File:Yakutat Icefield.jpg
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Summary
[edit]DescriptionYakutat Icefield.jpg |
English: Yakutat Icefield, an expanse of ice of about 310 square miles in southeast Alaska, is considered by glaciologists to be among the ‘walking dead’. The icefield no longer has an accumulation zone – the upper part of a glacier, where mass gains from snowfall exceed ice loss. A 2015 study predicted that the whole icefield would be gone by the end of the century, with just little pockets of ice left. Martin Truffer, a researcher with University of Alaska, Fairbanks, performed field work in Yakutat just a few summers ago. He was surprised to see during an IceBridge flight on August 19, 2018, that the section of the glacier that his field site had been sitting by had since melted away. "To see that several miles of glacier that you once walked on no longer exist – well, that’s impressive," Truffer said. [NASA/Maria-José Viñas] |
Date | |
Source | https://www.flickr.com/photos/nasa_ice/46706740694/ |
Author | NASA ICE |
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[edit]This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by NASA ICE at https://flickr.com/photos/59345957@N05/46706740694. It was reviewed on 13 September 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
13 September 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:38, 13 September 2020 | 4,032 × 3,024 (3.64 MB) | Prototyperspective (talk | contribs) | Uploaded a work by NASA ICE from https://www.flickr.com/photos/nasa_ice/46706740694/ with UploadWizard |
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Camera manufacturer | Apple |
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Camera model | iPhone 7 Plus |
Exposure time | 1/5,988 sec (0.00016700066800267) |
F-number | f/1.8 |
ISO speed rating | 25 |
Date and time of data generation | 12:48, 19 August 2018 |
Lens focal length | 3.99 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Photos 1.5 |
File change date and time | 12:48, 19 August 2018 |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 12:48, 19 August 2018 |
Meaning of each component |
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APEX shutter speed | 12.547864506627 |
APEX aperture | 1.6959937156324 |
APEX brightness | 12.019710906702 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 851 |
DateTimeDigitized subseconds | 851 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 28 mm |
Scene capture type | Standard |