Modification of the Eckman Wind Profile by Roll Circulations

Abstract

Observed wind and temperature profiles used as basic states in models often contain modification by the secondary flow. The correct basic state however, is the one existing prior to the onset of roll development. A low-order spectral model allows for efficient study of secondary instability and its effects on the initial basic state variables. Using an Ekman wind profile as an idealized case, we show that errors in the initial wind profile can lead to significant errors in the model results, particularly in values of the model however, is to observed boundary layers. Arctic leads, boundary layer, mesoscale.

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Document Details

Document Type
Technical Report
Publication Date
Oct 18, 1991
Accession Number
ADA252198

Entities

People

  • Hampton N. Shirer
  • Tracy Haack

Tags

DTIC Thesaurus Topics

  • Aspect Ratio
  • Boundaries
  • Boundary Layer
  • Coefficients
  • Coordinate Systems
  • Flow
  • Geostrophic Wind
  • Instability
  • Lapse Rate
  • Layers
  • Numerical Analysis
  • Orientation (Direction)
  • Research Management
  • Secondary Flow
  • Thermal Instability
  • Weather Forecasting
  • Wind

Readers

  • Atmospheric Science/Meteorology
  • Computational Modeling and Simulation
  • Fluid Mechanics and Fluid Dynamics.