原始檔案 (1,160 × 960 像素,檔案大小:356 KB,MIME 類型:image/jpeg


摘要

描述
English: NASA satellite image of the Nile, Aswan High Dam, and Lake Nasser - southern Egypt.
  • The Aswan High Dam was completed in 1970 and is one of the largest earthen embankment dams in the world. It is 364 feet (111 m) tall, 12 565 feet (3830 m) long and nearly 3281 feet (1000 m) wide. When it was built the new reservoir required relocation of nearly 100 000 residents and some archaeological sites. Although the reservoir has benefited Egypt by providing power and controlling floods, it has also had detrimental effects on the Nile system. Before the dam, an estimated 110 million tons of silt was deposited by the annual flood of the Nile, enriching agricultural lands and maintaining the land of the Nile delta. Now this sediment is trapped behind the dam, requiring artificial fertilization of agricultural lands and leading to erosion and saltwater intrusion where the Nile river meets the Mediterranean Sea.
Português: NASA imagem de satélite da Nile, y Barragem de Assuão.
日期
來源 http://earth.jsc.nasa.gov/sseop/EFS/lores.pl?PHOTO=STS102-303-17
作者 NASA
本圖像或影音收錄於美國國家航空暨太空總署 (NASA)某部門,其照片編號為: STS102-303-17

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This file is in the public domain in the United States because it was created by the Image Science & Analysis Laboratory, of the NASA Johnson Space Center. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA media use guidelines or Conditions of Use of Astronaut Photographs). Photo source: STS102-303-17.

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NASA satellite image of the Nile

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image/jpeg

093882e0f731952baec9a787a872a2860738e923

斷定方法:​SHA-1 中文 (已轉換拼寫)

365,055 位元組

960 像素

1,160 像素

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日期/時間縮⁠圖尺寸使用者備⁠註
目前2010年4月25日 (日) 10:29於 2010年4月25日 (日) 10:29 版本的縮圖1,160 × 960(356 KB)RehmanHigher resolution Category:Aswan High Dam
2005年3月28日 (一) 23:13於 2005年3月28日 (一) 23:13 版本的縮圖540 × 420(68 KB)Saninha

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