Get GEDI Elevation and Height Metrics (GEDI Level2A)
This function extracts Elevation and Relative Height (RH) metrics from GEDI Level2A data.
getLevel2AM(level2a)
level2a |
A GEDI Level2A object (output of |
Characteristics. Flag indicating likely invalid waveform (1=valid, 0=invalid).
beam Beam identifie
shot_number Shot number
degrade_flag Flag indicating degraded state of pointing and/or positioning information
quality_flag Flag simplifying selection of most useful data
delta_time Transmit time of the shot since Jan 1 00:00 2018
sensitivity Maxmimum canopy cover that can be penetrated
solar_elevation Solar elevation
lat_lowestmode Latitude of center of lowest mode
lon_lowestmode Longitude of center of lowest mode
elev_highestreturn Elevation of highest detected return relative to reference ellipsoid Meters
elev_lowestmode Elevation of center of lowest mode relative to reference ellipsoid
rh Relative height metrics at 1% interval
Returns an S4 object of class data.table-class
containing the elevation and relative heights metrics.
https://lpdaac.usgs.gov/products/gedi02_av001/
# Specifying the path to GEDI level2A data (zip file)
outdir = tempdir()
level2A_fp_zip <- system.file("extdata",
"GEDI02_A_2019108080338_O01964_T05337_02_001_01_sub.zip",
package="rGEDI")
# Unzipping GEDI level2A data
level2Apath <- unzip(level2A_fp_zip,exdir = outdir)
# Reading GEDI level2A data (h5 file)
level2a<-readLevel2A(level2Apath=level2Apath)
# Extracting GEDI Elevation and Height Metrics
level2AM<-getLevel2AM(level2a)
head(level2AM)
close(level2a)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.