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Methods and limitations in validation of footprint models

Title data

Foken, Thomas ; Leclerc, Monique Y.:
Methods and limitations in validation of footprint models.
In: Agricultural and Forest Meteorology. Vol. 127 (2004) Issue 3-4 . - pp. 223-234.
ISSN 0168-1923
DOI: https://doi.org/10.1016/j.agrformet.2004.07.015

Abstract in another language

This paper assesses the progress made over the last decade in validating foot-print models, and highlights shortcomings which need addressing. This paper also presents alternative methods of validating footprint models. The vigorous expansion of footprint models was spurred by the development and subsequent widespread application of primarily analytical solutions to the advection-diffusion equation and Lagrangian simulations. In this paper, we draw attention to the range of experimental conditions supporting both a judicious use and application of these methods. We discuss present limitations restricting foot-print model applicability, mostly for sites which depart from ideal conditions and model conditions which deviate from their original assumptions. Intercom-parisons of footprint models reveal differences amongst the different footprint models, prompting subsequent recent validations of footprint models. Despite the few existing studies, the issue of validation remains an outstanding problem in micrometeorology. In this paper, three concepts are discussed and compared: 1. The use of artificial tracer gases. 2. The use of natural sources of scalars. 3. The presence of obstacles in the flowfield and their influence on the footprints. Finally, the conditions of applicability of each method are discussed.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER20845
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professor Micrometeorology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 11 Sep 2015 06:34
Last Modified: 11 Sep 2015 06:34
URI: https://eref.uni-bayreuth.de/id/eprint/19228