Summary/Goals: How do the coupled physical, chemical, biological, and geomorphic processes control the biogeochemical and hydrologic functions of riparian systems?
Activities and outcomes during past year:
This past year several key findings were made. First, Carlos Soto defended his MS thesis demonstrating the advantages and disadvantages of using temperature as a method for estimating streambed fluxes. Results show flaws in current analytical approach and identify the need for a new analytical solution. S. Treese defended her thesis, the paper has been submitted and accepted by JAWRA. Her results showed that clogging in streambeds is an important process in effluent dominated rivers. Simpson demonstrated that pre-dam waters
may be an important hydrologic resource on the Bill Williams River downstream of Planet Valley in Western Arizona. Hoori Ajami
Plans for the upcoming year:
1) Submit papers as outcomes of Soto and Simpson theses.
2) Complete synthesis paper on hydrology and biogeochemistry on the San Pedro.
3) Quanitification of evolution of streambed infiltration as a result of biological processes on upper Santa Cruz.
4) Continue to develop techniques to couple groundwater models to flood flows in the San Pedro river basin.
5) Quantify flood flow contributions to sustained baseflow in the Hassayampa and Bill Williams Rivers.
