pr_fm_pep725: Formatting PEP725 data

In bluegreen-labs/phenor: An R phenology Modelling Framework

Formatting PEP725 data

Description

Some pre-processing steps are required as downloading the PEP725. So, for the species of interest download the separate zipped files. Unzip all files and put the respective scientific data in one folder.

Usage

pr_fm_pep725(
  pep_path = tempdir(),
  eobs_path = tempdir(),
  bbch = "11",
  species = NULL,
  offset = 264,
  count = 60,
  resolution = 0.25,
  pep_data
)

Arguments

pep_path	path to the PEP725 data (species files only)
eobs_path	path to regular grid E-OBS data.
bbch	which phenophase (bbch) to use (default = 11)
species	species to select from merged PEP725 file
offset	offset of the time series in DOY (default = 264, sept 21)
count	minimum number of acquisitions per location
resolution	resolution of the E-OBS data (0.25 or 0.5, default = 0.25)
pep_data	prefiltered subset of the merged PEP725 data obtained through merge_PEP725(), else the complete data contained in pep_path will be used

Details

The routine requires E-OBS climate, which can be downloaded from the E-OBS website and should be put unzipped in a single folder. (http://www.ecad.eu/download/ensembles/ensembles.php).

BBCH list: https://www.reterurale.it/downloads/BBCH_engl_2001.pdf

Value

returns a nested list of site locations, their respective phenological metrics and matching environmental data as extracted from the E-OBS product (corrected for altitude using a lapse rate of 5C/km.)

Examples

# run with default settings
# looks for transition date files derived
# through phenocamr in your home directory
# change the path to match your setup
## Not run: 
phenocam_data = pr_fm_pep725(pep_path = "~/pep_data/",
                              eobs_path = "~/eobs_data/")

## End(Not run)

bluegreen-labs/phenor documentation built on Sept. 2, 2023, 10:34 a.m.