[Ráfaga] Nº177: size, ski, ark, terrace, gdal

[Jorge Sanz]

* Interactive map to compare correctly the real size of different land masses
  http://thetruesize.com/

* Interactive map of ski trails made with TileMill and Leaflet
  http://squawalpine.com/skiing-riding/mountains/trail-maps

* Collecting and store for the future 3D models of unique heritage places
  http://www.cyark.org/

* Map of unenclosed cafés in NYC
  https://www1.nyc.gov/assets/dca/SidewalkCafeMap/index.html

* Short tutorial on how to use GDAL command line tools to perform
geospatial operations
  https://developmentseed.org/blog/2015/08/27/geo-command-line-introduction/

Raf