropical seasonal forest; TempF = Temperate forest; BorF = Boreal forest; Wo = Woodland; Gr = Grassland; Sh = Shrubland; De = Desert
map mm mean annual rainfall
mat deg mean annual temperature
pft.modis NA plant functional type from the nearest MCD12Q1 product date
pft.name NA plant functional type from field descriptions or other ancillary data
wwf.ecoregion NA Terrestrial ecoregion from the WWF Olson et al. (2004) terrestrial ecoregions of the globe
latitude deg latitude of location where sampled (-90 to 90 deg South to North)
longitude deg longitude of location where sampled (-180 to 180 deg West to East)
p.sample NA subplot type: 0=independent fixed area plots; 1=variable area plots; 2=multiple fixed area plots for aggregation; 3=variable radius sampling
p.stemmap NA stem mapped plot (1=TRUE,0=FALSE)
p.origin NA origin of the plot, SW has to be interpreted as the lower left corner relative to the orientation
p.orientation deg orientation of plot degrees clockwise from UTM map grid north
p.shape NA plot shape (E=ellipse, R=rectangle)
p.majoraxis m major axis of plot
p.minoraxis m minor axis of plot
p.geom m plot geometry WKT string
p.epsg NA epsg code of the UTM zone used for the tree coordinates
p.area m2 plot polygon area
p.mindiam m minimum tree diameter measured across all subplots
sp.geom m subplot geometry WKT string
sp.ix NA subplot track index
sp.iy NA subplot pulse index
sp.shape NA subplot shape (E=ellipse, R=rectangle)
sp.area m2 subplot area
sp.mindiam m minimum tree diameter measured for the subplot
pai m2/m2 plant area index of vegetation
lai m2/m2 leaf area index of vegetation
cover NA vertically projected canopy cover (1-Pgap)
dft NA dominant plant functional type: EA = evergreen angiosperm; DA = deciduous angiosperm; EG = evergreen gymnosperm; DG = deciduous gymnosperm
agb kg mass of above-ground standing trees and shrubs
agb.valid NA valid above ground mass prediction (1=TRUE,0=FALSE)
agb.lower kg lower limit of standard error of mass of above-ground standing trees and shrubs
agb.upper kg upper limit of standard error of mass of above-ground standing trees and shrubs
agbd.ha Mg/ha mass density of above-ground standing trees and shrubs
agbd.ha.lower Mg/ha lower limit of standard error of mass density of above-ground standing trees and shrubs
agbd.ha.upper Mg/ha upper limit of standard error of mass density of above-ground standing trees and shrubs
sn n plot stem number
snd.ha n/ha plot stem number density
sba m2 plot stand basal area
sba.ha m2/ha plot stand basal area per hectare
swsg.ba g/cm3/m2 basal-area-weighted wood specific gravity
h.t.max m maximum total height of plants from ground to highest leaf
sp.agb kg subplot mass of above-ground standing trees and shrubs
sp.agb.valid NA valid subplot above ground mass prediction (1=TRUE,0=FALSE)
sp.agbd.ha Mg/ha subplot mass density of above-ground standing trees and shrubs
sp.agbd.ha.lower Mg/ha subplot lower limit of standard error of mass density of above-ground standing trees and shrubs
sp.agbd.ha.upper Mg/ha subplot upper limit of standard error of mass density of above-ground standing trees and shrubs
sp.sba.ha m2/ha subplot stand basal area per hectare
sp.swsg.ba g/cm3/m2 subplot basal-area-weighted wood specific gravity
sp.h.t.max m subplot maximum total height of plants from ground to highest leaf
l.project NA name of the lidar project dataset on UMD servers
l.instr NA lidar instrument manufacturer and model
l.epsg NA epsg code of the corresponding lidar data
l.date NA date of the corresponding lidar acquisition
g.fp NA geometry collection WKT string of GEDI lidar footprint center locations
tree.date NA date of tree measurement
family NA latin name of botanical family
species NA latin name of species (genus species)
pft NA plant functional type: EA = evergreen angiosperm; DA = deciduous angiosperm; EG = evergreen gymnosperm; DG = deciduous gymnosperm
wsg g/cm3 the ratio of wood density to water
wsg.sd g/cm3 standard deviation of WSG sample values
tree NA tree identifier
stem NA stem identifier
x m easting UTM coordinate
y m northing UTM coordinate
z m elevation relative to geoid coordinate
status NA live tree (1=TRUE,0=FALSE)
allom.key NA key to allometric LUT
a.stem m2 area of total stem cross-section at measurement height
h.t m total height of plant from ground to highest leaf
h.t.mod NA tree heights modelled using local or regional DBH-Ht relationship
d.stem m diameter of stem at measurement height
d.stem.valid NA valid tree diameter to use in AGB calculation (1=TRUE,0=FALSE)
d.ht m height at which stem diameter was measured
c.w m diameter or width of crown
m.agb kg mass of above-ground components of tree