Quantitative knowledge about biosphere-atmosphere exchanges is essential to predict the evolution of the planet’s ecosystems, weather and climate. The accuracy of all turbulent flow models depends on the quality of their closure parameterisations, and thus the underlying turbulence measurements. Measurements from all over the world show that the sum of turbulent energy fluxes between the biosphere and the atmosphere generally underestimate the non-convective terms by 10-30%. This surface energy balance closure problem is recognized as one of the most important enigmas of micrometeorology, considerably limiting progress in atmospheric and climate sciences. A major reason for this underestimation lies in the fact that some scales of atmospheric motion cannot be captured by common eddy-covariance tower measurements. The missing flux is caused by large-scale atmospheric motion which develops under convective conditions. To sample large-scale atmospheric motion adequately, analysis of spatially-distributed measurements is required. The results of airborne and multi-tower measurements are presented and an outlook on future and ongoing research is provided.

Diese Veranstaltung ist Teil der Reihe Karlsruher Meteorologisches Kolloquium

Referent/in
Dr. Matthias Mauder

KIT Campus Garmisch-Partenkirchen
Institut für Meteorologie und Klimaforschung (IMK-IFU)

Veranstalter
Institut für Meteorologie und Klimaforschung
Karlsruher Institut für Technologie (KIT)
Hermann von Helmholtz Platz 1
76344 Eggenstein-Leopoldshafen
Tel: 0721-608-0
E-Mail: sekretariat ∂does-not-exist.imk-asf kit edu

Zielgruppe
Wissenschaftliche Mitarbeitende