google maps, cities + time

the urban geographer

Google satellite imagery that covers the entire globe is a relatively recent technological innovation relative to the history of cartography. Yet, it has been around long enough that over the years, Google has updated the aerial imagery in many parts of the world many times.

This happens more often than you might expect. In fact, in very major cities like New York, Google offers almost monthly satellite imagery from 2004 on, and  even some images from as far back as 1978! (though the quality is understandably much poorer from earlier dates).

On Google Earth, one now has the ability to flip through the various editions of satellite images over the same geographic space, enabling the experience of a city in one of its most fundamental forms: as a constantly changing, dynamic entity, as opposed to the static image that online Google maps offer.

Check out this progression back in time…

View original post 434 more words

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