Get the ice mask for a dataset.Source:
Get the ice mask for a dataset, either for the whole series or for specific time points.
time slices in years before present (negative values represent time before present, positive values time in the future). This parameter can be a vector of times (the slices need to exist in the dataset), a list with a min and max element setting the range of values, or left to NULL to retrieve all time steps. To check which slices are available, you can use
string defining dataset to be downloaded (a list of possible values can be obtained with
list_available_datasets()). This function will not work on custom datasets.
terra::SpatRaster with the ice mask as 1s