University of Bonn

My research work can be accessed in three ways. 1) A list with various scientific themes, with pdf-articles and often color examples and program codes (below are the main themes). 2) There is a chronological list of articles. 3) On my blog variable variability you can find more general or preliminary ideas.

Homogenisation of climate records

Understanding and benchmarking homogenisation algorithms.

Surrogate clouds

Surrogate cloud fields have certain (statistical) properties of real cloud fields. These can be measured properties or theoretical ones.

Adaptive parameterisations

Adaptive parameterisation schemes enable more physical parameterisations by splitting the computation in a more physical calculation and an adaptive (statistical) generalisation.

more/older research themes ...

Homogenisation e-mail list

An e-mail distribution list on homogenisation of climate data.

Cloud research e-mail list

An e-mail distribution list on cloud research and climate.

Adaptive parameterisations and Transregio 32

I am currently working on a DWD-project on adaptive parameterisations and in the Transregio 32 on structure and exchange processes between the ground, vegetation and atmosphere.

Surrogate clouds

My last DFG project on generating structured clouds to study 3D radiative transfer.

Community Homogenisation Journal

January 2017. I am working on a Community Homogenisation Journal as an example of how Grassroots Scientific Publishing could work. I hope that members of the homogenisation community will be interested in joining this experiment.

Global climate reference network

Janury 2017. A concept paper for a global land surface climate fiducial reference measurements network has just been accepted by the International Journal of Climatology. Email me for a copy.

Break detection

December 2017. A paper on the influence of break and noise variance on break detection has been submitted. A preprint can be found on EarthArXiv.

Break detection

November 2017. I am member of a GCOS Task Team to design a Global Climate Reference Network. Feedback welcome.

Sea Surface Temperature

December 2016. A review paper on uncertainties and inhomogeneities in SST is now published online by the Bulletin of the American Meterological Society.

Multi-objective downscaling

Juni 2016. The article on Downscaling near-surface atmospheric fields with multi-objective Genetic Programming by my PhD student Tanja Zerenner has just been accepted.