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21 Aug, 2019
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File:1906AKH-2973-75-Pano2.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:27, 14 December 2021		1,000 × 566 (273 KB)	Photoseeker	Cross-wiki upload from en.wikipedia.org

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Kluane Lake

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Image title	Wind sweeps clouds of dust over Kluane Lake from the A'ay Chu (Slims River Valley), dried since 2016 glacial meltwater diversion, seen from Tachal Dahl (Sheep Mountain) Ridge, St. Elias Mountains, Yukon, Canada. Hike Sheep Creek trail (10-15 km with 500-1200 m gain or 1700-4000 ft) for spectacular views of the Slims River Valley and surrounding St. Elias Mountains, plus Kluane Lake seen from Soldier's Summit on Tachal Dahl (Sheep Mountain) Ridge. In a startling case of climate change, over 4 days in spring 2016, the Slims River suddenly disappeared, leaving windswept mud flats creating clouds of dust in the formerly clear air. With its main water supply diminished to a trickle, Kluane Lake may be isolated within a few years, shrinking below its outflow into the Kluane River (which flows into the Donjek River, White River, Yukon River, and eventually the Bering Sea). Kluane Lake chemistry and fish populations are rapidly changing. For the last 300 years, abundant meltwater from the Kaskawulsh Glacier has been channeled by ice dam to drain via the 150-meter wide Slims River, north into Kluane Lake. Between 1956 and 2007, the Kaskawulsh glacier retreated by 655m, which most scientists attribute to anthropogenic climate change. Meltwater flooding from accelerating retreat in 2016 carved a new channel through a large ice field, diverting most flows to the Kaskawulsh River, a tributary of the Alsek, which flows into the Gulf of Alaska. Read more at: https://projects.thestar.com/climate-change-canada/yukon/. This image was stitched from multiple overlapping photos captured in June 2019 by Tom Dempsey / PhotoSeek.com.
Camera manufacturer	SONY
Camera model	DSC-RX10M4
Exposure time	1/800 sec (0.00125)
F-number	f/4
ISO speed rating	100
Date and time of data generation	14:53, 15 June 2019
Lens focal length	8.8 mm
Source	© Tom Dempsey / PhotoSeek.com
Credit/Provider	© Tom Dempsey / PhotoSeek.com
Headline	Climate change: Kluane Lake's Slims River (A'ay Chu) inflow dried since retreating glacier's meltwater diverted in 2016. Yukon, Canada.
Online copyright statement	http://www.photoseek.com/
Author	photographer, © Tom Dempsey / PhotoSeek.com
Short title	Climate change: Kluane Lake's Slims River (A'ay Chu) inflow dried since retreating glacier's meltwater diverted in 2016. Yukon, Canada.
Copyright holder	© Tom Dempsey / PhotoSeek.com
Usage terms	© Tom Dempsey / PhotoSeek.com
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop Lightroom Classic 11.0.1 (Windows)
File change date and time	13:26, 14 December 2021
Exposure Program	Aperture priority
Exif version	2.31
Date and time of digitizing	14:53, 15 June 2019
Shutter speed	9.643856
APEX aperture	4
APEX brightness	9.34140625
Exposure bias	0
Maximum land aperture	2.5234375 APEX (f/2.4)
Metering mode	Center weighted average
Light source	Unknown
Flash	Flash did not fire, compulsory flash suppression
DateTimeOriginal subseconds	1
DateTimeDigitized subseconds	1
Color space	sRGB
Focal plane X resolution	4,145.4545593262
Focal plane Y resolution	4,145.4545593262
Focal plane resolution unit	3
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	24 mm
Scene capture type	Standard
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Lens used	24-600mm F2.4-4.0
Date metadata was last modified	05:26, 14 December 2021
Rating (out of 5)	3
Unique ID of original document	03DEB3147350F004CD511D94EC382041
Copyright status	Copyrighted
Keywords	Panorama lake river water
Contact information	tom@photoseek.com http://www.photoseek.com/ 354 NW 112th St Seattle, WA, 98177-4841 USA 206-372-7673
IIM version	4

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