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美国政府科技报告
>Measurement of Atmospheric Boundary Layer Turbulent Fluxes with the Duke University Helicopter Observation Platform (HOP) in Support of CHATS; Final rept. 20 Apr 2007-19 Jan 2008
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Measurement of Atmospheric Boundary Layer Turbulent Fluxes with the Duke University Helicopter Observation Platform (HOP) in Support of CHATS; Final rept. 20 Apr 2007-19 Jan 2008
The main objective of the Canopy Horizontal Array Turbulence Studies (CHATS) was to provide the relevant data needed to improve the parameterization of sub-filter-scale (SFS) processes in the roughness sub-layer that is affected by canopy-atmosphere interactions. For that purpose, NCAR deployed in March- June 2007 an array of sonic anemometers at different heights and lateral separations in a homogeneous walnut orchard in the Central Valley of California so as to capture the influence of the wake-scale motions in the lee of vegetation. Together with this array, other instruments (including a high tower and a new eye-safe lidar) were operating during the field campaign.
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