This video is a preliminary result of Ralph Straumann's contribution to the "Cartography & Narratives" workshop at the ETH Zurich (Switzerland) on June 28th, 2012. The workshop contribution is titled "Online Photo Repositories as Vehicles of Narratives: Stories about Zurich" and looks at georeferenced photographs in the Zurich area on Flickr. More than 80,000 images by over 4,000 contributors and their associated metadata (user, tags, etc.) have been downloaded as part of this study.
The video shows the occurrence of photographs and photographers throughout a day (conflated from the whole dataset). For more clarity, the photo locations have been binned spatially. Strong temporal and spatial differences and patterns emerge as you watch the day unfold: Party locations light up in the very early and very late hours. Noon and afternoon sees strong activity in the touristic downtown areas, the zoo's (located in the upper right quadrant) opening hours are discernible and transport hubs can also be identified as hubs of photo-taking activity.
Data-wrangling has been done mostly using Python and SQL, the animation has been created in Processing and exported as individual frames to be compiled into this video. This being a preliminary workshop result, quality is not ideal, sorry for that.