2012 NGWA Ground Water Summit: Innovate and Integrate

Stream-Aquifer Interactions

Wednesday, May 9, 2012: 1:30 p.m.-3:30 p.m.
Royal Ballroom C (Hyatt Regency Orange County)
Recognizing and understanding stream-aquifer interactions requires knowledge of groundwater flow paths and their linkages to streams, rates of exchange between stream and groundwater systems, and the mechanisms that generate spatial and temporal variations during these processes. This session focuses on but is not limited to interpretive studies that further the understanding of physical and chemical techniques for identifying and quantifying groundwater flux to and from streams, use of groundwater models to better understand the effects of reduced stream flow as a result of groundwater pumping near streams, and understanding stream-aquifer interactions surrounding agricultural land use and its associated effects on stream water quality.
Moderator:
Celia Zamora
1:30 p.m.
Transient Storage Models Underestimate the Depth of the Hyporheic Zone
Sarah A. Bourke, Flinders University;
Peter G. Cook, Ph.D., CSIRO;
Margaret Shanafield, Ph.D., National Centre for Groundwater Research and Training;
Shawan Dogramaci, Ph.D., Rio Tinto Iron Ore

1:50 p.m.
Estimating Aquifer Parameters from Time Series EC and Pressure Data Collected During River Flow Events
Chani Welch, School of the Environment, Flinders University;
Peter G. Cook, Dr., Flinders University, CSIRO Land and Water;
Glenn A. Harrington, Ph.D., CSIRO Land and Water;
N.I. Robinson, Ph.D., School of the Environment, Flinders University

2:10 p.m.
Spatially Periodic Boundaries in Hyporheic Zone Numerical Models
Tariq Laattoe, Flinders University;
Vincent Post, Ph.D., NCGRT; Flinders University;
Adrian D. Werner, National Centre for Groundwater Research and Training, Flinders University;
Craig T. Simmons, Flinders University, National Centre for Groundwater Research Training

2:30 p.m.
Recharge Assessment of the Lower Tuscan Formation Butte and Tehama Counties, California
Tim N. Godwin, PG, CHG, Brown and Caldwell;
Joseph B. Turner, PG, CHG, Brown and Caldwell;
Paul Gosselin, Director, Butte County Water and Resources Conservation

2:50 p.m.
An Experimental Study of Infiltration Processes and Groundwater Recharge in Ephemeral Losing Streams
Peter G. Cook, Ph.D., CSIRO;
Jordi Batlle-Aguilar, Ph.D., National Centre for Groundwater Research and Training (NCGRT)