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Handler for US National Ice Center charts

Source: R/natice_handler.R
bb_handler_usnic.Rd

This is a handler function to be used with US National Ice Center charts from https://usicecenter.gov/Products/AntarcHome. This function is not intended to be called directly, but rather is specified as a method option in bb_source.

Usage

bb_handler_usnic(...)

Arguments

...

: parameters passed to bb_rget

Value

TRUE on success

Details

Note that the USNIC server does not support timestamp operations on requests, so it is not possible to download only files that have changed since last downloaded. Bowerbird configurations with clobber = 1 (download if modified) are likely to download all files, even if those files exist locally and have not changed since last download. Consider using clobber = 0 (don't download if file already exists).

This handler can take a method argument as specified in the bb_source constructor:

  • chart_type string: either "filled" [default] or "vector"

References

https://usicecenter.gov/Products/AntarcHome