File:End of Winter- How 2012 Snow Stacks Up (6841323036).jpg
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[edit]DescriptionEnd of Winter- How 2012 Snow Stacks Up (6841323036).jpg |
The mild winter of 2012 has many people asking, "Where's the snow?" These two snow cover maps show the difference between snow extent on March 3, 2011 (top), and March 5, 2012 (bottom). The maps were compiled from data collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA's Terra satellite. In 2012, the snow cover is very spotty compared to 2011. In 2011, the Great Lakes were clearly defined by surrounding snow, and snow blanketed the Rocky Mountains, Nevada's Basin and Range, and the Sierra Nevada all the way into southern California. In 2012, areas that are usually snow covered are bare, including parts of Montana, Wyoming and South Dakota. The Snake River Plain in southern Idaho is clearly visible. This low-lying valley is the track of the hotspot that is now under Yellowstone National Park. In the east, the Great Lakes area, southern Ontario and the East Coast of the United States have much less snow cover than they did at this time last year. 2012's relatively light snowfall is the result of two atmospheric processes, according to climatologist Bill Patzert of NASA's Jet Propulsion Laboratory, Pasadena, Calif. One is the La Niña conditions in the Pacific, which result in less moist air crossing the continental United States. The other is a strong Arctic Oscillation that keeps cold arctic air around the North Pole and away from more southern latitudes. For a more in-depth explanation, visit: science.nasa.gov/science-news/science-at-nasa/2012/17jan_... Ellen Gray NASA's Goddard Space Flight Center, Greenbelt, Md. Credit: NASA/MODIS NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram |
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Source | End of Winter: How 2012 Snow Stacks Up |
Author | NASA Goddard Space Flight Center from Greenbelt, MD, USA |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/6841323036. It was reviewed on 17 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 September 2016
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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.) | ![]() |
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current | 21:48, 17 September 2016 | ![]() | 1,280 × 1,445 (1.54 MB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Width | 1,280 px |
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Height | 720 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS5 Macintosh |
File change date and time | 11:39, 16 March 2012 |
Exif version | 2.21 |
Color space | Uncalibrated |
Date and time of digitizing | 07:43, 14 March 2012 |
Date metadata was last modified | 07:39, 16 March 2012 |
Unique ID of original document | uuid:35FE10AEFA67E111A116D020163F02E7 |
Copyright status | Copyright status not set |