Research Interests
Describing the reciprocal influences between the biosphere and the atmosphere are becoming a scientific imperative as human-induced changes in land surface characteristics are impacting the composition of the atmosphere, which in turn is threatening to excite changes in weather and climate systems. The concentration of efforts to quantify these influences and to develop a predictive framework for them has given rise to a new research field labelled "land-atmosphere exchange". This field is now populated by a community of scientists and engineers originally trained in a cross-section of disciplines. My particular research interests in this domain cover mass, momentum, and energy transfer within the soil-plant-atmosphere system. This domain intersects micro-meteorology, surface hydrology, ecology and carbon/water cycling, and fluid dynamics that spans low and high Reynolds numbers.
Selected Grants
Collaborative Research: Precursors of long-distance aerial transport of microplastics from urban environments
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2020 - 2025Boundary layer theory for canopies covering complex terrain: Going from eddies in motion to biosphere-atmosphere exchanges and their representation in climate models
ResearchPrincipal Investigator · Awarded by University of California - Los Angeles · 2021 - 2025Parameterizing the effects of sub-grid land heterogeneity on the atmospheric boundary layer and convection: Implications for surface climate, variability and extremes
ResearchCo-Principal Investigator · Awarded by National Oceanic and Atmospheric Administration · 2019 - 2023The dynamics of embolism formation and repair in xylem conduits: from bubble scale to loss in plant hydraulic transport capacity
ResearchCo-Principal Investigator · Awarded by National Science Foundation · 2018 - 2022Collaborative Research: Ultra Fine Particle Deposition onto Vegetated Surfaces Situated on Complex Topography: From Leaf to Landscape
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2017 - 2021The Direct and Indirect Effect of Plantation Forestry Expansion on Usable Water in the Southeastern US
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2014 - 2019Training Program in Wireless Intelligent Sensor Networks (WISeNet)
Inst. Training Prgm or CMECo-Principal Investigator · Awarded by National Science Foundation · 2011 - 2018Bridging land-surface fluxes and aerosol concentrations to triggering convective rainfall
ResearchPrincipal Investigator · Awarded by Department of Energy · 2014 - 2018Constraining the Simultaneous Effects of Elevated CO2, Temperature, and Shifts in Rainfall Patterns on Ecosystem Carbon Fluxes Using Multi-Scale Resource Optimization Theories
ResearchPrincipal Investigator · Awarded by Department of Energy · 2011 - 2016How will the Interaction Between Roots and Canopy Physiological Functioning at Night Influence Water and Carbon Fluxes Under Changing Environmental Conditions?
ResearchAdvisor · Awarded by North Carolina State University · 2011 - 2015Collaborative Research:Up-Scaling From Leaf to Canopy the Aerosol-sized Particle Collection Mechanism within a Non-Unifo
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2011 - 2015Hydraulic Controls on Carbon Cycling and Water Exchange Rates of Southern Conifers
ResearchPrincipal Investigator · Awarded by Department of Agriculture · 2011 - 2015Sustainable Use of Water and Soils in Seasonally-dry Regions: Exploring the Continuum between Natural and Intensively-managed Ecosystems
ResearchCo-Principal Investigator · Awarded by National Science Foundation · 2010 - 2013Desertification Risks of Dryland Ecosystems Inferred from the Dynamics of Coherent Spatial Vegetation Patterning
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2010 - 2013Linking Above-Canopy CO2 and Water Vapor Fluxes to Within Canopy Sources and Sinks in Complex Terrain
ResearchPrincipal Investigator · Awarded by Department of Agriculture · 2009 - 2012Collaborative Research: Multiscale Statistical Methodologies to Unravel Complexities in Atmospheric Turbulence Data
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2007 - 2011Ecohydrologic Controls on Convective Rainfall Triggering and Space-Time Development
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2007 - 2011De-convolving the Effects of Rising Atmospheric CO2, Solar Dimming, and Afforestation on Usable Water and Carbon Sequestration Potential in the Southeastern U.S.
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2006 - 2010Controls of Net Ecosystem Exchange at an Old Field, a Pine Plantation, and a Hardwood Forest Under Identical Climatic and Edaphic Conditions
ResearchCo-Principal Investigator · Awarded by Department of Energy · 2000 - 2009Predicting Gene Flow From Transgenic Pine Pollen
ResearchCo-Principal Investigator · Awarded by Department of Agriculture · 2005 - 2008Organized Turbulence over Forested Landscapes: Theoretical Basis for A Low-Dimensional Transport Model
ResearchCo-Principal Investigator · Awarded by National Science Foundation · 2002 - 2006Bayesian Modeling in the Wavelet Domain with Applications in Atmospheric Turbulence
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2000 - 2003To What Extent Can Increased Evapotranspiration Due to Groundwater Irrigation in the Great Plains of the US Alter Regional Climate?
ResearchCo-Principal Investigator · Awarded by National Aeronautics and Space Administration · 1999 - 2003The Role of Canopy Structure on Variability of Water and Heat Fluxes from Forested Watersheds
ResearchPrincipal Investigator · Awarded by National Science Foundation · 1999 - 2002Reducing uncertainty in current and projected carbon sequestration in southeastern US
ResearchCo-Principal Investigator · Awarded by Forest Service · 2000 - 2001The Measurements of Biogenic Emissions from Forest Canopies: Evaluation of Their Role in Oxidant and Particulate Formation
ResearchCo-Principal Investigator · Awarded by Environmental Protection Agency · 1994 - 2001Prediction and Measurements of Oxidant Precursor Emissions from Forested Ecosystems: Scaling from Leaf to Canopy
ResearchCo-Principal Investigator · Awarded by Environmental Protection Agency · 1994 - 1999Bayesian Wavelet with Application in Turbulence Modeling
ResearchCo-Principal Investigator · Awarded by National Science Foundation · 1996 - 1999Spatial Variability of Carbon Dioxide Fluxes in a Homogeneous Pine Forest
ResearchPrincipal Investigator · Awarded by National Institute for Global Environmental Change · 1997 - 1999Establishing a Mobile Gas-exchange and Emission Research Facility
EquipmentCo-Principal Investigator · Awarded by Office of Science & Technology Infrastructure · 1995 - 1999Prediction and Measurements of Oxidant Precursor Emissions from Forested Ecosystems: Scaling from Leaf to Canopy
ResearchCo-Principal Investigator · Awarded by Environmental Protection Agency · 1994 - 1997Land-surface Process in Surface Hydrology: From Research to Education
ResearchPrincipal Investigator · Awarded by National Science Foundation · 1995 - 1997External Relationships
- University of Minnesota
This faculty member (or a member of their immediate family) has reported outside activities with the companies, institutions, or organizations listed above. This information is available to institutional leadership and, when appropriate, management plans are in place to address potential conflicts of interest.