removeRelief: removeRelief

Description Usage Arguments Details

Description

Remove underlying orography from a RB3D-class dataset using a digital elevation model (DEM) of class RasterLayer that is georeferenced to RB3D-class.

Usage

1
removeRelief(x = "RB3D", DEM = "RasterLayer", ...)

Arguments

x

RB3D-class type object.

DSM

RasterLayer type object with height above ground level (m) and - preferably - a finer

BOAextrapolation

Character. When the 3D radiative budget is height-adjusted, the BOA layer is no longer plane-parallel with the ground. How to make the BOA layer plane-parallel with the ground? One of "extrapolate" or "clip". Extrapolate: the highest BOA cell with a recorded value is the new BOA layer. Other cells in this horizontal layer may be empty and are filled using values from lower vertical layers (most accurate, most cells, most memory). Clip: the first BOA cell where all cells in its horizontal layer have a recorded value is the new BOA layer. All cells above this layer are removed. (Least accurate, least cells, least memory).

'maxUndergroundCells'

Integer. How many cells below the "ground" should be kept? I.e. the 3D RB array will be offset with Z=0 as the new ground level, and Z=-maxUndergroundCells as the lowest elevation to keep. Cells below -maxUndergroundCells are removed as this saves a lot of memory. If there is lots of small-scale variation in topography then this parameter should be relaxed at the expense of array size and memory usage.

Details

Remove underlying orography


willmorrison1/daRt documentation built on Feb. 23, 2022, 2:13 a.m.