File:Lake Powell and The Rincon, Utah - NASA Earth Observatory.jpg
Original file (1,440 × 960 pixels, file size: 1.53 MB, MIME type: image/jpeg)
This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionLake Powell and The Rincon, Utah - NASA Earth Observatory.jpg |
This astronaut photograph highlights part of Lake Powell, which extends across southeastern Utah and northeastern Arizona. Lake Powell started filling in 1963 when the Glen Canyon Dam was completed along the Colorado River in Arizona, and the canyon was flooded. The serpentine surface of the reservoir—highlighted by gray regions of sunglint—follows the incised course of the canyon, which was cut downwards into the existing rock layers by the erosive power of the river. The two branches shown in the image are connected by a bend to the southwest (not shown). Lake Powell is part of the Glen Canyon National Recreation Area, which extends for more than 300 kilometers (186 miles) along the shoreline and side canyons. The primary intended use of Lake Powell’s water is support for agriculture, with a small portion allocated to urban use in Arizona, Nevada, and California. The reservoir did not reach its maximum capacity of 27 million acre-feet until 1980. More recently, extended drought conditions in the southwestern United States have resulted in a significant lowering of the lake water level and the emergence of formerly submerged parts of Glen Canyon. Should average precipitation in the Colorado River watershed decrease (as predicted by regional climate change models), that could result in further lowering of Lake Powell and changes to the water management plans. Fluctuations in water levels and changes in river courses are a common occurrence in the geologic record of rivers. Looking somewhat like a donut or automobile tire from the vantage point of the International Space Station, The Rincon (image center) is an entrenched and abandoned meander, or loop, of the Colorado River. Scientists believe it formed several thousand years ago when the river cut straight across the ends of the loop and shortened its course by six miles. The resulting canyon and 600 to 750 feet-high central mesa indicate where the river used to flow. The term “rincon” also is used by geomorphologists to describe similar ancient river features observed elsewhere. The Goosenecks of the San Juan River are an example of an active entrenched meander. Astronaut photograph ISS031-E-6398 was acquired on April 30, 2012, with a Nikon D2Xs digital camera using a 400 mm lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center. The image was taken by the Expedition 31 crew. It has been cropped and enhanced to improve contrast, and lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by William L. Stefanov, Jacobs/ESCG at NASA-JSC. The Earth Observatory's mission is to share with the public the images, stories, and discoveries about climate and the environment that emerge from NASA research, including its satellite missions, in-the-field research, and climate models. Like us on Facebook Follow us on Twitter Add us to your circles on Google+ |
Date | |
Source | Lake Powell and The Rincon, Utah |
Author | NASA's Earth Observatory |
Camera location | 37° 17′ 29.53″ N, 110° 47′ 37.27″ W | View this and other nearby images on: OpenStreetMap |
---|
Licensing
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by NASA Earth Observatory at https://www.flickr.com/photos/68824346@N02/7242439920. It was reviewed on 2 July 2012 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
2 July 2012
Captions
Items portrayed in this file
depicts
some value
30 April 2012
37°17'29.526"N, 110°47'37.266"W
0.0005 second
400 millimetre
400
image/jpeg
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 18:25, 11 March 2021 | 1,440 × 960 (1.53 MB) | Ulrichstill | full resolution and color slightly chanched | |
17:02, 2 July 2012 | 720 × 480 (179 KB) | Dzlinker | == {{int:filedesc}} == {{Information |Description=To download the full resolution and other files go to: [http://earthobservatory.nasa.gov/IOTD/view.php?id=77981&src=flickr earthobservatory.nasa.gov/IOTD/view.php?id=77981&src=...] This astronaut photo... |
File usage
Global file usage
The following other wikis use this file:
- Usage on it.wikipedia.org
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Image title |
|
---|---|
Camera manufacturer | NIKON CORPORATION |
Camera model | NIKON D2Xs |
Exposure time | 1/2,000 sec (0.0005) |
F-number | f/8 |
ISO speed rating | 400 |
Date and time of data generation | 19:26, 30 April 2012 |
Lens focal length | 400 mm |
User comments | NASA 1118 75.2F |
Online copyright statement | https://eoimages.gsfc.nasa.gov/images/imagerecords/77000/77981/ISS031-E-006398_lrg.jpg |
City shown | NASA 230221 |
Width | 1,440 px |
Height | 960 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop CS5 Windows |
File change date and time | 16:05, 23 February 2021 |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 19:26, 30 April 2012 |
Shutter speed | 10.965784 |
APEX aperture | 6 |
Exposure bias | −0.33333333333333 |
Maximum land aperture | 3 APEX (f/2.83) |
Subject distance | 4,294,967,295 meters |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 62 |
DateTimeOriginal subseconds | 62 |
DateTimeDigitized subseconds | 62 |
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 | 600 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Soft |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 6027244 |
Lens used | 400.0 mm f/2.8 |
Rating (out of 5) | 0 |
Date metadata was last modified | 17:05, 23 February 2021 |
Unique ID of original document | 7820C0BD62A01CD0A81392AF4E645A2A |
Copyright status | Copyright status not set |