Observations and simulations of the wind structure in the boundary layer around an isolated mountain during the MATERHORN field experiment
Abstract
We investigate atmospheric boundary layer structure and dynamics during an intensive observational period of the Mountain Terrain Atmospheric Modeling and Observations (MATERHORN) Program at Dugway Proving Ground (an army test range in Utah, USA) in Fall 2012. We use high-resolution data from an airborne Doppler lidar that reveal the interaction of the synoptic flows with the evolution of slope and valley flows around an isolated mountain of a horizontal and vertical scale of about 10 km and 1 km, respectively. The measurements at high spatiotemporal resolution allow a thorough evaluation of the Four-Dimensional Weather System (4DWX), a state-of-the-art meteorological analysis, forecast, and decision-support system which is used operationally at Dugway Proving Ground. We also perform very large eddy simulations using 4DWX to investigate in more detail the turbulent structures and their impact on flow dynamics in the convective boundary layer.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2013
- Bibcode:
- 2013AGUFM.A14D..05D
- Keywords:
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- 3329 ATMOSPHERIC PROCESSES Mesoscale meteorology;
- 3307 ATMOSPHERIC PROCESSES Boundary layer processes;
- 3379 ATMOSPHERIC PROCESSES Turbulence