@martinhtrauth.bsky.social
Geoscientist | professor of paleoclimate dynamics at U Potsdam | MATLAB user since 1992 | author of six MATLAB- and Python-based textbooks on data analysis in earth and environmental sciences | views my own. http://mres.uni-potsdam.de
Am 26. September 2025 ist wieder Kinder-Universität an der Universität Potsdam. Ich bin wieder mit zwei Vorlesungen dabei, "Knochenjob in Ostafrika–Unterwegs auf den Spuren der ersten Menschen" und "Was war los im nördlichen Afrika, bevor es Pyramiden gab?".
www.uni-potsdam.de/de/medieninf...
Today marks the start of the 60th compact course based on my textbooks #MATLAB Recipes for Earth Sciences, 6th Edition (Springer 2025) and #Python Recipes for Earth Sciences, 2nd Edition (Springer 2024). I am looking forward to this new round of teaching online!
mres.uni-potsdam.de/2024/10/23/o...
Artificial neural networks (ANNs) have been used for quite some time to identify, for example, flowers in easy-to-use apps on smartphones. Here's an #ANN with backpropagation in 6 steps, now with both #MATLAB and #Python code:
mres.uni-potsdam.de/2025/09/08/a...
Multispectral imaging of a Permian druse showing eight different wavelengths in the range of 450 nm and 850 nm in pseudocolor plots.
Agate druse, basalt, "melaphyr", 290 million years, Permian, Waldhambach, Germany, shot with a Nikon Z fc with a Nikkor Z MC 50 mm 1:2.8, auto focus. Width of the druse is about 10 cm.
Multispectal imaging captures images across multiple spectral bands. Here is a #MATLAB example using #MAPIR cameras where eight different spectral bands in visible light and near infrared show differences in a rock sample that are invisible to the human eye.
tinyurl.com/bd9by86r
#geoscience
Thanks to the ongoing support of MathWorks Inc. through their Curriculum Development Program, I was able to purchase two more spectral cameras. Here is an example of how to import and process the images of an agate druse sampled from a Permian basalt in #MATLAB:
tinyurl.com/54umubv4
#geoscience
Due to two cancellations, we have reopened the registration portal for you! As always, it's about 15-20 people online, lectures and live coding sessions, prerecorded on the course website and you can work on exercises and an individual project to get up to six credit points!
shorturl.at/VzWLn
More than 30 years ago, I began teaching courses on data analysis in the earth sciences. 20 years ago, I started thinking about writing textbooks. Now there are six textbooks and many different course formats for you. Here are the options for you:
mres.uni-potsdam.de/index.php/20... #geosciences
KIND workshop last week in Potsdam (Germany): 65 scientists from all over the world gathered in Potsdam discussing ideas for scientific drilling of Lake Kinneret to address question of paleoclimate variability and its link to human evolution ℹ️ www.icdp-online.org/projects/by-...
14.07.2025 07:37 — 👍 3 🔁 3 💬 0 📌 0
As part of upcoming ICDP KIND workshop this weekend on Lake Kinneret Drilling, I will give a presentation on climate time series analysis, methods, and applications. I have compiled a list of courses, books, and papers by us during the last decade:
mres.uni-potsdam.de/2025/07/09/r...
Yesterday, I had a visit from an 11th grade class from a high school. I gave a talk on the climate tipping point 5,000 years ago and ancient Egypt, and had the students solve some problems using AI. It was alarming to hear that AI is not a topic covered in class. #geoscience
09.07.2025 07:32 — 👍 2 🔁 0 💬 0 📌 0
The potassium record of Chew Bahir of the last 20.000 years from a sediment core, showing the African Humid Period between 15.000 and 5500 years ago, interrupted by a dry episode during the Younger Dryas Stadial.
Photo of the dried out Chew Bahir lake in southern Ethiopia.
Screenshot of the paper Foerster et al., Palaeo3 2018.
Screenshot of the paper by Trauth et al., Nature Communications 2024.
Potassium is a proxy for aridity in Chew Bahir, Ethiopia, due to the increasing illitization of smectites in a gradually drying lake. V Förster and colleagues have investigated this in detail—and last year we showed that this was even the case 379 kyr ago, as found at a core at 200 m. #geoscience
09.07.2025 07:26 — 👍 3 🔁 1 💬 0 📌 0
If you are looking for an international #Master's program in #Geosciences without tuition fees, with many courses in modern data analysis, remote sensing and geo information systems, the @unipotsdam is the right place for you!
www.uni-potsdam.de/en/geo/study...
Registration deadline: 1 August 2025 👍
01.07.2025 06:32 — 👍 1 🔁 0 💬 0 📌 0
We still have a few spots left for our online short course on my books, now of course also featuring AI applications. See you in September!
mres.uni-potsdam.de/2025/04/29/6...
Bis zum 15. Juli 2025 können sich Studieninteressierte online für einen zulassungsbeschränkten grundständigen Studiengang ab dem WiSe 2025/2026 bewerben – sowohl im ersten als auch in höheren Fachsemestern. Zum Bewerbungsportal und weitere Infos: www.uni-potsdam.de/de/medieninf...
16.06.2025 09:57 — 👍 0 🔁 1 💬 0 📌 0
Typical photograph of undisturbed seabed at the control site with polymetallic nodules, from Jones et al., Nature, 642,112-118, 2025.
Area of track with complete removal of nodules by deep-sea mining in the centre and deeper propulsion tracks either side, from Jones et al., Nature, 642,112-118, 2025.
Very interesting open access article about the "Long-term impact and biological recovery in a deep-sea mining track" by D.O.B. Jones and colleagues. Their photos of the ocean floor after mining, before and after, are simply shocking. #geoscience
www.nature.com/articles/s41...
Im #PrideMonth weht an allen drei Campusstandorten der Uni Potsdam – Am Neuen Palais, Griebnitzsee und Golm – die Regenbogenflagge! Ein weiterer Schritt hin zur strukturellen Sichtbarkeit queerer* Lebensrealitäten. Mehr Infos unter: www.uni-potsdam.de/de/medieninf...
11.06.2025 15:09 — 👍 4 🔁 1 💬 1 📌 1Interesting, a complicated signal, thanks for explaining 😉
10.06.2025 08:20 — 👍 0 🔁 0 💬 0 📌 0Really? Which interpolation method are you using then?
Actually, I would have expected you to simply bandstop out the 12.4-hour period or to FFT the data, remove the 12.4 spectral peak, and then iFFT it? I did this with periodic noise in microscopic images:
mres.uni-potsdam.de/2023/05/03/r...
In #geosciences, time series are usually not evenly spaced – but most methods for analyzing these time series require this property. Here is an introduction to the art of #interpolation, including potential pitfalls and how to overcome them with MATLAB + Python:
mres.uni-potsdam.de/2023/06/27/i...
Am kommenden Freitag lädt Euch die Universität Potsdam zum Hochschulinformationstag (HIT) am Campus Griebnitzsee ein. Die Studiengänge der #Geowissenschaften stellt mein Kollege Dr. Julien Guillemoteau vor, der anschliessend Eure Fragen beantwortet.
www.uni-potsdam.de/de/studium/z...
#geoscience
Am kommenden Freitag lädt Euch die Universität Potsdam zum Hochschulinformationstag (HIT) am Campus Griebnitzsee ein. Die Studiengänge der #Geowissenschaften stellt mein Kollege Dr. Julien Guillemoteau vor, der anschliessend Eure Fragen beantwortet.
www.uni-potsdam.de/de/studium/z...
#geoscience
Oh, sehr hübsch, ein Hausrotschwanz, ich hatte ihn jüngst auf meiner Dachterrasse zum Bade 😉
bsky.app/profile/mart...
Ever since the introduction of electronic devices with touch controls, interactive 3D objects have become increasingly popular. Here's a MATLAB and a Python script to create/export animated digital terrain models:
mres.uni-potsdam.de/2025/06/04/c...
mres.uni-potsdam.de/2025/06/04/c...
#geoscience
Das Bild zeigt von links nach rechts: den Ministerpräsidenten des Landes Brandenburg, Dr. Dietmar Woidke, den HPI-Gründer Hasso Plattner, die Ministerin für Wissenschaft Forschung und Kultur des Landes Brandenburg, Dr. Manja Schüle, und den Präsidenten der Universität Potsdam, Prof. Oliver Günther, Ph.D. Das Foto machte Kevin Ryl.
Das Bild zeigt HPI-Gründer Hasso Plattner (links) und den Präsidenten der Universität Potsdam Prof. Oliver Günther, Ph.D. (rechts) mit einem Entwurf des neuen Uni-Campus auf dem Brauhausberg. Das Foto machte Kevin Ryl.
Das Land Brandenburg, die Uni Potsdam und die @plattnerfoundation.org haben heute einen #LetterOfIntent unterzeichnet. Die Uni bekommt einen weiteren Campus auf dem Gelände des ehemaligen Landtags am #Brauhausberg. Das @hpi.bsky.social in #Griebnitzsee wird erheblich erweitert. #WissenSchafftZukunft
02.06.2025 17:07 — 👍 16 🔁 7 💬 0 📌 1
Registration for the 60th online course on #MATLAB and #Python Recipes for Earth Sciences, 19–25 September 2025, is now open! For more information about this course, which I teach since 30+ years, please visit the website
mres.uni-potsdam.de/2025/04/29/6...
See you online in September 👍
Compositional data often show dilution effects, which can be corrected by using (log-) ratios. Unfortunately, the desired goal and the method used often do not match in paleoclimate studies. Here's a series of simulations to illustrate it. #aitchison #geoscience
mres.uni-potsdam.de/2025/05/29/m...
That sounds good, but I'm too old for GitHub – I've tried it again and again! Last year I wrote a paper, with data and MATLAB code available on Zenodo, which reproduces the figures in the paper exactly as published. Maybe I should give it a try.
www.nature.com/articles/s41...
Interested in exploring different mathematical tools, including #recurrence_plot analysis and tensor-based methods, to uncover patterns in multiscale or incomplete data? Here is your opportunity (@maastrichtu.bsky.social)
vacancies.maastrichtuniversity.nl/job/Maastric...
Screenshot from the building instructions for Lego's Cheops Pyramid.
Screenshot from the building instructions for Lego's Cheops Pyramid.
Screenshot from the building instructions for Lego's Cheops Pyramid.
Screenshot from the building instructions for Lego's Cheops Pyramid.
Incidentally, the same error also appears in the building instructions for Khufu's (Greek: Cheops) pyramid from Lego.
15.05.2025 12:48 — 👍 1 🔁 0 💬 0 📌 0
