Running means are very popular to smooth noisy time series. Unfortunately, they have unpleasant side effects. Here is a MATLAB example to demonstrate the effect of running means.
Create Publishable Graphics with MATLAB, Part 1
The graphics of MATLAB have been greatly improved since the very rustic plots of the early 1990s. In contrast to previous editions, in which all the graphics were edited by designer Elisabeth Sillmann (blaetterwaldDesign) with Adobe Illustrator, the majority of the graphics of the 4th edition of MRES were not processed after being exporting from MATLAB. Here is the script for creating a variant of Figure 4.9 from MRES.
Continue reading “Create Publishable Graphics with MATLAB, Part 1”
Cross Recurrence Plot Toolbox
Here is another great MATLAB-based website, the one about recurrence plots by my colleague and long-term collaborator Norbert Marwan from Potsdam Institute for Climate Impact Research (PIK). Recurrence plots for the analysis of complex systems are popular in many fields such as climate science, flow mechanics and medicine. Continue reading “Cross Recurrence Plot Toolbox”
Counting Flamingos with MATLAB
Here is a nice application of the script from MRES to count sand grains in microscope images. In September 2013 a biologist from the National Museums of Kenya joint us on an expedition to the Suguta Valley in the Northern Kenya Rift. At that time hundreds of thousands of lesser flamingos left the Central Kenia Rift, especially from the Nakuru basin, and went to the Suguta Valley. The biologist started to count the flamingos, while I immediately thought about doing this automatically with a little MATLAB script.
About me
Here is a short outline of my research and teaching at the U Potsdam, Germany, and elsewhere, with emphasis on the use of MATLAB in earth sciences.
The MATLAB® / LEGO® MINDSTORMS® Model of a Moving Satellite
This was one of my first MATLAB® / LEGO® MINDSTORMS® projects: the model of a moving satellite. Three exercises have been developed from this, which I will shortly provide in the member area with solutions.
Continue reading “The MATLAB® / LEGO® MINDSTORMS® Model of a Moving Satellite”
Probabilistic Age Modeling for Complex Stratigraphic Sequences
In an article published in Quaternary Geochronology (Trauth, 2014), I introduced a new method for modeling complex stratigraphic sequences. I would like to explain at this point what the result of the modeling is, and what it is not.
Continue reading “Probabilistic Age Modeling for Complex Stratigraphic Sequences”