30-year Evolution Of Chatham From Space

By: Cape Cod Chronicle

Topics: Erosion , Beaches

Screenshot of Time/Google video showing Chatham's barrier beach evolution over three decades.

Time-lapse images taken over a 30-year period by Landsat satellites, compiled by Google and released by Time Magazine, include a 10-second glimpse of three decades of evolution of Chatham's barrier beaches.  Chatham is among dozens of locations across the globe highlighted in the video, which was initially put together by NASA and the U.S. Geological Survey and then cleaned up and assembled into one video montage by Google.

 

The Chatham footage begins at 1:07 and starts in 1984, before the 1987 break in North Beach across from the lighthouse.  In 10 seconds, the outer beach and Monomoy change dramatically, with North Beach lengthening until it merges with Monomoy and then breaches again opposite Monomoy in 2013.  The image only shows the southern side of Chatham beginning just north of the lighthouse, and doesn't include the 2007 break in North Beach opposite Minister's Point.