More and more geospatial data is migrating to the cloud, and it most often is stored on cloud-based object storage like S3 or Google Cloud Storage. Traditional GIS file formats can easily sit on the cloud, but serving up web map tiles or doing on the fly processing of the data are difficult to do efficiently with those formats. They often have to be fully downloaded to another location and then translated to an optimized format or stored in memory.

Cloud Optimized GeoTIFF’s enable efficient streaming of data, with some smart technology, to enable fully cloud-based geospatial workflows. Online imagery platforms like the Planet Platform and GBDX use them to provide imagery that gets processed on the fly. COG-aware software can stream just the portions of data that it needs, improving access times.

Newer scale out geospatial software like GeoTrellis, Google Earth Engine and

Pull Requests Accepted

The Cloud Optimized GeoTIFF project and website is fully community driven. If something is not right on the website, or if you want to contribute a tutorial, add your software to the implementation list or tell the world about the awesome data you are making available as COG's then please contribute on GitHub.