Footprint analysis: A closed analytical solution based on height-dependentprofiles of wind speed and eddy viscosity

Citation
Hd. Haenel et L. Grunhage, Footprint analysis: A closed analytical solution based on height-dependentprofiles of wind speed and eddy viscosity, BOUND-LAY M, 93(3), 1999, pp. 395-409
Citations number
15
Categorie Soggetti
Earth Sciences
Journal title
BOUNDARY-LAYER METEOROLOGY
ISSN journal
00068314 → ACNP
Volume
93
Issue
3
Year of publication
1999
Pages
395 - 409
Database
ISI
SICI code
0006-8314(1999)93:3<395:FAACAS>2.0.ZU;2-T
Abstract
Based on the theoretical background of existing models for the crosswind-in tegrated footprint, a new model is presented, which, in contrast to the exi sting models, describes the normalized footprint by a closed analytical for mula. This was made possible by using well-known power profiles for wind sp eed and eddy viscosity instead of Monin-Obukhov based profiles at a certain stage of model development. However, the major difference between the new model and the existing models is that the so-called shape parameter of vert ical plume dispersion, a function of upwind distance in the existing models , is set constant in the new model in order to circumvent a formal inconsis tency found in the derivation of the existing models. Due to this inconsist ency, the existing models do not generally satisfy the fundamental conditio n that the cumulative normalized footprint must approach unity for the upwi nd distance tending towards infinity.