File:Grand Prismatic Spring (30 August 2011) 72 (14462748596).jpg
![File:Grand Prismatic Spring (30 August 2011) 72 (14462748596).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Grand_Prismatic_Spring_%2830_August_2011%29_72_%2814462748596%29.jpg/800px-Grand_Prismatic_Spring_%2830_August_2011%29_72_%2814462748596%29.jpg?20191014062936)
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Summary
editDescriptionGrand Prismatic Spring (30 August 2011) 72 (14462748596).jpg |
Grand Prismatic Spring, Excelsior Group, northern Midway Geyser Basin, Yellowstone Hotspot, northwestern Wyoming, USA in August 2011. Grand Prismatic Spring is, by far, the most beautiful thing I’ve ever seen. This rainbow-colored hot spring is best appreciated from the boardwalk along the northeastern edge of the pool and from atop Midway Bluff, a hill on the eastern side of the highway next to the Firehole River and from “7622 Hill” on the southeastern side of Fairy Falls Trail/Fountain Freight Road. [7622 Hill is now off limits due to the death of a Taiwanese tourist on the hillside in 2014; a boardwalk leading up to a viewing platform is supposedly being planned.] The deep blue color at the center of the pool is the result of very hot water having abundant, suspended, <0.5 micron-sized, colloidal silica particles. The yellow, orangish, reddish, and brownish areas are mats of extremophile bacteria (e.g., Phormidium, Synechococcus, Calothrix). The greenish areas are the effect of “blue water” mixing with the light reflecting from the yellowish bacterial mats. Grand Prismatic Spring is the largest hot spring in the world. It does not erupt as a geyser. |
Date | |
Source | Grand Prismatic Spring (30 August 2011) 72 |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/14462748596 (archive). It was reviewed on 14 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
14 October 2019
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current | 06:29, 14 October 2019 | ![]() | 3,008 × 2,000 (2.67 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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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 | 1/250 sec (0.004) |
F-number | f/8 |
Date and time of data generation | 12:24, 29 August 2011 |
Lens focal length | 34 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.00 |
File change date and time | 12:24, 29 August 2011 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 12:24, 29 August 2011 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4.1 APEX (f/4.14) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 80 |
DateTimeOriginal subseconds | 80 |
DateTimeDigitized subseconds | 80 |
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 | 51 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |