| nc_open_CGLS {RCGLS} | R Documentation |
Open netcdf CGLS data
Description
Opens single orginal data files/layers of Copernicus Global as netCDF filesLand Service as netCDF files without adjusting coordinates. Coordinate adjustment is necessary as R uses upper left corner as pixel reference and Copernicus uses pixel centre. Also see: https://land.copernicus.eu/global/products/.
Usage
nc_open_CGLS(date, product, resolution, version)
Arguments
date |
Date of interest, for example for 13 june 2019: 2019-06-13 |
product |
Product name: fapar, fcover, lai, ndvi, ss, swi, lst, ... |
resolution |
1km, 300m or 100m |
version |
Version number: v1, v2, v3,... |
Details
Adjusting coordinates is a necessary step to use the data because Copernicus nc files have lat/long belonging to the centre of the pixel, and R uses upper/left corner. This function opens the data without any corrections.
Value
CGLS data Opens single netcdf file in environment
Note
Coordinates are shifted and need to be adjusted, for example by: if(resolution == "300m") lon <- lon - (1/336)/2 lat <- lat + (1/336)/2 if(resolution == "1km") lon <- lon - (1/112)/2 lat <- lat + (1/112)/2
Examples
## Not run:
library(ncdf4)
DATE <- "2019-06-13" #Date of interest, for example for 13 june 2019: 2019-06-13
PROD <- "fapar" #Product name: fapar, fcover, lai, ndvi, ss, swi, lst, ...
RES <- "1km" #1km, 300m or 100m
V <- "v1" #Version number: v1, v2, v3, ...
nc <- nc_open_CGLS (date=DATE, product=PROD, resolution=RES, version=V)
## End(Not run)