File:Africa satellite plane.jpg

預覽大細：570 × 600 像素。第啲解像度：228 × 240 像素｜456 × 480 像素｜730 × 768 像素｜973 × 1,024 像素｜1,947 × 2,048 像素｜8,460 × 8,900 像素。

原本檔案 ‎（8,460 × 8,900 像素，檔案大細：7.34 MB ，MIME類型：image/jpeg）

呢個檔案係出自維基同享。下面係佢喺嗰邊嘅描述。
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警告	原文件像素好高。開full size來睇個話，個文件未必正常load到，或者會令你個瀏覽器死機。想避免呢個問題，可以用ZoomViewer。

描述

English: A composed satellite photograph of Africa.

來源

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

作者

NASA

Other versions

This file has an extracted image: Africa satellite plane (cropped-egypt).jpg.

	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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[3] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [4] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [5] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

檔案歷史

撳個日期／時間去睇響嗰個時間出現過嘅檔案。

	日期／時間	縮圖	尺寸	用戶	註解
現時	2005年3月28號 (一) 00:46		8,460 × 8,900（7.34 MB）	Dbenbenn	original high-resolution version, cropped land_shallow_topo_west.tif at 8460x8900+19400+6200
	2004年11月13號 (六) 21:08		741 × 800（113 KB）	Bjarki S

檔案用途

無嘢連來呢份檔案。

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File:Africa satellite plane.jpg

Captions

Items portrayed in this file

圖中顯示嘅係

MIME 類型

image/jpeg

核對值

a504c5a90077b57cd1b32b811e91ebca117c6fbe

資料大細

7,700,724 字節

高度

8,900 像素

闊度

8,460 像素

檔案歷史

檔案用途

全域檔案使用情況