crop_global_tif: crop_global_tif

In ATFutures/who-data: ATFutures development package

Description

There are no worldpop data for Europe, but the EC Joint Research Centre Data Catalogue offers 250m resolution global population density tif files. These are huge, and presumed to be downloaded into the root directory of this project. This function crops them to designated cities (actuall only Bristol at present) and deposits the results in the appropriate [city]/popdens directory.

Usage

crop_global_tif(city = "bristol", expand = 0.1)

Arguments

city	Name of city (one of "accra", "kathmandu", or "bristol")
expand	Relative factor by which to expand cropping limits beyond rectangular bounding box of city

Details

The main JRCDC page is http://data.jrc.ec.europa.eu/dataset/jrc-ghsl-ghs_pop_gpw4_globe_r2015a, leading to the download of GHS_POP_GPW42015_GLOBE_R2015A_54009_250_v1_0.zip, which is 1GB, and is not archived in this repo.

Value

Nothing Files are written to the corresponding directories

Note

This should be run from somewhere within the whodata repository structure; anywhere else will likely fail. It also takes a r-e-a-l-l-y long time because of the raster re-projection.

ATFutures/who-data documentation built on Dec. 24, 2019, 9:30 p.m.