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Handler for data sets from Earthdata providers, using the STAC catalogue to do the initial search

Source: R/earthdata_stac_handler.R
bb_handler_earthdata_stac.Rd

This is a handler function to be used with data sets from NASA's Earthdata system. This function is not intended to be called directly, but rather is specified as a method option in bb_source. This function finds the items to download via the STAC catalog, and then uses bb_rget to download them. Data sources using this function can provide appropriate bb_rget parameters if required. The method arguments accepted by bb_handler_aws_s3 are currently:

  • "stac_id" string: the STAC identifier

  • "collection_id" string: the collection identifier

Usage

bb_handler_earthdata_stac(...)

Arguments

...

: parameters, see Description

Value

A tibble with columns ok, files, message

References

https://wiki.earthdata.nasa.gov/display/EL/How+To+Register+With+Earthdata+Login

Examples

if (FALSE) { # \dontrun{

my_source <- bb_source(
  name = "Nimbus Ice Edge Points from Nimbus Visible Imagery",
  id = "10.5067/NIMBUS/NmIcEdg2",
  description = "This data set (NmIcEdg2) ... [truncated; see sources_seaice()]",
  doc_url = "http://nsidc.org/data/nmicedg2/",
  citation = "Gallaher D and Campbell G ... [truncated; see sources_seaice()]",
  license = "Please cite, see http://nsidc.org/about/use_copyright.html",
  authentication_note = "Requires Earthdata login, see https://urs.earthdata.nasa.gov/.
    Note that you will also need to authorize the application 'nsidc-daacdata'
    (see 'My Applications' at https://urs.earthdata.nasa.gov/profile)",
  method = list("bb_handler_earthdata_stac", stac_id = "NSIDC_CPRD",
    collection_id = "NmIcEdg2_1"),
  user = "your_earthdata_username",
  password = "your_earthdata_password",
  collection_size = 0.02)
} # }