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A little birdy came in the window and told me that NY State office of Information and Technology Services has posted aerial photography taken in the spring of 2020 this morning to their website

A little birdy came in the window and told me that NY State office of Information and Technology Services has posted aerial photography taken in the spring of 2020 this morning to their website. It includes the dairy farm country of the very fertile Genesee Valley (MOO with the smell of silage and manure !!!), and most of Nassau and Suffolk County down on the Island, yes, the big one to the east of New York City where the Long Island Expressway runs and people adorn their cars with bumpster stickers that read, “Please Pray for Me, I Drive the Long Island Expressway,” America’s Largest Parking Lot.

How the History Aerial Photo Comparison is Put Together

How the History Aerial Photo Comparison is Put Together

  1. Download imagery from USGS Earth Explorer (Free account needed to download; most interesting is to Single Aerial Photos) and USGS Historical Topographic Maps
  2. Use the QGIS Georeferencer to add control points and re-project the map.
  3. Export two matching area/scale images from QGIS showing the before and after
  4. Use the jQuery TwentyTwenty Plugin to provide the slider for your browser