Martin H. Trauth, University of Potsdam, Germany
In spectrometry—for example, in remote sensing—Gaussian filters or, because they are believed to cause less distortion, Savatzky-Golay filters are often used to improve the signal-to-noise ratio of spectra. Read here to find out how to do it better.
Continue reading “Popular Filters in Spectrometry Revisited”
AI changed everything, also the way we search for literature, create figures, and write summaries. Teaching a course on collecting, processing and presenting geoscientific information and having published two editions of a book on the topic, it was time for a change. And two new books. Continue reading “Collecting, Processing, and Presenting in the Age of AI”
When I show my students that, contrary to expectations, the sine of pi in MATLAB or Python is not 0 but approximately 1.2246e-16, I usually see looks of astonishment on their faces. However, this result is not incorrect; rather, it follows the rules of floating-point arithmetic. Continue reading “Why is the Sine of Pi is Not Zero in MATLAB or Python?”
Can you still run the computer code you wrote back in the 1990s? How would you go about finding where you saved the code? On a 3.5-inch floppy disk—great! But now, you no longer have a drive to read the files on the disk. Continue reading “The Sustainability of Scientific Information”
After the final exam for a required bachelor’s-level course on book Collecting, Processing, and Presentation, a small group of students approached me with an intriguing request. They wanted to know if I would teach another course within the bachelor’s program. I was taken aback by their enthusiasm and asked, “Would you like another course, or would it be better not to?” Continue reading “Be a Better Writer and Presenter – The Launch of a New Course!”
On April 1, 2022, a satellite was launched as part of the German Environmental Mapping and Analysis Program (EnMAP) to collect hyperspectral data, which can be obtained free of charge. Here is a MATLAB script to import and display the data.
Continue reading “Importing, Processing and Displaying EnMAP Hyperspectral Images with MATLAB”
More than 30 years ago, I began teaching compact courses on data analysis in the earth sciences. 22 years ago, I started thinking about writing textbooks. Now there are six textbooks – the seventh book is in press – and many different course formats for you. Here is an overview of the current options! Continue reading “Online Courses in Modern Data Analysis Methods in Earth Sciences with Python and MATLAB”
For years, I’ve taught courses on academic writing and presenting, co-authored a book with designer Elisabeth Sillmann, and evaluated portfolios comprising abstracts, posters, and oral presentations. However, with the launch of ChatGPT in November 2022, I had to revamp my course because most of the teaching methods I used were now feasible for AI. And Elisabeth and I had to rewrite our book—which had since become two books, one for MATLAB and one for Python (Trauth and Sillmann, 2026a, b). Continue reading “Teaching and Examining Geosciences in the Age of AI”