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Friday, February 2, 2007: Yike's - the ice is threatening

Due to the increasing thickness of the ice in the streams and the potential for them to freeze to the bottom we have removed the sondes from all of the streams.

Duluth Temperature Graph

Last spring we had two instruments destroyed by spring runoff debris. The sondes will be returned to the streams when the threats have passed.

Here are a few pictures from Chester Creek on Friday:

Chester Creek Sonde Recovery - Feb2007
Chester Creek Sonde Recovery - Feb2007
Chester Creek Sonde Recovery - Feb2007
Chester Creek Sonde Recovery - Feb2007
Chester Creek Sonde Recovery - Feb2007