File:Blue_Marble_2002.png
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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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來源 | 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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Public domainPublic domainfalsefalse |
本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ||
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描繪內容
11 2 2002
七月 西元3年格里曆
多媒體型式 繁體中文 (已轉換拼寫)
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資料大小 Chinese (Hong Kong) (已轉換拼寫)
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日期/時間 | 縮圖 | 尺寸 | 用戶 | 備註 | |
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目前 | 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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