Atmospheric turbulence measurements in marine fog during CEWCOM-76
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Authors
Fairall, C.W.
Davidson, Kenneth L.
Houlihan, Thomas M.
Schacher, Gordon Everett
Subjects
Fog
turbulence
marine boundary layer
turbulence
marine boundary layer
Advisors
Date of Issue
1977-12-29
Date
12/29/1977
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Atmospheric turbulence parameters epsilon (turbulent energy dissipation rate), and C sub T squared (temperature structure function) were measured in the marine boundary layer during the Cooperative Experiment for West Coast Oceanography and Meteorology (CEWCOM-76). The atmospheric stability was characterized by measurements of profiles of mean wind velocity, temperature and relative humidity. This paper will focus on turbulence properties and turbulent heat flux measured during four marine fog events. The fogs were characterized by a slightly unstable boundary layer with moderate increases of heat flux during the fog. An ensemble average of the fog events showed that C sub T squared and epsilon reached peak values immediately before and after the fog was encountered. An analysis of the dimensionless temperature structure function C sub T squared normalized by the square of the temperature gradient) gave lower values of temperature fluctuations in fog than in clear air
Type
Technical Report
Description
Series/Report No
Department
Organization
Graduate School of Operational and Information Sciences (GSOIS)
Identifiers
NPS Report Number
NPS61-77-004
Sponsors
Prepared for: Naval Air Systems Command, AIR 370, Washington D.C.
Funder
NA
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.