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Download GeoTIFFs of SRTM data

The Shuttle Radar Togography Mission (SRTM) is the 'go-to' source for open data for elevation. If you want to make a map that shows hill countours or hill shading, this is a great global, free data set.

There are few ways to download it, but I recently discovered this site: CIGAR-CSI. It has a nice graphical front end where you can pick what 'cells' you want to download, and most importantly, it gives you GeoTIFF files.

GeoTIFF files have all the projection and co-ordinate stuff already inside the files, so you don't have to try to figure out what goes where. GeoTIFF files are much easier to work with than the raw .hgt files.

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CSV data dump of all the pubs in Dublin (from OpenStreetMap)

Thu 23 June 2011
In Open Data.

tags: data openstreetmap opendata

In order to calculate how to walk across Dublin without passing any pubs, I had to know where all the pubs in Dublin are. I used OpenStreetMap data for the locations of all the pubs.

After publishing that route, many people contacted me asking for the data of all the ...
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CSV location of all the cities in the world

Sun 29 May 2011
In Open Data.

tags: data openstreetmap opendata

Here's a CSV file of all the cities in the world from OpenStreetMap data. Download now. It's a list of all places that are tagged place=city.

First entry is the latitude, second is the longitude, third is the name of the city. Latitude is a number, positive ...
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