Overview
Gabriel G. Katul received his B.E. degree in 1988 at the American University of Beirut (Beirut, Lebanon), his M.S. degree in 1990 at Oregon State University (Corvallis, OR) and his Ph.D degree in 1993 at the University of California in Davis (Davis, CA). He currently holds a distinguished Professorship in Hydrology and Micrometeorology at the Department of Civil and Environmental Engineering at Duke University (Durham, NC). He was a visiting fellow at University of Virginia (USA) in 1997, the Commonwealth Science and Industrial Research Organization (Australia) in 2002, the University of Helsinki (Finland) in 2009, the FulBright-Italy Distinguished Fellow at Politecnico di Torino (Italy) in 2010, the École polytechnique fédérale de Lausanne (Switzerland) in 2013, Nagoya University (Japan) in 2014, University of Helsinki (Finland) in 2017, the Karlsruher Institute for Technology (Germany) in 2017, Princeton University (USA) in 2020, and CzechGlobe (Brno - Czech Republic) in 2023. He received several honorary awards, including the inspirational teaching award by the students of the School of the Environment at Duke University (in 1994 and 1996), an honorary certificate by La Seccion de Agrofisica de la Sociedad Cubana de Fisica in Habana (in 1998), the Macelwane medal and became thereafter a fellow of the American Geophysical Union (in 2002), the editor’s citation for excellence in refereeing from the American Geophysical Union (in 2008), the Hydrologic Science Award from the American Geophysical Union (in 2012), the John Dalton medal from the European Geosciences Union (in 2018), the Outstanding Achievements in Biometeorology Award from the American Meteorological Society (in 2021) and later became an elected fellow of the American Meteorological Society (in 2024), and the recipient of the American Meteorological Society hydrologic science medal (in 2025). Katul was elected to the National Academy of Engineering (in 2023) for his contributions in eco-hydrology and environmental fluid mechanics. He served as the Secretary General for the Hydrologic Science Section at the American Geophysical Union (2006-2008). His research focuses on micro-meteorology and near-surface hydrology with emphasis on heat, momentum, carbon dioxide, water vapor, ozone, particulate matter (including aerosols, pollen, and seeds) and water transport in the soil-plant-atmosphere system as well as their implications to a plethora of hydrological, ecological, atmospheric and climate change related problems.
Current Appointments & Affiliations
Recent Publications
Is There a Scalar Atmospheric Surface Layer Within a Convective Boundary Layer? Implications for Flux Measurements
Journal Article Geophysical Research Letters · March 16, 2025 Top-down entrainment shapes the vertical gradients of sensible heat, latent heat, and CO2 fluxes, influencing the interpretation of eddy covariance (EC) measurements in the unstable atmospheric surface layer (ASL). Using large eddy simulations for convecti ... Full text CiteThe Turbulent Pressure Spectrum Within the Roughness Sublayer of a Subarctic Forest Canopy
Journal Article Journal of Geophysical Research: Atmospheres · February 28, 2025 The turbulent static pressure spectrum (Formula presented.) as a function of longitudinal wavenumber (Formula presented.) in the roughness sublayer of forested canopies is of interest to a plethora of problems such as pressure transport in the turbulent ki ... Full text CiteRelating flow resistance to equivalent roughness
Journal Article Advances in Water Resources · January 1, 2025 Describing flow resistance using the physical properties of an underlying surface is a recalcitrant problem in overland flow models. If discharge measurements are available, an equivalent roughness (e.g., Manning's n) can be calibrated to represent the eff ... Full text CiteRecent 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 - 2023View All Grants