CompileDEM: Create DEM mosaic

In ECCC-MSC/Basin-Delineation: Finds upstream area and upstream stations

Description

Downloads a set of DEM tiles and moasaicks them into one SAGA grid file.

Usage

CompileDEM(DEM, DEM_dir, output_dir, force50k = F, product = "CDED")

Arguments

DEM	character vector, names of NTS tiles (e.g. '075C' or '014D03') or USGS NED 1arc-sec tiles (e.g. 'n52e104'). If specified as a 250k NTS tile (4 characters), a 250k NTS tile will be downloaded. If specified as a 50k NTS tile (6 character) then a 50k NTS tile will be downloaded.
DEM_dir	character string, path to directory where DEM tiles are stored. This function creates a nested file hierarchy that matches that of the FTP site.
output_dir	character string specifying where output file should be saved
force50k	logical, returns 50k tiles instead of 250k tiles even if the tiles are specified as 250k tiles. e.g. using "075C" would use 075C01, 075C02, 075C03 and so on. Ignored if using 'NED' as data product.
product	character, which DEM product to use. One of ('CDED', 'CDEM', 'NED')

Value

name of output DEM

Examples

CompileDEM("035D", "~", "~", "~/NTSmosaic.sdat", force50k = T)

ECCC-MSC/Basin-Delineation documentation built on June 9, 2019, 7:29 p.m.