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Day: January 17, 2014

News Archive

New Ground Control Points for Select Landsat 8 Scenes

New Ground Control Points (GCPs) will become available for three WRS-2 path/rows and GCPs contained within large water bodies will be removed on February 3, 2014 to coincide with the Landsat 8 archive reprocessing. As a consequence of the improved GCPs, scenes once created as a systematic Level 1GT (L1GT) product may now process to a precision Level 1T (L1T) product.

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Fra Mauro Mappamundi (c. 1450) and the Blue Marble

Fra Mauro’s Mappamundi

Long before the famous Earthrise photo taken by Apollo astronauts, creating an image or map of the entire known world was a singular human endeavor. Imagine a half a millennium earlier when only those who had traveled could describe distant lands. Imagine watching the hustle and bustle of merchants and sailors returning to the port of Venice. What stories could they tell to paint a portrait of our planet?

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