File:Namib Desert (Satellite picture).jpg
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DescriptionNamib Desert (Satellite picture).jpg |
English: The Copernicus Sentinel-2 mission takes us over part of the Namib Desert in western Namibia. At 55 million years old, Namib is considered the oldest desert on Earth.
In this image, captured on 27 October 2019, a large portion of the Namib-Naukluft National Park is visible. The park covers an area of almost 50 000 sq km and encompasses part of the Namib Desert and the Naukluft Mountains to the east. Straight, white lines visible in the right of the image are roads that connect the Namib-Naukluft National Park with other parts of Namibia. The park’s main attraction is Sossusvlei – a large salt and clay pan visible in the centre of the image. The bright white floors of the pan contrasts with the rust-red dunes that surround it. Sossusvlei acts as an endorheic basin for the Tsauchab River – an ephemeral river flowing from the east. Owing to the dry conditions in the Namib Desert, the river rarely flows this far and the pan usually remains dry most years. In the past, water from the Tsauchab has reached the Atlantic coast a further 60 km away. The dunes in this area are some of the highest in the world. The tallest, nicknamed ‘big daddy,’ stands at around 325 m. The dunes facing the river valley are called star dunes and are formed from winds blowing in multiple directions, creating long ‘arms’ that point into the valley from both sides. These dunes contrast with the saffron-coloured dunes visible in the Namib Sand Sea, just south of Soussusvlei. The sand sea consists of two dune seas, one on top of another. The foundation of the ancient sand sea has existed for at least 21 million years, while the younger sand on top has existed for around 5 million years. The dunes here are formed by the transportation of materials from thousands of kilometres away, carried by river, ocean current and wind. The Namib Sand Sea is the only coastal desert in the world to contain large dune fields influenced by fog – the primary source of water for the Namib Sand Sea. Haze is visible in the bottom left of the image, the last leftovers of fog coming from the Atlantic Ocean. Copernicus Sentinel-2 is a two-satellite mission to supply the coverage and data delivery needed for Europe’s Copernicus programme. This image is featured on the Earth from Space video programme. |
Date | |
Source | http://www.esa.int/ESA_Multimedia/Images/2020/04/Namib_Desert#.XqYJz3bHVVQ.link |
Author | ESA |
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This image contains data from a satellite in the Copernicus Programme, such as Sentinel-1, Sentinel-2 or Sentinel-3. Attribution is required when using this image.
Attribution: Contains modified Copernicus Sentinel data 2019
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The use of Copernicus Sentinel Data is regulated under EU law (Commission Delegated Regulation (EU) No 1159/2013 and Regulation (EU) No 377/2014). Relevant excerpts:
Free access shall be given to GMES dedicated data [...] made available through GMES dissemination platforms [...].
Access to GMES dedicated data [...] shall be given for the purpose of the following use in so far as it is lawful:
GMES dedicated data [...] may be used worldwide without limitations in time.
GMES dedicated data and GMES service information are provided to users without any express or implied warranty, including as regards quality and suitability for any purpose. |
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current | 22:27, 26 April 2020 | ![]() | 10,236 × 8,337 (8.3 MB) | Killarnee (talk | contribs) | {{Information |description ={{en|1=3}} |date = |source =1 |author =2 }} |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS5.1 Windows |
File change date and time | 11:53, 20 April 2020 |
Color space | Uncalibrated |
Date and time of digitizing | 15:45, 9 January 2020 |
Date metadata was last modified | 13:53, 20 April 2020 |
Unique ID of original document | xmp.did:A9942E40BD32EA11AEE6ED3161E7E559 |
IIM version | 59,277 |