McMurdo Dry Valleys MO: Experimental Approach
Principal Investigators...click here for more information
Sample Collection and Site Characterization
Because these lakes are permanently ice-covered, researchers need to drill through 4-6m of ice to reach the liquid water below. A profile of water samples is collected by lowering a niskin bottle down through the hole in the ice.
Sometimes the drill bits get frozen into the ice, making the process quite challenging. The photo below left shows the crew trying to free the stuck bit. On the right, an ice-coring bit is shown alongside exposed gas bubbels and sediment trapped in the ice.
Continue to Water Sample Analysis... WSA
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