File:Frost polygons in ground (Gardner Lake trailhead, Beartooth Mountains, Wyoming, USA) 6.jpg
![File:Frost polygons in ground (Gardner Lake trailhead, Beartooth Mountains, Wyoming, USA) 6.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/Frost_polygons_in_ground_%28Gardner_Lake_trailhead%2C_Beartooth_Mountains%2C_Wyoming%2C_USA%29_6.jpg/800px-Frost_polygons_in_ground_%28Gardner_Lake_trailhead%2C_Beartooth_Mountains%2C_Wyoming%2C_USA%29_6.jpg?20221122134607)
Original file (3,008 × 2,000 pixels, file size: 5.72 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionFrost polygons in ground (Gardner Lake trailhead, Beartooth Mountains, Wyoming, USA) 6.jpg |
English: The ground seen here is in the Beartooth Mountains along the Montana-Wyoming border. The cracks formed as the soil experienced numerous freeze-thaw cycles in alpine to subalpine tundra conditions. The resulting crack-defined structures are called "frost polygons", which are one specific type of "patterned ground" formed by frost heaving.
Locality: ground near the Gardner Lake trailhead, southern side of Route 212 / Beartooth Highway, northwestern Wyoming, USA Info. at: en.wikipedia.org/wiki/Patterned_ground and en.wikipedia.org/wiki/Frost_heaving |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/52516074271/ |
Author | James St. John |
Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/52516074271. It was reviewed on 22 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
22 November 2022
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:46, 22 November 2022 | ![]() | 3,008 × 2,000 (5.72 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52516074271/ with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D70s |
Exposure time | 1/640 sec (0.0015625) |
F-number | f/13 |
ISO speed rating | 1,600 |
Date and time of data generation | 17:08, 30 August 2008 |
Lens focal length | 52 mm |
Width | 3,008 px |
Height | 2,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 18.0 (Macintosh) |
File change date and time | 01:15, 22 November 2022 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 17:08, 30 August 2008 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 9.321928 |
APEX aperture | 7.400879 |
APEX exposure bias | 0 |
Maximum land aperture | 4.5 APEX (f/4.76) |
Metering mode | Pattern |
Light source | Unknown |
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 |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 78 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 1004a0cc |
Lens used | 18.0-200.0 mm f/3.5-5.6 |
Date metadata was last modified | 20:15, 21 November 2022 |
Unique ID of original document | B474F327C6921AA760F38464BFEC889A |
IIM version | 32,688 |