Two‐dimensional transport of dust from an infinite line source at ground level: non‐zero roughness height

M. H A Hassan, I. A. Eltayeb

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The previous study (Eltayeb & Hassan 1992) of the 2‐D diffusion equation of dust over a rough ground surface, which acts as a dust source of variable strength, under the influence of horizontal wind and gravitational attraction, is here extended to all finite values of the roughness height Zo. An analytic expression is obtained for the concentration of dust for a general strength of the source. The result reduces to the previously known solutions as special cases. The expression for the concentration has been evaluated for some representative examples of the source strength g(X). It is found that the concentration decreases with roughness height at any fixed point above ground level.

Original languageEnglish
Pages (from-to)211-214
Number of pages4
JournalGeophysical Journal International
Volume115
Issue number1
DOIs
Publication statusPublished - 1993

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roughness
Dust
dust
Surface roughness
attraction
line source

Keywords

  • dust
  • particle transport

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

Cite this

Two‐dimensional transport of dust from an infinite line source at ground level : non‐zero roughness height. / Hassan, M. H A; Eltayeb, I. A.

In: Geophysical Journal International, Vol. 115, No. 1, 1993, p. 211-214.

Research output: Contribution to journalArticle

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