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NP3.2

Subgrid modeling and parameterization in nonlinear geosystems
Convener: Isabel de Lima  | Co-Convener: Fernando Porté-Agel 
Orals
 / Thu, 16 Apr, 08:30–10:00  / Room B3
Posters
 / Attendance Fri, 17 Apr, 08:30–10:00  / Yellow Posters
There has been important progress over the last decade in the theoretical development and validation of models using scaling properties to represent geophysical processes. Many of these processes are highly nonlinear and intermittent over a wide range of physical scales.

This session is intended to take stock of the current status of modeling concepts and techniques that address explicitly the multiscale character of geophysical processes at the various scale-ranges (e.g. complex land-air or air-sea interfaces, hydrological, global atmospheric, topographic). Of particular interest is the role of scaling phenomenologies and dynamic down- or up-scaling techniques in formulating subgrid parameterizations. The session will also address the current status of multiphysics parameterizations, when many altogether different processes (with possibly very different scaling properties) need to be combined in simplified descriptions at various scales. Contributions reporting theoretical, numerical, and field or laboratory experimental results, as well as engineering applications, are welcome.

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Solicited speakers:
Joe Tribbia (NCAR)
Public information: The withdrawn talk at 9:30-9:45 will be replaced by the oral presentation of the contributed abstract EGU2015-925, In situ measurements of wind and current speed and relationship between output power and turbulence, by Olmo DURAN MEDINA, François G. SCHMITT, Alexei SENTCHEV, and Rudy CALIF.