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DFG Transregio 32

Patterns in Soil-Vegetation-Atmosphere-Systems -
Monitoring, Modelling and Data Assimilation

D2 – Experimental study of spatio-temporal structures in atmosphere-land surface energy, water and CO2 exchange

The Transregional Collaborative Research Centre 32 (SFB/TR32) is an interdisciplinary research project between the Universities of Aachen, Bonn, Cologne and the Research Center Jülich comprising a broad range of natural scientific disciplines that deal with the soil-vegetation-atmosphere system (SVA).
The SVA exchange processes encompass the transfer of mass, energy and momentum, and are inseparably intertwined resulting in feedbacks and system responses that are difficult to quantify and predict. Despite of the heterogeneity and variability the natural system show spatio-temporal structures and patterns at various scales.

Transregio 32

The aim of the SFB/TR32 is to characterize these structures and patterns which will lead to a deeper qualitative and quantitative understanding of the SVA system and ultimately to better predictions of water-, energy, and CO2- transfer.
In this context, the project section D2, that is lead cooperatively by the IBG-2 and the meteorological institute of the University of Cologne, AG Prof S. Crewell, specifically focuses on the understanding of plant mediated exchange process by a detailed assessment of mechanisms that control plant atmosphere interactions. Therefore, long-term plant related observations using continuously running hyperspectral remote sensing instruments which will be enhanced by thermal, infrared spectroscopy and cloud radar measurements are needed. Additionally several airborne campaigns that use novel high resolution imaging spectrometers and will deliver spatio-temporal maps of the functional status of the vegetation are planned and conducted within this project. These non-invasive measurements techniques are exploited in combination with advanced modelling systems by data assimilation to yield improved numerical models for the prediction of water-, energy, and CO2- transfer by accounting for the patterns occurring at various scales.

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DFG Transregio 32



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