Erweiterung der `Localized Near Field' Theorie zur Bestimmung von Quellstärken bei beliebiger thermischer Schichtung in einem Waldbestand

The energy and mass budget of the atmosphere is mainly determined by the exchange at the earths surface. Here plant canopies play a major role. The 'Localized Near Field Theorie' (LNF) of Raupach (1989) describes the relation between concentration profiles and source/sink profiles inside the plant canopy. This work describes a general method based on the LNF to calculate source distributions from measured concentration profiles inside a plant canopy. The LNF is used for the first time to examine the effects of the so called roughness sublayer. To apply the LNF during arbitrary thermal stratification it is necessary to find parametrisations for the input parameters standard deviation of vertical velocity and Lagrangian integral time scale. These are derived from values measured inside a pine forest. Using these parametrisations the distribution of heat sources inside the forest canopy is calculated from measured temperature profiles.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Ludwig-Maximilians-Universität

Year

2003

Author dc:creator

• Schween, Jan H.

Repository record source_url

https://edoc.ub.uni-muenchen.de/970/

OAI identifier oai:identifier

oai:edoc.ub.uni-muenchen.de:970