Terrestrial Wilderness (2009)

Terrestrial wilderness is derived from the Human Footprint (terrestrial) for years 1993 and 2009. Wilderness is defined as contiguous areas larger than 10,000 km sq where HFP values are less than 1. As such, the definition of wilderness doesn't preclude human presence in an area, only more significant impacts often resultant from increased human presence. Datasets present here include global wilderness areas in 1993, 2009, and a map of the wilderness areas present in 1993 than were lost by 2009.

See: Watson JEM, Shanahan DF, Di Marco M, Allan J, Laurance WF, Sanderson EW, et al. Catastrophic Declines in Wilderness Areas Undermine Global Environment Targets. Current Biology. 2016;26: 2929–2934 [https://www.cell.com/current-biology/abstract/S0960-9822(16)30993-9].