File:2018 High-flow Release - Glen Canyon Dam - 47396916152.jpg
![File:2018 High-flow Release - Glen Canyon Dam - 47396916152.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ed/2018_High-flow_Release_-_Glen_Canyon_Dam_-_47396916152.jpg/800px-2018_High-flow_Release_-_Glen_Canyon_Dam_-_47396916152.jpg?20200406031855)
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Summary
[edit]Description2018 High-flow Release - Glen Canyon Dam - 47396916152.jpg |
English: In the foreground, jets of water being released from the base of Glen Canyon Dam. The dam and sandstone canyon walls are visible in the background. NPS/M.Quinn
Between November 5-10, 2018, the U.S. Department of Interior increased the release from Glen Canyon Dam for a high-flow experimental release (HFE) of approximately 38,100 cubic feet per second (cfs) for 3 days. (60 hours) The goal of the high-flow experiment was to move sand stored in the river channel and redeposit it to rebuild eroded sandbars and beaches downstream of the Paria River in Grand Canyon National Park. This release followed the science-based Protocol for High-Flow Experimental Releases from Glen Canyon Dam approved in the 2016 Long-Term Experimental and Management Plan Record of Decision for Glen Canyon Dam operations and is a component of the Department’s compliance with the Grand Canyon Protection Act of 1992. The Grand Canyon Protection Act mandates that Glen Canyon Dam be operated in a manner that protects, mitigates adverse impacts to, and improves the values for which Grand Canyon National Park and Glen Canyon National Recreation Area were established. Previous experimental releases from Glen Canyon Dam have demonstrated that it is possible to rebuild beaches and sandbars in Grand Canyon via high flows. More information: www.nps.gov/grca/learn/nature/hfe.htm |
Date | |
Source | https://www.flickr.com/photos/50693818@N08/47396916152/ |
Author | Grand Canyon NPS |
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This image was originally posted to Flickr by Grand Canyon NPS at https://flickr.com/photos/50693818@N08/47396916152. It was reviewed on 6 April 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
6 April 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:18, 6 April 2020 | ![]() | 5,000 × 2,691 (10.08 MB) | Killarnee (talk | contribs) | Uploaded a work by Grand Canyon NPS from https://www.flickr.com/photos/50693818@N08/47396916152/ 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 D7000 |
Exposure time | 1/800 sec (0.00125) |
F-number | f/14 |
ISO speed rating | 500 |
Date and time of data generation | 11:21, 5 November 2018 |
Lens focal length | 18 mm |
Credit/Provider | NPS/M.Quinn |
Image title |
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Short title |
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Width | 9,464 px |
Height | 5,094 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CC (Windows) |
File change date and time | 10:15, 23 March 2019 |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:21, 5 November 2018 |
APEX shutter speed | 9.643856 |
APEX aperture | 7.61471 |
APEX exposure bias | 0 |
Maximum land aperture | 3.6 APEX (f/3.48) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 8 |
Color space | Uncalibrated |
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 | 27 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 3052643 |
Lens used | 18.0-105.0 mm f/3.5-5.6 |
Rating (out of 5) | 0 |
Date metadata was last modified | 03:15, 23 March 2019 |
Unique ID of original document | F1E290608686962A8AD02327110C2DD8 |
Copyright status | Copyright status not set |
Keywords |
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IIM version | 4 |