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I am a Soil and Environmental Physicist and work on advancing the management of natural and agricultural ecosystems within the context of a changing global climate. My current research is mainly focused on remote sensing of land surface properties (e.g., soil moisture and evapotranspiration) and the optimization and management of soilless culture production systems.Show Less
VOSviewer
Courses
- MMEFSModeling of Mass and Energy Flow in Soils
- SPSoil Physics
Grants
- A Novel Approach to Remote Sensing of Evapotranspiration to Improve Water Use Efficiency Across Crop Production Systems
Principal Investigator (PI)
2020
$499.0K
Active - Collaborative Research: Novel In Situ Measurement and Remote Sensing Techniques for Characterization of Near-Surface Soil Hydrology
Principal Investigator (PI)
2015
$324.3K
- Acquisition of an Instrumentation Array to Monitor and Model Water, Carbon and Energy Fluxes at the Hillslope Scale in the Landscape Evolution....
Co-Investigator (COI)
2014
$188.2K
- Optimization of Advanced Greenhouse Substrates Based on Physicochemical Characterization, Numerical Simulations, and Tomato Growth Experiments
Principal Investigator (PI)
2014
$153.0K
- Novel Measurement Techniques for Continuous Monitoring of Greenhouse Gas Emissions From Agricultural Feeding Operations in the Western U.S.
Principal Investigator (PI)
2010
$278.8K
- A Novel Approach to Quantifying Soil Evaporation Rates With High Resolution and Thermal Imaging and Heat Flux Measurements
Principal Investigator (PI)
2009
$447.9K
- Development of Efficient X-Ray CT Image Segmentation Techniques for Quantitative Analysis of Phase Distribution and Flow Processes in Porous Media
Principal Investigator (PI)
2009
$249.8K
- Upgrade of Weighing Lysimeter Facility for Studying Ecosystem and Vadose Zone Dynamics in Arid Environments
Principal Investigator (PI)
2008
$296.1K
Publications (166)
Recent
- Towards the effects of moss-dominated biocrusts on surface soil aeration in drylands: Air permeability analysis and modeling
2023
- Contribution of organic carbon to the total specific surface area of soils with varying clay mineralogy
2023
- Cation exchange capacity and soil pore system play key roles in water vapour sorption
2022
- A novel physical-empirical model linking shortwave infrared reflectance and soil water retention
2022
- Cation Exchange Capacity and Soil Pore System Play the Key Role in Water Vapour Sorption
2022
- Short- and mid-term forecasts of actual evapotranspiration with deep learning
2022
- Genome Wide Association Study Uncovers the QTLome for Osmotic Adjustment and Related Drought Adaptive Traits in Durum Wheat
2022
- Linking water vapor sorption to water repellency in soils with high organic carbon contents
2021
- Estimation of root zone soil moisture from ground and remotely sensed soil information with multisensor data fusion and automated machine learning
2021
- Adaptation and validation of the ParSWMS numerical code for simulation of water flow and solute transport in soilless greenhouse substrates
2021
- Effects of increasing water activity on the relationship between water vapor sorption and clay content
2021
- Combining Vis–NIR spectroscopy and advanced statistical analysis for estimation of soil chemical properties relevant for forest road construction
2021
- The Feasibility of Shortwave Infrared Imaging and Inverse Numerical Modeling for Rapid Estimation of Soil Hydraulic Properties
2021
- The effects of irrigation frequency on water and heat regimes in different substrates and their mixtures: Tomato as a case study
2021
- Estimation of soil specific surface area from adsorbed soil water content
2021
- Incorporating effects of surface roughness and probing molecule size for estimation of soil specific surface area
2021
- Estimating specific surface area: Incorporating the effect of surface roughness and probing molecule size
2021
- Estimating Atterberg limits of soils from hygroscopic water content
2021
- Information depth of NIR/SWIR soil reflectance spectroscopy
2021
- Characterization of Physicochemical and Hydraulic Properties of Organic and Mineral Soilless Culture Substrates and Mixtures
2020
- Combining visible near-infrared spectroscopy and water vapor sorption for soil specific surface area estimation
2020
- Water cycling (pools and movement) through an enclosed tropical forest in response to drought.
2020
- A new mathematical formulation for remote sensing of soil moisture based on the Red-NIR space
2020
- Clay content and mineralogy, organic carbon and cation exchange capacity affect water vapour sorption hysteresis of soil
2020
- The Paramount Societal Impact of Soil Moisture
2019
- Inorganic and synthetic organic components of soilless culture and potting mixtures
2019
- Ground, Proximal, and Satellite Remote Sensing of Soil Moisture
2019
- A New Optical Remote Sensing Technique for High-Resolution Mapping of Soil Moisture
2019
- Improved estimation of clay content from water content for soils rich in smectite and kaolinite
2019
- Global Estimates of Land Surface Water Fluxes from SMOS and SMAP Satellite Soil Moisture Data
2019
- An analytical model for estimation of land surface net water flux from near-surface soil moisture observations
2019
- Application of Satellite Remote Sensing for Estimation of Dust Emission Probability in the Urmia Lake Basin in Iran
2019
- Global environmental changes impact soil hydraulic functions through biophysical feedbacks
2019
- Soilless Culture
2019
- Applicability of the Guggenheim-Anderson-Boer water vapour sorption model for estimation of soil specific surface area
2018
- A Novel Shortwave Infrared Proximal Sensing Approach to Quantify the Water Stability of Soil Aggregates
2018
- Particle size effects on soil reflectance explained by an analytical radiative transfer model
2018
- Modeling Moisture and Temperature Dependent Emissions of Carbon Dioxide and Methane from Drying Dairy Cow Manure
2018
- Modeling temperature and moisture dependent emissions of carbon dioxide and methane from drying dairy cow manure
2018
- Mapping soil moisture with the OPtical TRApezoid Model (OPTRAM) based on long-term MODIS observations
2018
- Prediction of the soil water retention curve for structured soil from saturation to oven-dryness
2017
- A TDR Array Probe for Monitoring Near-surface Soil Moisture Distribution
2017
- High-resolution shortwave infrared imaging of water infiltration into dry soil
2017
- The optical trapezoid model: A novel approach to remote sensing of soil moisture applied to Sentinel-2 and Landsat-8 observations
2017
- Hydraulic Conductivity of Stratified Unsaturated Soils: Effects of Random Variability and Layering
2017
- Retrieval of AirMOSS Root-Zone Soil Moisture Profile with a Richards' Equation-Based Approach
2017
- High Resolution Shortwave Infrared Imaging of Water Infiltration into Dry Soil
2017
- Applicability of the Guggenheim–Anderson–Boer water vapour sorption model for estimation of soil specific surface area
2017
- Predicting Near-Surface Moisture Content of Saline Soils from Near-Infrared Reflectance Spectra with a Modified Gaussian Model
2016
- Prediction of biopore- and matrix-dominated flow from X-ray CT-derived macropore network characteristics
2016
- Advancing NASA’s AirMOSS P-Band Radar Root Zone Soil Moisture Retrieval Algorithm via Incorporation of Richards’ Equation
2016
- A critical evaluation of the Miller and Miller similar media theory for application to natural soils
2016
- Evaluation of theoretical and empirical water vapor sorption isotherm models for soils
2015
- Macropore flow at the field scale: predictive performance of empirical models and X-ray CT analyzed macropore characteristics
2015
- Effects of biochar and manure amendments on water vapor sorption in a sandy loam soil
2015
- Prediction of clay content from water vapour sorption isotherms considering hysteresis and soil organic matter content
2015
- Adsorption and capillary processes in variably saturated porous media-pore scale hydrostatic and hydrodynamic considerations
2015
- Effects of soil bulk density on gas transport parameters and pore-network properties across a sandy field site
2015
- Reply to comments on "Column-scale unsaturated hydraulic conductivity estimates in coarse-textured homogeneous and layered soils derived under steady-state evaporation from a water table" [J. Hydrol. 519 (2014), 1238-1248]
2015
- A New Two-Stage Approach to predicting the soil water characteristic from saturation to oven-dryness
2015
- Effects of soil compaction and organic carbon content on preferential flow in loamy field soils
2015
- The Landscape Evolution Observatory: A large-scale controllable infrastructure to study Earth-surface processes.
2015
- Quantification of soil pore network complexity with X-ray computed tomography and gas transport measurements
2015
- Effects of ct number derived matrix density on preferential flow and transport in a macroporous agricultural soil
2015
- Relating soil specific surface area, water film thickness, and water vapor adsorption
2014
- Simultaneous loss of soil biodiversity and functions along a copper contamination gradient: When soil goes to sleep
2014
- Evaluation of a Fully Automated Analyzer for Rapid Measurement of Water Vapor Sorption Isotherms for Applications in Soil Science
2014
- On the value of soil resources in the context of natural capital and ecosystem service delivery
2014
- Gas diffusion-derived tortuosity governs saturated hydraulic conductivity in sandy soils
2014
- Physical and thermal characteristics of dairy cattle manure
2014
- Column-scale unsaturated hydraulic conductivity estimates in coarse-textured homogeneous and layered soils derived under steady-state evaporation from a water table
2014
- Pore structure of natural and regenerated soil aggregates: An x-ray computed tomography analysis
2014
- Rapid and Fully Automated Measurement of Water Vapor Sorption Isotherms: New Opportunities for Vadose Zone Research
2014
- Soil structure and microbial activity dynamics in 20-month field-incubated organic-amended soils
2014
- Impact of Long-Term Fertilization Practice on Soil Structure Evolution
2014
- Methods and Techniques for Measuring Gas Emissions from Agricultural and Animal Feeding Operations
2014
- Modeling gravity effects on water retention and gas transport characteristics in plant growth substrates
2014
- New Perspectives for the Application of High-Resolution Benchtop X-Ray MicroCT for Quantifying Void, Solid and Liquid Phases in Soils
2014
- Soil Structure Regeneration and Microbial Activity in 20-Month Field-Incubated Organic-Amended Soils of Varying Clay Mineralogy
2014
- Evaluation of Standard Calibration Functions for Eight Electromagnetic Soil Moisture Sensors
2013
- Soil Specific Surface Area and Non-Singularity of Soil-Water Retention at Low Saturations
2013
- Measurement Accuracy of a Multiplexed Portable FTIR-Surface Chamber System for Estimating Gas Emissions
2013
- Design and Characterization of Greenhouse Growth Substrates Based on Gas Diffusivity
2013
- Density and permeability of a loess soil: Long-term organic matter effect and the response to compressive stress
2013
- Segmentation of X-Ray CT Data of Porous Materials: A Review of Global and Locally Adaptive Algorithms
2013
- Gas diffusivity-based design and characterization of greenhouse growth substrates
2013
- Integral parameters for characterizing water, energy, and aeration properties of soilless plant growth media
2013
- Measurement accuracy of a multiplexed portable FTIR - Surface chamber system for estimating gas emissions
2013
- Electromagnetic induction for mapping textural contrasts of mine tailing deposits
2013
- Beyond earth: Designing root zone environments for reduced gravity conditions
2012
- Soil architecture and physicochemical functions: An introduction
2012
- Robotic lake lander test bed for autonomous surface and subsurface exploration of Titan lakes
2012
- Unsupervised 3-D Multiphase Segmentation of X-Ray CT Data of Porous Materials
2012
- Simple predictive models for saturated hydraulic conductivity of technosands
2012
- Application of High-Resolution Thermal Imaging and Novel Heat Pulse Technology to Quantify Soil Evaporation
2012
- A New Algorithm for Determining Soil Evaporation Using Heat Pulse Probe Measurements
2012
- Hygroscopic Water Content as a Surrogate for Clay Percentage in Proximal Soil Sensing
2012
- Comparison of Commonly-Applied Electromagnetic Sensors for Soil Water Content and Electrical Conductivity Measurements in Mineral, Organic and Saline Soils
2012
- Alternating Partial Soil Surface Wetting to Optimize Leaching A Model Analysis
2012
- Predicting Soil-Water Characteristics from Volumetric Contents of Pore-Size Analogue Particle Fractions
2012
- Determination of Subsurface Soil Evaporation using a Heat Pulse Probe Array
2012
- Temporal Variations in Greenhouse Gas Emissions from Dairy and Beef Cow Manure
2012
- Natural capital, ecosystem services, and soil change: Why soil science must embrace an ecosystems approach
2012
- Metal Oxide Gas Sensor Performance Compared with a FTIR Gas Analyzer for Monitoring Regulated and Greenhouse Gas Emissions from Manure Sources
2012
- Monitoring Temporal Variations In Greenhouse and Regulated Gas Emissions From Cow Manure In Relation to Moisture Content and Temperature
2012
- Estimation of soil clay content from hygroscopic water content measurements
2012
- A Multiplexing System for Monitoring Greenhouse and Regulated Gas Emissions from Manure Sources using a Portable FTIR Gas Analyzer
2012
- Prediction of the soil water characteristic from soil particle volume fractions
2012
- Relationship between specific surface area and the dry end of the water retention curve for soils with varying clay and organic carbon contents
2011
- Metal Oxide Gas Sensors for Monitoring Regulated and Greenhouse Gas Fluxes from Manure Sources
2011
- Erratum: Numerical evaluation of subsurface soil water evaporation derived from sensible heat balance (Water Resources Research (2011) 47 (W02547) DOI: 10.1029/2010WR009866)
2011
- An Advanced Bayesian Algorithm for Multiphase Segmentation of 3-D X-Ray Micro Computed Tomography Data of Porous Materials
2011
- Modeling and correction of soil penetration resistance for varying soil water content
2011
- Three-Dimensional Multiphase Segmentation of X-Ray CT Data of Porous Materials Using a Bayesian Markov Random Field Framework
2011
- Greenhouse Gas Emissions from Agriculture and Animal Operations: Influencing Factors, Measurement Limitations, and Potential Mitigation Strategies
2011
- Geophysical Characterization of Inactive Mine Tailings - A First Step for Revegetation
2011
- A New Generation of High-Resolution Benchtop Micro-CT Scanners for Application in Earth Sciences
2011
- Evaluation of an advanced benchtop Micro-Computed Tomography system for quantifying porosities and pore-size distributions of two Brazilian Oxisols
2011
- An Automated Microlysimeter for Long-Term Monitoring of Soil Evaporation
2011
- Numerical evaluation of subsurface soil water evaporation derived from sensible heat balance
2011
- Evaluation of Commercially Available Electromagnetic Sensors for Measuring Soil Water Content and Electrical Conductivity in Mineral, Organic and Saline Soils
2011
- A Penta-Needle Heat Pulse Probe Array for Soil Subsurface Evaporation and Heat Flux Estimates
2011
- Physicochemical controls on initiation and evolution of desiccation cracks in sand-bentonite mixtures: X-ray CT imaging and stochastic modeling
2011
- Gas Diffusivity-Based Analysis of Tomato Growth Media
2011
- Soil Specific Surface Area from Hyper-Dry-Region Water Retention: Links to External and Internal Surface Areas and the Clay to Carbon Ratio
2011
- Partitioning Evaporation and Infiltration Processes with an Array of Multifunction Heat Pulse Probes
2011
- Evaluation of Electromagnetic Sensors Using Acetic Acid/Water Mixtures - Dielectric Constant and Electrical Conductivity Responses
2011
- Quantification and Monitoring of Gas Emission from Agricultural Sources: Measurement Technology and Limitations
2011
- Multiphase Segmentation of 3-D X-Ray Micro Computed Tomography Data of Porous Materials
2011
- The Application of X-ray Computed Tomography for Characterization of Surface Crack Networks in Bentonite-Sand Mixtures
2010
- Application of segmentation for correction of intensity bias in x-ray computed tomography images
2010
- Quantitative pore-scale investigations of multiphase Bio/Geo/Chemical processes
2010
- Multifractal analysis of discretized X-ray CT images for the characterization of soil macropore structures
2010
- Liquid behavior in partially saturated porous media under variable gravity
2009
- Multifractal features of 3D macropore geometry of structured soil columns with X-ray computer tomography
2009
- Segmentation of X-ray computed tomography images of porous materials: A crucial step for characterization and quantitative analysis of pore structures
2009
- Economical and environmental implications of solid waste compost applications to agricultural fields in Punjab, Pakistan
2009
- Providing optimal root-zone fluid fluxes: Effects of hysteresis on capillary-dominated water distributions in reduced gravity
2009
- Physical characterization of greenhouse substrates for automated irrigation management
2008
- Measurements and modeling of variable gravity effects on water distribution and flow in unsaturated porous media
2007
- Reply to comment by Stefan Finsterle on Seepage into drifts and tunnels in unsaturated fractured rock
2006
- Hydraulic properties of swelling clay-sand mixtures: Microscale modeling and measurements
2006
- Sampling silica and ferrihydrite colloids with fiberglass wicks under unsaturated conditions
2006
- Linking the Gardner and Campbell models for water retention and hydraulic conductivity in near-saturated soil
2006
- Measurement of porous media hydraulic properties during parabolic flight induced microgravity
2005
- Water films and scaling of soil characteristic curves at low water contents
2005
- Physical and hydraulic properties of baked ceramic aggregates used for plant growth medium
2005
- Challenges to understanding fluid behavior in plant growth media under microgravity
2005
- Seepage into drifts and tunnels in unsaturated fractured rock
2005
- Liquid-Gas Interfacial Configurations in Angular Pores Under Microgravity
2004
- Flow and Distribution of Fluid Phases Through Porous Plant Growth Media In Microgravity
2004
- Hydraulic functions for swelling soils: Pore scale considerations
2003
- Hydraulic conductivity of partially saturated fractured porous media: Flow in a cross-section
2003
- Reply to comment by N. Kartal Toker, John T. Germaine, and Patricia J. Culligan on "Cavitation during desaturation of porous media under tension"
2003
- Flow and distribution of fluid phases through porous plant growth media in microgravity: Progress to date
2002
- Unsaturated hydraulic conductivity of structured porous media: A review of liquid configuration-based models
2002
- Cavitation during desaturation of porous media under tension
2002
- Hydraulic conductivity of variably saturated porous media: Film and corner flow in angular pore space
2001
- Adsorption and capillary processes in variably saturated porous media pore scale hydrostatic and hydrodynamic considerations
2001
- Hydraulic functions for macroporous soils
2000
- Flow in unsaturated fractured porous media: Hydraulic conductivity of rough surfaces
2000
- Liquid retention and interfacial area in variably saturated porous media: Upscaling from single-pore to sample-scale model
1999
- Adsorption and capillary condensation in porous media: Liquid retention and interfacial configurations in angular pores
1999
- Measurement of volumetric soil water content under field conditions with TDR and gypsum blocks | Wasseranteilsbestimmung unter feldbedingungen mittels time domain reflectometry und gipsblöcken
1997
- Measurement of volumetric soil water content under field conditions with TDR and gypsum blocks
1997
- FIELD TESTING SITES FOR THE EVALUATION OF NITRATE LEACHING IN AGRICULTURAL AREAS
1992