The aim of
copernicus is to access to the COPERNICUS Global Land Vegetation data portal.
The package provides functions to easily download, extract, convert, subset and project COPERNICUS data.
The user should be registered to access data. The package is at its early development stage. Use with care!
Please report bugs to [email protected]
One of the dependencies of
copernicus is the
It can be installed from bioconductor
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_V1_V1 (Normalized Difference Vegetation Index - VGT instrument),
NDVI_V1_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, acquisition date) 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.
Quality Flags can be extracted with
compare_raster_space allow to compare two rasterBrick or rasterStack time series in terms of their spatial and temporal consistency, following the methods explained in Meroni et al. (2012).
Some of the package default options are set with
copernicus_options, such as the download path, user name and password.
- wrapper around
- check file download integrity
- allow different output format
- change dependency from
h5 (allows partial I/O! --> speed-up!)
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