Measurement of Atmospheric Boundary Layer Turbulent Fluxes with the Duke University Helicopter Observation Platform (HOP) in Support of CHATS

Abstract

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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Document Details

Document Type
Technical Report
Publication Date
Mar 04, 2008
Accession Number
ADA483818

Entities

People

  • Roni Avissar

Organizations

  • Duke University

Tags

Communities of Interest

  • Air Platforms
  • Human Systems
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Agreements
  • Algorithms
  • Boundaries
  • Boundary Layer
  • Data Acquisition
  • Data Processing
  • Department Of Defense
  • Engineering
  • Layers
  • Mathematics
  • Measurement
  • Observation
  • Students
  • Turbulence
  • Wind
  • Wind Direction

Fields of Study

  • Environmental science

Readers

  • Fluid Dynamics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Wetland-Land-Environmental Management.