Comparison of stream reach scale transport of rhodamine WT and NaCl in coupled mountain stream-hyporheic system

A. Bouchier; M. N. Gooseff; B. McGlynn; R. A. Payn; M. A. Briggs

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Comparison of stream reach scale transport of rhodamine WT and NaCl in coupled mountain stream-hyporheic system

Informally Refereed

Authors:

A. Bouchier, M. N. Gooseff, B. McGlynn, R. A. Payn, M. A. Briggs

Year:

2006

Type:

Paper

Station:

Rocky Mountain Research Station

Source:

In: American Geophysical Union, Fall Meeting; 2006 December 11-15; San Francisco, CA. Washington, DC: Eos Transactions, American Geophysical Union: B23A-1055.

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Abstract

Rather than interpret the late-time behavior of rhodamine WT (RWT) breakthrough curves in stream tracer studies as indications of hyporheic exchanges we suggest that RWT is lost by sorption. We assessed the transport of RWT compared with NaCl during and after a 5 hour co-injection steady state drip experiment conducted in a headwater mountain stream. We hypothesize that RWT is not transported conservatively compared to the NaCl tracer. Furthermore, we hypothesize that this relationship between RWT and NaCl transport can be seen both along the stream reach scale and across the sediment water interface.

Keywords

stream transport, rhodamine WT, NaCl, mountain stream-hyporheic system

Citation

Bouchier, A.; Gooseff, M. N.; McGlynn, B.; Payn, R. A.; Briggs, M. A. 2006. Comparison of stream reach scale transport of rhodamine WT and NaCl in coupled mountain stream-hyporheic system. In: American Geophysical Union, Fall Meeting; 2006 December 11-15; San Francisco, CA. Washington, DC: Eos Transactions, American Geophysical Union: B23A-1055.