The copernicus package allows to download data from the COPERNICUS data portal through the fast HTTP access (the so called 'data pool': http://land.copernicus.vgt.vito.be/PDF/datapool/). The user should be registered to access data.
download_copernicus wil download zip files on the data portal based on an extent or given tiles (h,v) pairs and a product name.
Only the following products are available: 'NDVI_1km_V1' (Normalized Difference Vegetation Index - VGT instrument),
'NDVI_1km_V2' (Normalized Difference Vegetation Index - PROBAV instrument),'LAI' (Leaf Area Index),'FCOVER' (Fraction of Vegetation Green Cover),
'FAPAR' (Fraction of Absorbed Photosynthetically Active Radiation),'VCI' (Vegetation Condition Index),'VPI' (Vegetation Productivity Index),
'DMP' (Dry Matter Productivity),'BA' (Burnt Areas).
The availability of the data between two dates can be checked with
check_time_copernicus and at a given location with
One can get the URL's of images for a given time period, location and product name with
Information included in the name of the files (e.g. aglorithm version, instrument) can be retrieved with
The COPERNICUS tiling system can be created with
gen_tile_copernicus and fetched with
which will retrieve tiles info (h,v,bounding box in LatLon) based on an extent or (h,v) pair.
File conversion can be done with
extract_copernicus, which will transfrom raw h5 files to tif, by converting DN to physical values
using the associated gain and offset of each product. The function can further subset data on a given extent, resample to a given resolution
and project to a given coordinate system. One can also choose which layers of the h5 files can be extracted. This function requires to
Quality Flags can be extracted with
In addition to data access and extraction,
copernicus allows to compare the spatial and temporal agreement between two
RasterBrick or RasterStack objects, see
Some of the package default options are set with
copernicus_options, such as the download path, user name and password.
Pieces of code are taken/inspired from the MODIS package (v0.10-31): https://r-forge.r-project.org/R/?group_id=1252), Function arguments follow the same naming as in MODIS, as much as possible.
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