Document Type

Thesis

Degree

Master of Science (MS)

Department

Geosciences

First Advisor's Name

Ping Zhu

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Hugh Willoughby

Third Advisor's Name

Haiyan Jiang

Keywords

FLUX, TURBULENCE, DRAG COEFFICIENT, TOWER

Date of Defense

1-17-2013

Abstract

High-resolution tower observations of turbulent transport processes in the coastal atmospheric surface layer show that the exchange coefficients for momentum, enthalpy, and moisture behave differently for different environmental and atmospheric conditions. The drag coefficient is closely tied to wind speed and turbulent intensity. The exchange coefficient for enthalpy shows a dependence on stability. Analysis of the turbulent kinetic energy budget yields a new parameterization framework that well explains the observed variation of the drag coefficient, particularly at low wind speeds.

Identifier

FI13040303

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