Geo Hash Experiment

This is an experiment to see if a predictable location tag based on latitude and longitude can also be useful. A geo hash is a progressively detailed division of the Earth's surface. The first letter is a fraction of latitude, and the second letter is a fraction of the longitude. Each subsequent letter pair is a fraction of that fraction, or a grid within a grid. To specify a larger, less specific area, use fewer letters in the hash. The red box indicates the area specified by the geo hash value.

There are three ways to use this demo:

• Type a latitude and longitude, and the hash and the map will update.
• Type a new hash value and the map will update.
• Click on the map and a new hash will be generated for the point you click.

For more information about this experiment, please read this blog post.

Barnabas Kendall