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Lake Untersee, South Basin #1 by Dale Andersen

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Taken by
Dale Andersen Dale Andersen
Explore score
1
Size
2.34 Gigapixels
Views
1124
Date added
Feb 29, 2012
Date taken
Dec 01, 2011
Gear

GigaPan EPIC Pro

AF-S NIKKOR 70-200mm f/2.8G ED...

Nikon D3

Categories
environmental, landscape, nature, geology
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Description

Lake Untersee, Dec 1 2011.

Lake Untersee is one of the largest (11.4 km2) and deepest (>160 m) freshwater lakes in East Antarctica. Located at 71° S, the lake has a perennial ice cover that varies in thickness along the main axis of the lake from 2.2 to 3.9 m. With the exception of a small anoxic basin in the southwest of the lake, the water column is generally well mixed, is supersaturated with dissolved oxygen, has a pH of 10.4 and exceedingly high clarity (vertical attenuation coefficient for PAR of 0.033 m-1). While the water column supports little primary production, the floor of the lake has an extensive cover of photosynthetic microbial mat to depths of at least 100 m. For more information, see: Andersen DT, Sumner DY, Hawes I, Webster-Brown J, McKay CP (2011) Discovery of large conical stromatolites in Lake Untersee, Antarctica. Geobiology, 9, 280-293. onlinelibrary.wiley.com/doi/10.1111/j.1472-4669.2011.00279.x/full Will open in a new tab or window
We will be returning to Lake Untersee later this year (October 2013) to continue exploring the lake and surroundings. If you would like to see the Lake Untersee beneath the ice please visit my YouTube site at: www.youtube.com/watch?v=qs2hUZP-6Bo Will open in a new tab or window
Our logistics support is being handled by ALCI: www.antarctic-company.com/alci.htm Will open in a new tab or window
And we are working with the Arctic and Antarctic Research Institute in St. Petersburg, Russia: www.aari.aq/default_en.html Will open in a new tab or window
Major funding for this project has been provided by the Robert A. Pritzker Center for Meteoritics and Polar Studies and the Trottier Family Foundation.

Additional support has been provided by the Russian Arctic and Antarctic Research Institute, St.Petersburg, Russia, the Von Braun Center, Huntsville, AL; NASA, and the Carl Sagan Center for the Study of Life in the Universe, SETI Institute, Mt. View, CA.

PLEASE HELP SUPPORT THIS RESEARCH!
www.teamseti.org/supportdale Will open in a new tab or window
------------------------------
Dale T. Andersen, Ph.D.
Carl Sagan Center for the Study of Life in the Universe
189 Bernardo Ave., Suite 100
Mountain View, CA 94043

Web: daleandersen.seti.org Will open in a new tab or window
Twitter: twitter.com/daleandersen Will open in a new tab or window
Youtube: www.youtube.com/daletandersen Will open in a new tab or window
Dale T. Andersen, Copyright 2012, All Rights Reserved, Unauthorized Use is Prohibited


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