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C6 C7

 

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D6 D7 D8

 

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Z4 MGK

Project C7


Sparse pattern representation with application to pattern parameterization in atmosphere and land surface coupled systems

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Research Area:
Atmospheric Sciences, Mathematics


project c7

We will develop a common theoretical fundament for the unified description of patterns and pattern interactions. This shall be achieved by the development and application of multivariate, vector-valued, location- and possibly time-dependent statistical models with as few parameters as possible, namely sparse representations. Sparse representations are data- and/or model adapted mathematical representations in appropriate bases formulated and encoded with a minimal degrees of freedom. The most important quantities for describing the atmosphere and land-surface exchange patterns are sensible heat, latent heat and CO2 fluxes, which will be obtained from model simulations and observations. These data will be analyzed with the help of wavelet and curvelet decompositions and, in particular, with empirical mode decompositions (EMDs) for describing patterns. EMDs are specifically adapted to and constructed for the targeted data and computed with numerical tools such as optimizations based on interpolating local extremes by piecewise polynomials. Pattern interactions shall be described by identifying mappings between patterns in their sparse representations. Based on the outcome of these analyses, we will propose methods for the incorporation of pattern interactions in integrated models like TerrSysMP to improve simulations and predictions.

The developed theory and techniques will be applied to pattern and pattern-interaction analysis using the large-eddy simulations performed in D6, as well as to the ground-based remote sensing observations from the TR32 and possibly to satellite data.


Cooperation partner:

C1, C3, C4, D6, D7

6 Member(s):

Angela Kunoth

Prof. Dr.
Angela Kunoth
Principal Investigator
in C7

University of Cologne
Mathematical Institute

Weyertal 86-90
50931 Cologne
Germany

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+49 (0)221 470 6080
+49 (0)221 470 6076
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kunoth@math.uni-koeln.de

 

 

Yaping Shao

Prof. Dr.
Yaping Shao
Principal Investigator
in C7, D6, Z4

University of Cologne
Institute for
Geophysics and Meteorology

Pohligstr. 3
50969 Cologne
Germany

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+49 (0) 221 470 3688
+49 (0) 221 470 5161
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yshao@uni-koeln.de

 

 

Cedrick Ansorge

Dr. rer. nat.
Cedrick Ansorge
Scientist
in C7

University of Cologne
Institute for
Geophysics and Meteorology

Pohligstraße 3
50678 Cologne
Germany

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+49 221 470 3677

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cansorge@uni-koeln.de

 

 

Boqiang Huang

Dr.
Boqiang Huang
Scientist
in C7

University of Cologne
Mathematical Institute

Weyertal 86-90
50931 Colgne
Germany

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+49 (0)221 470 6077
+49 (0)221 470 4879
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huang@math.uni-koeln.de

 

 

Jose Licon

M.Sc.
Jose Licon
Ph.D. Student
in C7

University of Cologne
Mathematical Institute


Germany

Stefanie Neske

Stefanie Neske
Ph.D. Student
in C7, D6

University of Cologne
Institute for Geophysics and Meteorology


Germany

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(0221) 470 3687

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sneske@uni-koeln.de

 

 


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