Article
 

Heat Transport in the Atmospheric Boundary Layer

Öffentlich Deposited

Herunterladbarer Inhalt

PDF Herunterladen
https://ir.library.oregonstate.edu/concern/articles/0c483m022

Descriptions

Attribute NameValues
Creator
Abstract
  • The structure of turbulence and transport of heat is examined from data obtained from 11 aircraft soundings executed in heated boundary layers during the Air Mass Transformation Experiment. Various influences on the turbulent transport are revealed by analyzing properties of the joint frequency distribution in polar coordinate. Such an analysis allows determination of a correlation coefficient and fluctuation amplitude as a function of properties of different types of motion comprising the total flow. In particular, the contribution of various events to the total flux is revealed without a priori specification of sampling criteria. In the present case, shear generation of turbulence and broken stratocumulus at the boundary layer top modify the profiles of virtual and sensible heat flux. The upward virtual heat flux shows the usual linear decrease with height but vanishes and becomes downward at the relatively low level of 60% of the boundary layer top. The vertical structure of the heat flux is explicitly related to the vertical evolution of the characteristics of thermals. However, the significant downward heat flux is also associated with warm dry sinking motions organized on horizontal scales of 2–3 times the boundary layer depth.
Resource Type
DOI
Date Available
Date Issued
Citation
Journal Title
Journal Volume
  • 41
Journal Issue/Number
  • 21
Urheberrechts-Erklärung
Funding Statement (additional comments about funding)
  • This material is based upon work supported by the Global Atmospheric research Program of the National Science Foundation under grant ATM-7910042.
Publisher
Language
Replaces

Beziehungen

Parents:

This work has no parents.

Artikel

Miniaturansicht Titel Hochladedatum Sichtbarkeit Aktionen
file details MahrtLarryJCEOASHeatTransferAtmospheric.pdf 2017-07-24 Öffentlich Herunterladen