File:Scientists using ablation sticks to measure the retreat of Sperry Glacier (4428356758).jpg
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Summary
[edit]DescriptionScientists using ablation sticks to measure the retreat of Sperry Glacier (4428356758).jpg |
Ablation stakes are used to determine how much of the previous winter's snow has melted off of a glacier. These scientists are working on Sperry Glacier in Glacier National Park. USGS Photo. |
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Source |
Scientists using ablation sticks to measure the retreat of Sperry Glacier
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Author | GlacierNPS |
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This image, originally posted to Flickr, was reviewed on 14 November 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
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This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. | ![]() |
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current | 07:38, 14 November 2013 | ![]() | 2,000 × 3,008 (1.63 MB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:AlbertHerring |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D70 |
Exposure time | 1/320 sec (0.003125) |
F-number | f/11 |
Date and time of data generation | 11:51, 8 August 2005 |
Lens focal length | 18 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 17:54, 29 March 2007 |
Y and C positioning | Centered |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 11:51, 8 August 2005 |
Meaning of each component |
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APEX exposure bias | 0.33333333333333 |
Maximum land aperture | 3.6 APEX (f/3.48) |
Metering mode | Pattern |
Light source | Fine weather |
Flash | Flash did not fire |
DateTime subseconds | 10 |
DateTimeOriginal subseconds | 10 |
DateTimeDigitized subseconds | 10 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Supported Flashpix version | 1 |
Image width | 2,000 px |
Image height | 3,008 px |
Date metadata was last modified | 11:54, 29 March 2007 |