DETERMINATION OF THE ZERO PLANE DISPLACEMENT IN AN URBAN-ENVIRONMENT

Authors
ROTACH MW
Citation
Mw. Rotach, DETERMINATION OF THE ZERO PLANE DISPLACEMENT IN AN URBAN-ENVIRONMENT, Boundary - layer meteorology, 67(1-2), 1994, pp. 187-193
Citations number
13
Categorie Soggetti
Metereology & Atmospheric Sciences
Journal title
Boundary - layer meteorology → ACNP
ISSN journal
00068314
Volume
67
Issue
1-2
Year of publication
1994
Pages
187 - 193
Database
ISI
SICI code
0006-8314(1994)67:1-2<187:DOTZPD>2.0.ZU;2-V
Abstract
A method to estimate the zero plane displacement is presented that is based on in situ turbulence measurements. As it does not depend on flu x-gradient relations, it can be applied over non-homogeneous surfaces if they are dynamically but not thermally distorted. The zero plane di splacement at an urban site is found to vary considerably with wind di rection. The results compare well with estimates from conventional met hods using the heights and distribution of the upwind roughness elemen ts.