A heatmap as calendar
Recently I was looking for a visual representation to show the daily changes of temperature, precipitation and wind in an application (in Spanish), which led me to use a heatmap in the form of a calendar. The shiny application is updated every four hours with new data showing calendars for each weather station.
Visualize urban growth
The General Directorate for the Cadastre of Spain has spatial information of the all buildings except for the Basque Country and Navarra. This data set is part of the implementation of INSPIRE, the Space Information Infrastructure in Europe. More information can be found here. We will use the links (urls) in ATOM format, which is an RSS type for web feeds, allowing us to obtain the download links for each municipality.