These are web links to a folder in Data Basin, containing simulations of future vegetation types. From the description in Data Basin: "The dynamic global vegetation model MC1 was run for the North American continent using historical and future climate projections to simulate vegetation shifts, carbon gains and losses, hydrological flows, and wildfires. This work has not been published yet and should be considered as not peer reviewed. Note that we have added a file as an attachment to this gallery to provide the list of vegetation types that are simulated by the vegetation model and the category number that is associated with each type. When using the identify tool this will be useful to match number and name of the vegetation type." [...]