The 2003 meeting of the Unsaturated Zone Interest Group
(UZIG) was held in
Methods of estimating/measuring flow and transport parameters
Methods and problems with upscaling parameters from lab to field scale
Field unsaturated zone monitoring and sampling technology
Unsaturated zone tracer tests
Preferential flow paths
Unsaturated anisotropy
Fingering and hydrodynamic instability
Recharge in arid environments
Modeling water flow and solute/colloid transport in the unsaturated zone
Measuring and modeling transport of non-aqueous phase liquids in the unsaturated zone (e.g., carbon tetrachloride)
In addition to the above topics, results of studies relating to other aspects of unsaturated zone science included the following:
Ground-water recharge in humid regions
Aquifer recharge from ephemeral streams and upland areas
Artificial recharge and aquifer storage
Heat and water flow in the unsaturated zone
Methods for measuring and estimating evapotranspiration
Flow, diffusion, and reaction of gases in the unsaturated zone
Watershed-scale transport of agricultural chemicals from the soil to ground water
Bioremediation and transformation of contaminants in the unsaturated zone
Bill Herkelrath (wnherkel@usgs.gov)
Glendon Gee (glendon.gee@pnl.gov)
Mark Freshley (mark.freshly@pnl.gov)
Geoff Delin (delin@usgs.gov)
Alan Flint (aflint@usgs.gov)
Rick Healy (rwhealy@usgs.gov)
John Nimmo (jrnimmo@usgs.gov)
Dave Stonestrom (dastones@usgs.gov)
Ed Weeks (epweeks@usgs.gov)
31 USGS
42 DOE and DOE-Associated Labs:
25 PNNL
5
CH2MHILL
5
Fluor
2 LBL
1 LANL
1 LLNL
2 ORNL
1 Other
8 State Governments:
4
2
1
1
7 Universities
4
2
1
1 USDA Agricultural Research Service
2 Other
91 Total Participants
Presenter |
Title |
Roy Gephart |
An Overview of |
Andy Ward |
Quantifying the
combined effects of Physical and Chemical Heterogeneities on Field-scale
Reactive Transport |
George Last |
Lithofacies mapping to
estimate the spatial structure of physical and chemical transport
properties |
Raz
Khaleel |
Effective unsaturated
media properties for |
Fred Zhang |
The combined parameter
scaling and inverse technique (CPSIT) to upscale hydraulic parameters at
the Hanford Site |
Glendon Gee |
Water Budget Analysis
of Landfill Covers Using Simplified Models |
Marcus Flury |
Colloid-Facilitated
Transport of Cesium in Variably-Saturated |
Molly Pace |
Unsaturated transport
of U(VI), Cr(VI), Co(EDTA), and Sr through undisturbed |
Bill Herkelrath |
Unsaturated zone
tracer test at the |
Stephen Moysey |
Challenges in
calibrating field-scale relations for estimating water content from ground
penetrating radar data |
Rosemary Knight |
Analysis of Ground
Penetrating Radar Images to Quantify the Spatial Distribution of Water
Content |
Geoff Delin |
Long-term changes in
biodegradation and volatilization rates in the unsaturated zone at the |
John Nimmo |
How fast does water
flow in a macropore? Evidence
from field and lab experiments |
Ming Ye |
Maximum Likelihood
Bayesian Averaging of Alternative Geostatistical Air Permeability Models
for Unsaturated Fractured Tuff. |
David DiCarlo |
Macroscopic flow paths
controlled by pore-scale physics: The story of gravity driven fingering |
Tom Nolan |
NAWQA overview |
Jeff Frey |
Agricultural Chemical
Transport in the Vadose Zone in Leary Weber Ditch, |
Kevin Dennehy |
Water Movement Through
Thick Unsaturated Zones Overlying the High Plains Aquifer |
Ed Weeks |
Transport of
Chlorofluorocarbons and Sulfur Hexafluoride in Thick Unsaturated Zones
Overlying the High Plains Aquifer |
Alan Flint |
Development and
calibration of a potential evapotranspiration model for site or regional
studies |
Rick Healy |
Study of Ground-Water
Recharge Rates in the Northern |
Brian Andraski |
TOXICS/ADRS overview |
Jared Abraham |
DC-resistivity
profiling to study ground-water recharge near the Amargosa Desert Research
Site, |
Michelle Walvoord |
Nitrate retention
beneath nitrogen-limited vegetation in arid climates |
Dave Stonestrom |
Slow
accumulation/quick release of nitrate beneath desert soils: examples from
the |
Dave Pollock |
Office of Ground Water
overview |
Brian Andraski |
Importance and Use of
Plants in Evaluating Water Flow and Contaminant Transport in Arid
Environments |
Brian Andraski (Justin
Mayers) |
Modeling Tritium
Transport Through a Deep Unsaturated Zone, |
Brian Andraski (Ron
Baker) |
Volatile organic
compounds (VOCs) and elevated concentrations of carbon dioxide (CO2)
in unsaturated-zone vapors near a chemical and low-level radioactivity
waste-disposal facility, Amargosa Desert Research Site, |
Mike Johnson |
Quantifying water
losses from the unsaturated zone using evapotranspiration in |
Glendon Gee |
Water and solute
fluxes measured with a water fluxmeter |
Jason Keller |
A method for
correcting diurnal fluctuations in permittivity and electrical
conductivity inferred from TDR measurements in the field. |
Jason Shira |
Vadose Zone Sampling:
Collecting Colloids with Passive Capillary Samplers (PCAPS) |
Kari Winfield |
A Statistical Model
for Predicting Unsaturated Hydraulic Properties of Deep Sediments at the |
Maria Caputo |
Unsaturated Hydraulic
Characterization of Porous Carbonatic Rock in the Laboratory |
Dave Stannard |
Evapotranspiration
Measurements in a Small Subalpine Meadow Using Bowen-Ratio, Eddy
Correlation and Chamber Methods |
Fred Brockman |
Microcosm experiments
and modeling of microbial movement under unsaturated conditions. |
Fred Brockman |
Potential for
microbial stimulation in deep vadose zone sediments by gas-phase
nutrients. |
Lorrie Flint |
Soil Moisture and
Plant Rooting Strategies in the Mojave National Preserve |
Shuihui Dun |
Assessing the
performance of SHAW for predict soil moisture and temperature under
alternative residue managements |
Charles Kincaid |
An Overview of the
System Assessment Capability: Software Design and Implementation |
Chris Brown |
Uranium Leach Rates
and Partition Coefficients as a Function of pH, Ionic Strength, and
Carbonate Solution Concentration |
Will Nichols |
An Overview of the
System Assessment Capability: Inventory and Environmental Transport
Simulation |
Mart Oostrom |
Formation of residual
NAPL in the vadose zone |
Mark Rockhold |
Simulation of Carbon
Tetrachloride Migration from the 216-Z-9 Trench at |
Melanie Mayes |
Coupled Hydrological
and Geochemical Transport of Metal-Organic Complexes in Undisturbed |
Paul Eslinger |
System Assessment
Capability: Impacts and Uncertainty Analysis |
George Last |
A Systematic Approach
for Developing Conceptual Models of Contaminant Transport at the |
Kate Maher |
Reaction rates in the
200 West Area at |
Michael Singleton |
Stable isotope studies
of vadose zone pore waters at the Hanford Site |
Christopher Green |
Measured versus
predicted recharge and transport through a sandy soil in the San Joaquin
Valley, California |
Christopher Heppner |
Estimating Recharge
using Rapid, Wide-Ranging Water Table Fluctuations in a Fractured Rock
Setting |
David Hudson |
Ponded Infiltration
into Twelve 1 Square meter plots of fractured unsaturated welded tuff at |
Kim Perkins |
Comparison of Aquifer
Recharge Estimates Based on Measured and Estimated Hydraulic Properties |
Tom Nolan |
Recharge and
Contaminant Transport at the Subregional Scale |