Restr:Africa satellite plane.jpg

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Restr orin ‎(8 460 × 8 900 piksel, ment ar restr : 7,34 Mio, seurt MIME : image/jpeg)

Restr Wikimedia Commons

Tennet eo ar restr-mañ eus Wikimedia Commons ha gallout a ra bezañ implijet evit raktresoù all. Diskouezet eo deskrivadur he fajenn zeskrivañ amañ dindan.
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English: A composed satellite photograph of Africa.
Mammenn

The image is from [1] ("Blue Marble: Land Surface, Shallow Water, and Shaded Topography ", 2002). I took the two 21600x21600 images, land_shallow_topo_west.tif and land_shallow_topo_east.tif, and composed them. I cropped the resulting image at 8460x8900+19400+6200.

Regarding the source data of the original, NASA-Blue Marble file, it is being explained [2] that it

  • used a set of satellite-based observations to yield an image with 1 km² (0.386 square mile) resolution
  • most information comes from NASA’s MODIS instrument (Moderate Resolution Imaging Spectroradiometer)
  • data were collected from June through September 2001
  • ocean data has two sources: (i) shallow water true color data, and (ii) global ocean color/chlorophyll data
  • elevation data stem from the GTOPO 30 dataset by the U.S. Geological Survey’s EROS Data Center
Aozer NASA
Stummoù all
Image extraction processThis file has an extracted image: Africa satellite plane (cropped-egypt).jpg.
lang=br
Cropped image: Sahara


Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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checksum saozneg

a504c5a90077b57cd1b32b811e91ebca117c6fbe

determination method saozneg: SHA-1 saozneg

ment ar roadennoù

7 700 724 byte

uhelded

8 900 pixel

led

8 460 pixel

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red28 Meu 2005 da 00:46Munud eus stumm an 28 Meu 2005 da 00:468 460 × 8 900 (7,34 Mio)Dbenbennoriginal high-resolution version, cropped land_shallow_topo_west.tif at 8460x8900+19400+6200
13 Du 2004 da 21:08Munud eus stumm an 13 Du 2004 da 21:08741 × 800 (113 Kio)Bjarki S

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