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The first "coarse maps of the solar radiation reflected by the Earth and the infrared radiation emitted by the Earth", from a mission launched on October 13, 1959. [21] 1960 TIROS-1: First television image of Earth from space and first weather satellite picture. [22] August 18, 1960 CORONA
The wavelengths are approximate; exact values depend on the particular instruments (e.g. characteristics of satellite's sensors for Earth observation, characteristics of illumination and sensors for document analysis): Blue, 450–515/520 nm, is used for atmosphere and deep water imaging, and can reach depths up to 150 feet (50 m) in clear water.
Google Map Maker was a map editing service launched by Google in June 2008. [2] ... This approach was not useful in areas with poor satellite imagery, and users ...
Picture of the Ararat anomaly taken by the U.S. Department of Defense in 1949 1973 Keyhole-9 image with Ararat anomaly circled in red. The Ararat anomaly is an alleged structure appearing on photographs of the snowfields near the summit of Mount Ararat, Turkey, and advanced by some Christian believers as the remains of Noah's Ark.
Google uses GCJ-02 data for the street map, but does not shift the satellite imagery layer, which continues to use WGS-84 coordinates, [45] with the benefit that WGS-84 positions can still be overlaid correctly on the satellite image (but not the street map). Google Earth also uses WGS-84 to display the satellite imagery. [46]
In March 2007, the lower-resolution satellite imagery on Google Maps showing post-Hurricane Katrina damage in Louisiana, US, was allegedly replaced with higher resolution images from before the storm. [6] Google's official blog post in April revealed that the imagery was still available in KML format on Google Earth or Google Maps. [7] [8] [9]
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