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Changing Seasonality and Arctic Stream NetworksToolik River Thermokarst 2003

Collaborating PIs:

  • William Bowden, (NSF Award # 0902106)
  • Michael Gooseff, (NSF Award # 0902029)
  • Wilfred Wollheim, (NSF Award # 0902113)

Description: Stream networks are intimately connected to the landscapes through which they flow and significantly transform nutrients and organic matter that are in transport from landscapes to oceans. This work will quantify the relative influences of throughflow, lateral inputs, and hyporheic (a layer of surface sediments that contains water which exchanges continuously with water in the open channel) regeneration on the seasonal fluxes of C, N, and P in an arctic river network, and determine how these influences will shift under seasonal conditions that are likely to be substantially different in the future. This objective is a logical extension of earlier. This work will focus on seasonal dynamics at different river reach scales (1st to 4th order streams) and will lay the groundwork for a whole river network model to integrate the influences of throughflow, lateral inputs, hyporheic regeneration, and in-stream metabolism on C, N, and P fluxes through an entire river network.

For more information see project's web site:

Changing Seasonality and Arctic Stream Networks

Access to data collected as part of this project.



This project is funded through the National Science Foundation's Office of Polar Programs. This material is based upon work supported by the National Science Foundation under collaborative grant nos. 0902029, 0902113, and 0902106. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.


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