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File:PIA22737-Mars-2018DustStorm-MCS-MRO-Animation-20181030.webm

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原始檔案 (WebM音訊/視訊檔,VP8/Vorbis,長度1分38秒,1,920 × 1,126像素,共3.03 Mbps,檔案大小:35.56 MB)


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English: PIA22737: Mars Climate Sounder Studies 2018 Dust Storm - WEBM File Animation


[NOTE: Converted original MP4 Video to WEBM Video via Online Converter at => https://www.media.io/convert/mp4-to-webm.html ]
- Drbogdan (留言) 14:28, 1 November 2018 (UTC)


FILE DESCRIPTION:

https://photojournal.jpl.nasa.gov/catalog/PIA22737

This animation shows the evolution of the 2018 Mars global dust storm from late May to September. The animation shows the optical depth tau -- a measure of how much light is being blocked by atmospheric dust as measured by the Mars Climate Sounder instrument onboard NASA's Mars Reconnaissance Orbiter.

NASA's Opportunity rover is marked with a RED DOT. The dust is mapped to two opposite hemispheres of Mars, giving a view of the full globe. Certain features of the Martian terrain, including Olympus Mons, the three volcanoes (Tharsis Montes} in the equatorial region, and Valles Marineris, are also visible.

The data shows the daily global column of dust, illustrating how the dust behaves over the course of the storm. The storm has a complex growth affecting most of Mars over the first month. It then remains near the peak for three weeks. Finally, the storm starts a multi-month decay back to regular weather.

A color scale in the lower right-hand corner of the animation explains the colors in relation to approximate tau values. A tau of three indicates that only about 5 percent of the sunlight entering the atmosphere directly reaches the surface.

NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington, and leads the Mars Climate Sounder investigation.
日期
來源 https://photojournal.jpl.nasa.gov/archive/PIA22737.mp4
作者 NASA/JPL-Caltech

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Public domain 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/zhNASA版權政策JPL圖像使用政策
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