A11R:
Atmospheric Boundary Layer Processes and Turbulence I

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Session ID#: 16104

Session Description:
Turbulent mixing in Earth’s atmospheric boundary layer (ABL) is responsible for the surface exchange of trace gases, momentum, and energy with the atmosphere. Improved understanding of ABL dynamics, which requires characterization of ABL turbulence in response to a range of ambient conditions (forcing), is necessary for predicting and understanding processes in hydrology, ecology, meteorology, and climatology. This session will present contemporary themes in ABL research based on theoretical, experimental, and numerical viewpoints. Topics of interest include: dry and moist ABL dynamics, surface-atmosphere exchange processes over heterogeneous and complex terrain including urban environments and plant canopies, flow over mountainous terrain, the marine atmospheric boundary layer, dispersion and diffusion in the atmosphere, evapotranspiration, the role of turbulence in biogeochemical cycles, and feedbacks in the surface-boundary layer system.
Primary Convener:  David H Richter, University of Notre Dame, Department of Civil & Environmental Engineering & Earth Sciences, Notre Dame, United States
Conveners:  David H Richter, University of Notre Dame, Department of Civil & Environmental Engineering & Earth Sciences, Notre Dame, United States, Chad W Higgins, Oregon State University, Biological & Ecological Engineering, Corvallis, OR, United States and William Anderson, University of Texas at Dallas, Mechanical Engineering, Richardson, TX, United States
Chairs:  Chad W Higgins, Oregon State University, Biological & Ecological Engineering, Corvallis, OR, United States, David H Richter, University of Notre Dame, Department of Civil & Environmental Engineering & Earth Sciences, Notre Dame, United States and William Anderson, University of Texas at Dallas, Mechanical Engineering, Richardson, TX, United States
OSPA Liaison:  Chad W Higgins, Oregon State University, Biological & Ecological Engineering, Corvallis, OR, United States

Cross-Listed:
  • B - Biogeosciences
  • H - Hydrology
  • NG - Nonlinear Geophysics
  • OS - Ocean Sciences
Index Terms:

0426 Biosphere/atmosphere interactions [BIOGEOSCIENCES]
3307 Boundary layer processes [ATMOSPHERIC PROCESSES]
3322 Land/atmosphere interactions [ATMOSPHERIC PROCESSES]
3379 Turbulence [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Connecting macroscopic flow properties with turbulent energy spectra in stratified atmospheric surface layers (Invited) (120440)
Dan Li, Boston University, Department of Earth and Environment, Boston, MA, United States and Gabriel George Katul, Duke University, Department of Civil and Environmental Engineering, Durham, United States
Minimizing the Uncertainties in Empirical Estimates of the Bulk Mean Canopy Drag Associated with Non-Stationary Mean Velocity (135773)
Ying Pan, National Center for Atmospheric Research, Advanced Study Program with Mesoscale & Microscale Meteorology Laboratory, Boulder, CO, United States and Edward G Patton, NSF National Center for Atmospheric Research, Boulder, United States
Towards a more comprehensive understanding of the diabatic ABL dynamics: variability of the pressure gradient in time and height (145019)
Mostafa Momen, Princeton University, Princeton, NJ, United States and Prof. Elie Bou-Zeid, Ph.S., Princeton University, Department of Civil and Environmental Engineering, Princeton, NJ, United States
Similarity and Scale Invariance of Velocity and Temperature Structure Functions within and above Dense Canopies  (150765)
Khaled Ghannam, Northeastern University, Civil and Environmental Engineering Department, Boston, MA, United States, Gabriel George Katul, Duke University, Department of Civil and Environmental Engineering, Durham, United States and Marcelo Chamecki, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
Analysis of Atmospheric Flow in Mountainous Terrain Using Multi-Scale Observations and Dimension-Reduction Techniques (156516)
Matthias J Zeeman1, Tirtha Banerjee1, Danijel Belusic2, Peter Brugger1, Matthias Mauder1 and Nikki Vercauteren3, (1)Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research (IMK-IFU), Garmisch-Partenkirchen, Germany, (2)NERC Centre for Ecology & Hydrology, Wallingford, United Kingdom, (3)Free University of Berlin, Berlin, Germany
A New Large Eddy Simulation-based Method for Estimating the Properties of Surface-Driven Convection (175479)
David Andrew New, NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States
Role of Large Eddies in the Breakdown of the Reynolds Analogy in the Unstable Atmospheric Surface Layer (178263)
Kaighin A Mccoll1, Chiel van Heerwaarden2, Gabriel George Katul3, Pierre Gentine4 and Dara Entekhabi1, (1)Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, Cambridge, MA, United States, (2)Max Planck Institute for Meteorology, Hamburg, Germany, (3)Duke University, Department of Civil and Environmental Engineering, Durham, United States, (4)Columbia University, Earth Institute, New York, United States
Alternative Turbulence-Based Surface Similarity Scaling with a variable von Karman coefficient (196783)
Kyaw Tha Paw U1, Jilmarie Stephens2, Eric R Kent3, John Kochendorfer4 and Tom Michael Shapland3,5, (1)University of California Davis, Land, Air and Water Resources, Davis, CA, United States, (2)University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (3)University of California Davis, Davis, CA, United States, (4)NOAA Oak Ridge, Atmospheric Turbulence and Diffusion Division, Oak Ridge, TN, United States, (5)Nicolae Titulescu University, Bucharest, Romania

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