File:Blue_Marble_2002.png
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摘要
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描述Blue Marble 2002.png |
العربية: صور ساتليَّة مُجمَّعة لتُظهر سطح الأرض كاملًا.
English: This spectacular “blue marble” image is the most detailed true-color image of the entire Earth to date. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (.386 square mile) of our planet. These images are freely available to educators, scientists, museums, and the public.
Much of the information contained in this image came from a single remote-sensing device-NASA’s Moderate Resolution Imaging Spectroradiometer, or MODIS. Flying over 700 km above the Earth onboard the Terra satellite, MODIS provides an integrated tool for observing a variety of terrestrial, oceanic, and atmospheric features of the Earth. The land and coastal ocean portions of these images are based on surface observations collected from June through September 2001 and combined, or composited, every eight days to compensate for clouds that might block the sensor’s view of the surface on any single day. Two different types of ocean data were used in these images: shallow water true color data, and global ocean color (or chlorophyll) data. Topographic shading is based on the GTOPO 30 elevation dataset compiled by the U.S. Geological Survey’s EROS Data Center. MODIS observations of polar sea ice were combined with observations of Antarctica made by the National Oceanic and Atmospheric Administration’s AVHRR sensor—the Advanced Very High Resolution Radiometer. The cloud image is a composite of two days of imagery collected in visible light wavelengths and a third day of thermal infra-red imagery over the poles. Global city lights, derived from 9 months of observations from the Defense Meteorological Satellite Program, are superimposed on a darkened land surface map. |
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来源 | NASA Visible Earth: Blue Marble: Land Surface, Shallow Water, and Shaded Topography |
作者 | NASA’s Terra satellite for the MODIS imageries, combined by Meow. Credit: NASA Goddard Space Flight Center Image by Reto Stöckli (land surface, shallow water, clouds). Enhancements by Robert Simmon (ocean color, compositing, 3D globes, animation). Data and technical support: MODIS Land Group; MODIS Science Data Support Team; MODIS Atmosphere Group; MODIS Ocean Group Additional data: USGS EROS Data Center (topography); USGS Terrestrial Remote Sensing Flagstaff Field Center (Antarctica); Defense Meteorological Satellite Program (city lights). |
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本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ||
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描绘内容
11 2 2002
7月 公元3年格里历
image/png
数据大小 简体中文(已转写)
555,309,882 字节
21,600 像素
43,200 像素
共享资源质量评价 简体中文(已转写)
维基共享资源特色图片 简体中文(已转写)
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日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
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当前 | 2023年7月23日 (日) 10:34 | 43,200 × 21,600(529.58 MB) | Gioppolognomo | Reverted to version as of 11:53, 5 August 2016 (UTC) | |
2023年7月23日 (日) 10:28 | 5,400 × 2,700(41.8 MB) | Gioppolognomo | |||
2016年8月5日 (五) 11:53 | 43,200 × 21,600(529.58 MB) | Meow | c:User:Rillke/bigChunkedUpload.js: |
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