DC Webcam Time Lapse

One of my favorite public Washington webcams is the NPS DC Air Quality Webcam installed in the Netherlands Carillon, facing towards the National Mall. It’s on a 15 minute refresh schedule, which gives you ninety-six unique images for every 24 hour period, so I wrote up a little script to fetch the webcam image every fifteen minutes from Monday to Friday, then combined the fetched images at the end of the week to make this little time lapse:

Turned out okay, though the final FLV from Google Video took a fairly large bit rate hit — I didn’t have jaggies like that in the original MP4 export. I’m looking forward to do more time lapses as the seasons change; anyone have suggestions for other such DC webcams I can fetch image sequences from on an automated schedule?

5 Comments so far

  1. tom (unregistered) on September 24th, 2007 @ 11:35 pm

    fetch one image a day for a year.


  2. RumorsDaily (unregistered) on September 25th, 2007 @ 12:26 am

    Excellent!


  3. Chris L (unregistered) on September 25th, 2007 @ 9:04 am

    Great work! What language did you write your script in? Any way I could have a peek? I’ve always wondered how to do this.


  4. GhostBear (unregistered) on September 25th, 2007 @ 9:33 am

    Awesome. Mind if I either link back to this or post on my own blog (with proper credit, of course)?


  5. brownpau (unregistered) on September 25th, 2007 @ 10:01 am

    Please, feel free. It’s assembled from a public domain resource, and the video is to be treated as such too.



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