Soubor:Crater Highlands, Tanzania.jpg
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Popis
PopisCrater Highlands, Tanzania.jpg |
English: The Shuttle Radar Topography Mission (SRTM), flown aboard Space Shuttle Endeavour in February 2000, acquired elevation measurements for nearly all of Earth's landmass between 60°N and 56°S latitudes. For many areas of the world SRTM data provide the first detailed three-dimensional observation of landforms at regional scales. SRTM data were used to generate this view of the Crater Highlands along the East African Rift in Tanzania. Landforms are depicted with colored height and shaded relief, using a vertical exaggeration of 2X and a southwestwardly look direction.
Lake Eyasi is depicted in blue at the top of the image, and a smaller lake occurs in Ngorongoro Crater. Near the image center, elevations peak at 3648 meters (11,968 feet) at Mount Loolmalasin, which is south of Ela Naibori Crater. Kitumbeine (left) and Gelai (right) are the two broad mountains rising from the rift lowlands. Mount Longido is seen in the lower left, and the Meto Hills are in the right foreground. Tectonics, volcanism, landslides, erosion and deposition -- and their interactions -- are all very evident in this view. The East African Rift is a zone of spreading between the African (on the west) and Somali (on the east) crustal plates. Two branches of the rift intersect here in Tanzania, resulting in distinctive and prominent landforms. One branch trends nearly parallel the view and includes Lake Eyasi and the very wide Ngorongoro Crater. The other branch is well defined by the lowlands that trend left-right across the image (below center, in green). Volcanoes are often associated with spreading zones where magma, rising to fill the gaps, reaches the surface and builds cones. Craters form if a volcano explodes or collapses. Later spreading can fracture the volcanoes, which is especially evident on Kitumbeine and Gelai Mountains (left and right, respectively, lower center). The Crater Highlands rise far above the adjacent savannas, capture moisture from passing air masses, and host rain forests. Over time, streams erode downward toward the level of the adjacent rift, deeply dissecting the volcanic slopes. This is especially evident on the eastern flanks of Mount Loolmalasin (left of center). Landsliding also occurs here. In particular, the small but steep volcanic cone nearest the image center has a landslide scar on its eastern (left) flank, and topographic evidence shows that the associated landslide deposits extend eastward 10 kilometers (6 miles) across the floor of the rift. Such a long run of landslide debris is unusual but is not unique on Earth. |
Datum | |
Zdroj | http://www.nasa.gov/topics/earth/earthmonth/earthmonth_2013_02.html |
Autor | NASA/JPL/NGA |
Další verze |
Licence
Public domainPublic domainfalsefalse |
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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zobrazuje
28. 3. 2013
image/jpeg
e3722f584538fbf907b7e0335e9860272a7fc40a
2 720 484 bajt
1 965 pixel
1 586 pixel
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Datum a čas | Náhled | Rozměry | Uživatel | Komentář | |
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současná | 1. 4. 2013, 21:40 | 1 586 × 1 965 (2,59 MB) | Stas1995 | User created page with UploadWizard |
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Tento soubor obsahuje dodatečné informace, poskytnuté zřejmě digitálním fotoaparátem nebo scannerem, kterým byl pořízen. Pokud byl soubor od té doby změněn, některé údaje mohou být neplatné.
Název obrázku |
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Orientace | Normální |
Rozlišení obrázku na šířku | 240 dpi |
Rozlišení obrázku na výšku | 240 dpi |
Použitý software | Adobe Photoshop CS6 (Windows) |
Datum a čas vytvoření obrázku | 28. 3. 2013, 11:56 |
Verze Exif | 2.21 |
Barevný prostor | Nekalibrováno |
Unikátní ID původního dokumentu | 71BC7F688543032346A256EA2A0DC76D |
Hodnocení (1–5) | 0 |
Datum poslední úpravy metadat | 28. 3. 2013, 07:56 |
Datum a čas digitalizace | 28. 3. 2013, 07:27 |
Verze IIM | 28 371 |