Arctic Hyporheic Zone Project
June 2005 Field Campaign
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In June2005, we (B. Bowden, M. Gooseff, T. Brosten, J. Zarnetske, M. Johnston, J. Larouche, and Ken Turner) travelled to Toolik Lake to execute several field experiments, acquire 3-D ground-penetrating radar (GPR) data and sample hyporheic zone locations for biogeochemsitry. The overall goals were to determine the depth of the hyporheic zone within the thaw bulbs that develop underneath our experimental reaches. Our 2004 GPR and streambed temperature data indicated that the thaw bulbs under these streams extended several meters in depth. Below is a pictoral report of our activities in June. A full trip report can be found on our Reports page.
Breck snow mobiling to inlet series
Our drive from Fairbanks to Toolik was exciting with a number of wildfires near the road.
GPR set up for data acquisition over snow
GPR set up for data acquisition over snow
Our field work requires a lot of equipment. As we get ready to leave camp, we probably each have 70+ lbs on our backs!
Breck snow mobiling to inlet series
...and more gear - Morgan hauling piezometer tubing to the PI field site.
Breck snow mobiling to inlet series
...and even more gear - Ken hauls out the Little Giant Ladder System to the field.

Quick Time video, double click to run video
Morgan and Julia sink piezometer installation tool in 8I alluvial reach.

Quick Time video, double click to run video
When the proper depth has been attained, the drive rod is removed from the insertion sleve.
Kuparuk headwaters stream, East
Ken and Troy perform GPR surveys on 8I alluvial reach.
Toolik Lake outlet
Among other uses, the ladder was used in the PI reach to bridge the channel so that we did not disturb the organic bed material. Jay measures stream discharge from the ladder.

QT video, double click to run video
Morgan samples one of the piezometers in the PI peat reach.
Team GPR
Breck samples a piezometer during the 8I solute injection experiment on 18-Jul-2005. Piezometer water samples are analyzed for the tracer we put in the stream (the red dye) to determine when and how much stream water reaches that location at depth.
open water, S side of Brooks Range, April 2005
The AHP crew and 5 science journalists who were part-time team members. (Thanks, folks!)
Team GPR
Team photo taken at the Galbraith Lk. aufeis.
Brooks Range from the north in the winter
The gravel bar experimental site above Green Cabin Lake.
Brooks Range from the north in the winter

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This page was created 17-Aug-2005.
This page was last updated 05-Sept-2007.
Questions?  mgooseff@engr.psu.edu