A Note On The Contribution Of Dispersive Fluxes To Momentum Transfer Within Canopies

By Davide Poggi, Gabriel G. Katul, John D. Albertson. 2004

162 citations recorded by the source corpus.

Subfields: Atmospheric Science, Earth-Surface Processes, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/f32ecb11ea650295ce0c2e2f609563319585bcf1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atmospheric Science

1. Gabriel G. Katul
2. Davide Poggi
3. Larry Mahrt
4. John D. Albertson
5. E. Bou‐Zeid
6. William Anderson
7. J. Finnigan
8. R. Banta

In Earth-Surface Processes

1. Gabriel G. Katul
2. Davide Poggi
3. John D. Albertson
4. Larry Mahrt
5. I. Harman
6. William Anderson
7. E. Bou‐Zeid
8. J. Finnigan

In Environmental Engineering

1. Gabriel G. Katul
2. Larry Mahrt
3. Davide Poggi
4. J. Finnigan
5. John D. Albertson
6. I. Harman
7. William Anderson
8. E. Bou‐Zeid

Citations in the corpus

• A simple unified theory for flow in the canopy and roughness sublayer (2007, background): “Equation 2 effectively includes the dispersive fluxes that arise due to this averaging within τ and relates them to dU/dz via lm. For dense canopies, as considered here, these dispersive fluxes do not contribute significantly to the total flux of momentum (Bohm et al. 2000; Poggi et al. 2004a ).”
• The Persistent Challenge of Surface Heterogeneity in Boundary-Layer Meteorology: A Review (2020, background): “These smaller-scale variations give rise to the “roughnesss sublayer”, and have been extensively studied to examine flow variability in that layer and the role of dispersive stresses or fluxes (Finnigan 2000; Poggi et al. 2004; Poggi and Katul 2008; Li and Bou-Zeid 2019).”
• ONE- and TWO-Equation Models for Canopy Turbulence (2004, methodology): “In dense canopies, dispersive fluxes are small and typically neglected; however, recent experimental evidence suggest that dispersive fluxes can be comparable in magnitude to the conventional Reynolds stresses in sparse canopies (e.g., Poggi et al., 2004b).”
• Momentum Transfer and Turbulent Kinetic Energy Budgets within a Dense Model Canopy (2004, methodology): “For completeness, we briefly review the key arguments in Poggi et al. (2004a).”
• Shear instability and coherent structures in shallow flow adjacent to a porous layer (2007, unknown): “…case, penetration into the obstructed layer is set by a length scale associated with the resistance, in this case (CDa) −1, where the canopy density, a, is the area of solid obstructions projected to the flow per volume, and CD is the mean drag coefficient (Nepf et al. 2007; Poggi et al. 2004a, b).”