A54B:
Boundary Layer Processes and Turbulence IV


Submit an Abstract to this Session


Session ID#: 58217

Session Description:
Turbulent exchange of momentum, heat, gases, and particles at the land-atmosphere-ocean interfaces provide essential forcing for atmospheric and oceanic dynamics, surface energy and water budget, carbon and nitrogen cycles, pollutant dispersion, wind-pollination, and spread of plant diseases. The dynamic structure of turbulent boundary layers governs vertical mixing, which plays essential roles in long distance transport, cloud formation, chemical reactions, and phytoplankton growth. Improving the knowledge of boundary layer processes and turbulence is indispensable for predicting and understanding weather, climate, environment, and ecological systems. This session will present contemporary themes in turbulent boundary layer studies based on theoretical, experimental, and numerical viewpoints. Topics of interest include: dry and moist ABL dynamics, turbulent exchange processes over heterogeneous landscapes including urban and plant canopies, flow over mountainous terrain, marine atmospheric boundary layer, dispersion and diffusion in turbulent boundary layers, evapotranspiration, the role of turbulence in biogeochemical cycles, and surface-boundary layer system feedbacks.
Primary Convener:  Ying Pan, Pennsylvania State University Main Campus, University Park, PA, United States
Conveners:  Dan Li, Boston University, Department of Earth and Environment, Boston, MA, United States, Marc Calaf, University of Utah, Salt Lake City, UT, United States and Natalie Wagenbrenner, USDA Forest Service, Vallejo, CA, United States
Primary Liaison:  Stephan De Wekker, University of Virginia, Charlottesville, VA, United States
Chairs:  Ying Pan, Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, PA, United States and Marc Calaf, University of Utah, Salt Lake City, UT, United States
OSPA Liaison:  Ying Pan, Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, PA, United States

Cross-Listed:
  • B - Biogeosciences
  • GC - Global Environmental Change
  • H - Hydrology
Index Terms:

0315 Biosphere/atmosphere interactions [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3307 Boundary layer processes [ATMOSPHERIC PROCESSES]
3322 Land/atmosphere interactions [ATMOSPHERIC PROCESSES]
3379 Turbulence [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

An assessment of the role of surface sensible heat flux and the atmosphere inversion on the breakup time in a highly complex terrain (453642)
Laura Herrera, Universidad Nacional de Colombia, Medellin, Medellin, Colombia and Carlos David Hoyos Ortiz, Sistema de Alerta Temprana del Valle de Aburra (SIATA);Universidad Nacional de Colombia, Sede Medellín, Departamento de Geociencias y Medio Ambiente/Geoscience and Environment Department, Medellín, Colombia; Universidad Nacional de Colombia, Sede Medellín, Departamento de Geociencias y Medio Ambiente / Geoscience and Environment Department, Medellín, Colombia
Airborne Doppler Wind Lidar Investigations of OLEs and Turbulence Transports in the Marine Boundary Layer (448317)
George David Emmitt1, Steve Greco1 and Ralph C Foster2, (1)Simpson Weather Associates, Charlottesville, VA, United States, (2)University of Washington, Seattle, WA, United States
Measurements of turbulence in the coupled wind-wave-water system using time-resolved PIV in the new IIHR atmospheric boundary layer wind-wave tunnel (462299)
Corey D Markfort, University of Iowa, Civil and Environmental Engineering, Iowa City, IA, United States
The Importance of Sea-Spray Timescales on the Parameterization of Air-Sea Heat Fluxes (414845)
Tianze Peng, University of Notre Dame, Notre Dame, IN, United States and David H Richter, University of Notre Dame, Department of Civil & Environmental Engineering & Earth Sciences, Notre Dame, United States
A new algebraic subgrid-scale model for flow over and within vegetation canopies (466668)
Weiyi Li, Columbia University, New York, NY, United States, Marcelo Chamecki, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Marc B Parlange, Monash University, Department of Civil Engineering, Melbourne, VIC, Australia and Marco Giovanni Giometto, Columbia University, Department of Civil Engineering and Engineering Mechanics, New York, NY, United States
Aerodynamic roughness parameters of vegetated urban canopies (468099)
Marco Giovanni Giometto, Columbia University of New York, Palisades, NY, United States, Manuel F Schmid, Columbia University, Department of Civil Engineering and Engineering Mechanics, New York, United States and Marc B Parlange, Monash University, Department of Civil Engineering, Melbourne, VIC, Australia
Are 1.5-order TKE-based eddy diffusivity closures a reasonable representation of physical processes underlying turbulent transport in convective and cloudy boundary layers? (458149)
David Andrew New, NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States

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