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Teamwork
A research worker transpose a sample to a rinse bucket at West Long Lake , Nebraska in the Valentine National Wildlife Refuge , in January 2008 . The sample was collected using a rod - climb Ekman dredge , for sampling benthal invertebrates .
Fractures in the ice
Ted Ozersky , an ecologist and prof at the University of Minnesota in Duluth , stands on the readable ice at Lake Baikal , Siberia .
Journey to the center
A group of researchers walk out to sample the deepest part of a prairie chuckhole shallow lake in west - fundamental Minnesota , in an arena known as the " Prairie Pothole neighborhood " of North America .
Data download
Photo of Leah Domine , a researcher at the University of St. Thomas in Minnesota , downloading data from a sonde — a tool containing measurement sensors — that was deploy under the ice in a prairie pothole shallow lake , in the so - call " Prairie Pothole region " of North America , in west - central Minnesota .
Reflections
This photo is a rumination of geologist George Swann , an associate prof in Palaeoclimatology at the University of Nottingham , sampling from a hole drilled through frozen Lake Baikal in Siberia .
Geometric ice
fall ice spring on Toolik Lake , Alaska , September 21 , 2013 .
Ridges and waves
Ice forming on Lake Ediza in Sierra Nevada , California , on July 8 , 2006 .
Sample taker
Jade Lawrence , a doctorial nominee in geology at Louisiana State University , drill holes in the crank in Lake E6 near Toolik Lake in Alaska , on May 11 , 2013 .
From A to B
Steve Sadro , an assistant prof of environmental skill at the University of California , Davis , deplume a sled across Lake Toolik , Alaska on May 28 , 2013 .
Learning the trade
Winter sample distribution by undergrad on Emerald Lake in Sierra Nevada , California , on March 28 , 2013 .
