Search Results - "Ferre, T.P.A."
-
1
Filtering of Period Infiltration in a Layered Vadose Zone: 1. Approximation of Damping and Time Lags
Published in Vadose zone journal (2018)“…Core Ideas We describe an approximation for filtering of periodic infiltration in layered soil. Transitions in soil‐water properties between soil layers affect…”
Get full text
Journal Article -
2
A Screening Tool for Delineating Subregions of Steady Recharge within Groundwater Models
Published in Vadose zone journal (01-06-2014)“…We have developed a screening method for simplifying groundwater models by delineating areas within the domain that can be represented using steady‐state…”
Get full text
Journal Article -
3
Filtering of Periodic Infiltration in a Layered Vadose Zone: 2. Applications and a Freeware Screening Tool
Published in Vadose zone journal (2018)“…Core Ideas Infiltration forcings are filtered (time lagged and damped) with increasing depth. Filtering generally increases with increasing infiltration and…”
Get full text
Journal Article -
4
Interannual to multidecadal climate forcings on groundwater resources of the U.S. West Coast
Published in Journal of hydrology. Regional studies (01-06-2017)“…The U.S. West Coast, including the Pacific Northwest and California Coastal Basins aquifer systems. Groundwater response to interannual to multidecadal climate…”
Get full text
Journal Article -
5
Measuring soil moisture content non-invasively at intermediate spatial scale using cosmic-ray neutrons
Published in Geophysical research letters (01-11-2008)“…Soil moisture content on a horizontal scale of hectometers and at depths of decimeters can be inferred from measurements of low-energy cosmic-ray neutrons that…”
Get full text
Journal Article -
6
Improved extraction of hydrologic information from geophysical data through coupled hydrogeophysical inversion
Published in Water resources research (01-04-2010)“…There is increasing interest in the use of multiple measurement types, including indirect (geophysical) methods, to constrain hydrologic interpretations. To…”
Get full text
Journal Article -
7
The Landscape Evolution Observatory: A large-scale controllable infrastructure to study coupled Earth-surface processes
Published in Geomorphology (Amsterdam, Netherlands) (01-09-2015)“…Zero-order drainage basins, and their constituent hillslopes, are the fundamental geomorphic unit comprising much of Earth's uplands. The convergent topography…”
Get full text
Journal Article -
8
Prediction of the Soil Water Characteristic from Soil Particle Volume Fractions
Published in Soil Science Society of America journal (01-11-2012)“…Modeling water distribution and flow in partially saturated soils requires knowledge of the soil water characteristic (SWC). However, measurement of the SWC is…”
Get full text
Journal Article -
9
Improved extraction of hydrologic information from geophysical data through coupled hydrogeophysical inversion
Published in Water resources research (01-11-2009)“…There is increasing interest in the use of multiple measurement types, including indirect (geophysical) methods, to constrain hydrologic interpretations. To…”
Get full text
Journal Article -
10
Assessing the likely value of gravity and drawdown measurements to constrain estimates of hydraulic conductivity and specific yield during unconfined aquifer testing
Published in Water resources research (01-12-2007)“…Pumping of an unconfined aquifer can cause local desaturation detectable with high‐resolution gravimetry. A previous study showed that signal‐to‐noise ratios…”
Get full text
Journal Article -
11
Relative contributions of transient and steady state infiltration during ephemeral streamflow
Published in Water resources research (01-08-2006)“…Simulations of infiltration during three ephemeral streamflow events in a coarse-grained alluvial channel overlying a less permeable basin-fill layer were…”
Get full text
Journal Article -
12
Parameter estimation for soil hydraulic properties using zero-offset borehole radar: analytical method
Published in Soil Science Society of America journal (01-09-2004)“…Inverse methods to obtain soil hydraulic parameters are becoming increasingly popular, due to their more rapid, complete, and robust estimations of hydraulic…”
Get full text
Journal Article -
13
Climate variability and vadose zone controls on damping of transient recharge
Published in Journal of hydrology (Amsterdam) (01-06-2018)“…•Infiltration flux, period, and hydraulic conductivity are significant predictors of damping.•Transient recharge from climate variability patterns could be…”
Get full text
Journal Article -
14
Parameter equivalence for the Gardner and van Genuchten soil hydraulic conductivity functions for steady vertical flow with inclusions
Published in Advances in water resources (01-07-2005)“…The analytic element method is well suited for the Gardner hydraulic conductivity function, but is limited in describing real soils. Therefore, parameter…”
Get full text
Journal Article -
15
Automated water content reconstruction of zero-offset borehole ground penetrating radar data using simulated annealing
Published in Journal of hydrology (Amsterdam) (19-07-2005)“…The automated inversion of water content profiles from first arrival travel time data collected with zero-offset borehole ground penetrating radar is…”
Get full text
Journal Article -
16
Considerations for measuring pressure head and water content in inclined boreholes
Published in Water resources research (01-12-2008)“…Angled boreholes have been proposed to improve water content and pressure head monitoring in deep vadose zones by reducing the impact of the borehole on…”
Get full text
Journal Article -
17
Steady state lateral water flow through unsaturated soil layers
Published in Water resources research (01-08-2008)“…The effects of gravity on flow through variably saturated soil layers are investigated quantitatively using two new analytical solutions and a numerical model…”
Get full text
Journal Article -
18
Prediction of the glyphosate sorption coefficient across two loamy agricultural fields
Published in Geoderma (01-12-2015)“…Sorption is considered one of the most important processes controlling pesticide mobility in agricultural soils. Accurate predictions of sorption coefficients…”
Get full text
Journal Article -
19
Linking the Gardner and Campell models for water retention and hydraulic conductivity in near-saturated soil
Published in Soil science (2006)Get full text
Journal Article -
20
Advancing process-based watershed hydrological research using near-surface geophysics: a vision for, and review of, electrical and magnetic geophysical methods
Published in Hydrological processes (30-08-2008)“…We want to develop a dialogue between geophysicists and hydrologists interested in synergistically advancing process based watershed research. We identify…”
Get full text
Journal Article