clipLevel4AGeometry

Clip GEDI Level 4A data by polygons

Provides an end-to-end workflow for NASA Global Ecosystem
Dynamics Investigation (GEDI) Level 1B, Level 2A, Level 2B, Level 3, Level
4A, and Level 4B data. Functions search NASA catalogues, download granules,
stream HDF5 products from Earthdata Cloud, and extract geolocations,
waveforms, elevation and relative-height metrics, canopy cover, plant area
profiles, and aboveground biomass. Methods quality-filter and spatially clip
HDF5, tabular, and raster products; calculate footprint and polygon
statistics; create gridded summaries; and visualize orbital tracks and
measurements. The package also simulates GEDI-like waveforms from airborne
laser-scanning point clouds and supports spatial sampling, predictive
modelling, ancillary-data extraction, and wall-to-wall upscaling with
optional Google Earth Engine workflows.

Carlos Alberto Silva

rGEDI

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

Caio Hamamura

clipLevel4AGeometry function

<dl><dt>level4A</dt>
<dd>A <code>gedi.level4a</code> object returned by <code>readLevel4A()</code>
or a table returned by <code>getLevel4A()</code>.</dd>
<dt>polygon</dt>
<dd>An <code>sf</code>, <code>sfc</code>, or <code>SpatVector</code> polygon object.</dd>
<dt>split_by</dt>
<dd>Optional polygon attribute. For HDF5 input, one clipped
file is returned per unique value. For table input, the value is copied
to <code>poly_id</code>.</dd>
<dt>output</dt>
<dd>Optional output HDF5 path when <code>level4A</code> is a
<code>gedi.level4a</code> object. A temporary file is used by default.</dd></dl>

Arguments

Clip GEDI Level 4A data by polygons — clipLevel4AGeometry

<dl>

<dt>level4A</dt>
<dd>A <code>gedi.level4a</code> object returned by <code>readLevel4A()</code>
or a table returned by <code>getLevel4A()</code>.</dd>


<dt>polygon</dt>
<dd>An <code>sf</code>, <code>sfc</code>, or <code>SpatVector</code> polygon object.</dd>


<dt>split_by</dt>
<dd>Optional polygon attribute. For HDF5 input, one clipped
file is returned per unique value. For table input, the value is copied
to <code>poly_id</code>.</dd>


<dt>output</dt>
<dd>Optional output HDF5 path when <code>level4A</code> is a
<code>gedi.level4a</code> object. A temporary file is used by default.</dd>

</dl>

clipLevel4AGeometry: Clip GEDI Level 4A data by polygons

Description

Usage

Value

Arguments