EOL Seminar: An Integrated View at the High Latitude Atmospheric Boundary Layer & Surface Atmosphere Interaction

Monday, October 3, 2016 - 14:00 to 15:00
FL2- 1022 Main Auditorium
Contact Name: 
Holger Voemel
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An Integrated View at the High Latitude Atmospheric Boundary Layer & Surface Atmosphere Interaction
Javier Fochesatto
Professor of Atmospheric Sciences University of Alaska Fairbanks
Surface-atmosphere interactions are central to understanding current and future trends in weather and climate. Large-scale surface fluxes are the quantities often required for model input and/or validation. However, this research is challenging because it involves the analysis of turbulence data that is best understood only under specific surface and atmospheric boundary layer (ABL) conditions, and is often limited to specific levels within the ABL. Such ideal conditions are not always representative of the local surface and flow properties, nor of the spatial and temporal variation of fluxes owing to those properties. Even within what may be classified as the same surface type, local flux values can vary considerably. Quantifying the relationship between local and large-scale fluxes and their connection to surface properties and ABL-flow regime has been the motivation for numerous field campaigns and remains an unsolved problem. In this seminar, I will describe new observational platforms and methodologies that apply to ABL research and surface turbulent fluxes. I will discuss Boundary Layers and surface fluxes in the most vulnerable ecosystems on earth, the Arctic Tundra and Boreal Forest. I will close this seminar by sharing my strategic research plan in the area of land surface atmosphere interaction and its application to current problems in atmospheric sciences.
Seminar will be webcast at: http://www.fin.ucar.edu/it/mms/fl-live.htm
Monday, 3 October 2016, 2:00 PM
Refreshments 1:45 PM
NCAR-Foothills Laboratory
3450 Mitchell Lane
Bldg 2 Large Auditorium (Rm1022)