footprint: Human footprint

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Human footprint

Description

The "human footprint" is an estimate of the direct and indirect human pressures on the environment. The human pressure is measured using eight variables including built-up environments, population density, electric power infrastructure, crop lands, pasture lands, roads, railways, and navigable waterways. It is expressed on a scale of 0 (low) to 50 (high footprint).

See https://www.nature.com/articles/sdata201667 for the details.

The original data are available here:

https://sedac.ciesin.columbia.edu/data/collection/wildareas-v3

Data are available for two years: 1993 and 2009, for all terrestrial areas except Antarctica. The footprint of seas and oceans was set to zero. The original data was in the Mollweide projection at a 1000 m spatial resolution. The data available through this function was transformed to a longitude/latitude grid at 30-seconds resolution.

Users are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.

Usage

footprint(year=2009, path, ...) 

Arguments

year	character. "1993" or "2009"
path	character. Path for storing the downloaded data. See geodata_path
...	additional arguments passed to download.file

Value

SpatRaster

References

Venter, O., E. W. Sanderson, A. Magrach, J. R. Allan, J. Beher, K. R. Jones, H. P. Possingham, W. F. Laurance, P. Wood, B. M. Fekete, M. A. Levy, and J. E. Watson. 2016. Sixteen Years of Change in the Global Terrestrial Human Footprint and Implications for Biodiversity Conservation. Nature Communications 7:12558. https://doi.org/10.1038/ncomms12558.

See Also

landcover

geodata documentation built on June 22, 2024, 10:30 a.m.