Sensible Heat Flux From Arid Regions: A Simple Flux‐Variance Method


Journal Article

Similarity models in the inner region of the unstable atmospheric boundary layer (ABL) are generally based on four dimensional parameters: buoyancy, friction velocity, surface heat flux, and the height above the land surface. in the free convection limit the friction velocity can be neglected, thus reducing the measurement needs in practical applications. Some field measurements of the second moment of temperature have indicated that free convection scaling of this statistic may be extended into more dynamic regimes, namely, the “dynamic‐convective” and, perhaps, the “dynamic” regions of the ABL. An advantage of this approach is that the sensible heat flux can be estimated without shear stress measurements. This temperature variance similarity model is applied for a wide range of unstably stratified flows over the dry Owens Lake, in southeastern California. The simple free convection model of the temperature variance is accurate for sensible heat flux estimation across the full range of unstable atmospheric stability conditions. Copyright 1995 by the American Geophysical Union.

Full Text

Duke Authors

Cited Authors

  • Albertson, JD; Parlange, MB; Katul, GG; Chu, C; Stricker, H; Tyler, S

Published Date

  • January 1, 1995

Published In

Volume / Issue

  • 31 / 4

Start / End Page

  • 969 - 973

Electronic International Standard Serial Number (EISSN)

  • 1944-7973

International Standard Serial Number (ISSN)

  • 0043-1397

Digital Object Identifier (DOI)

  • 10.1029/94WR02978

Citation Source

  • Scopus