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clipLevel2AM

Clip GEDI Elevation and Height Metrics by Coordinates


Description

This function clips GEDI Level2A extracted Elevation and Height Metrics (Level2AM) within a given bounding coordinates

Usage

clipLevel2AM(level2AM, xmin, xmax, ymin, ymax)

Arguments

level2AM

A GEDI Level2A object (output of readLevel2A function). An S4 object of class "gedi.level2a".

xmin

Numeric. West longitude (x) coordinate of bounding rectangle, in decimal degrees.

xmax

Numeric. East longitude (x) coordinate of bounding rectangle, in decimal degrees.

ymin

Numeric. South latitude (y) coordinate of bounding rectangle, in decimal degrees.

ymax

Numeric. North latitude (y) coordinate of bounding rectangle, in decimal degrees.

Value

Returns an S4 object of class data.table-class containing the clipped elevation and relative heights metrics.

See Also

https://lpdaac.usgs.gov/products/gedi02_av001/

Examples

# 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)

# Bounding rectangle coordinates
xmin = -44.15036
xmax = -44.10066
ymin = -13.75831
ymax = -13.71244

# Clipping GEDI data by boundary box extent
level2AM_clip <- clipLevel2AM(level2AM,xmin, xmax, ymin, ymax)

close(level2a)

rGEDI

NASA's Global Ecosystem Dynamics Investigation (GEDI) Data Visualization and Processing

v0.1.11
GPL-3
Authors
Carlos Alberto Silva [aut, cre, cph], Caio Hamamura [aut, cph], Ruben Valbuena [aut, ctb], Steven Hancock [aut, ctb], Adrian Cardil [aut, ctb], Eben North Broadbent [aut, ctb], Danilo Roberti Alves de Almeida [aut, ctb], Celso H. L. Silva Junior [aut, ctb], Carine Klauberg [aut, ctb], Burton Garbow [cph] (Is the author of the MINPACK-1 Least Squares Fitting Library), Kenneth Hillstrom [cph] (Is the author of the MINPACK-1 Least Squares Fitting Library), Jorge More [cph] (Is the author of the MINPACK-1 Least Squares Fitting Library), Craig Markwardt [cph] (Is the author of the enhanced MINPACK-1 Least Squares Fitting Library)
Initial release

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