Norbert Marwan

@pucicu.de

284 Followers 88 Following

cave researcher, scientist at PIK, nonlinear data analysis, underwater rugby player https://www.pik-potsdam.de/~marwan

Mehrere Stalagmiten, auf einem ein Metashape-Marker. Links ein Metashape-Marker-Board.
Building of conference centre with a banner showing "20 years in Vienna"
Cave chamber with a scientist taking photos from the ceiling and a LIDAR in front which is measuring 3D spatial data from this cave.
Line graph comparing computation time (in seconds, log scale) versus data length N (log scale) for five Recurrence Quantification Analysis (RQA) methods: RQA_RP, RQA_woRP, RQA_samp, RQA_samp², and RQA microstates. The graph shows that RQA_samp and RQA microstates consistently require the least computation time, while RQA_RP requires the most, with all methods increasing in time as data length grows.
Karst plane with two cavers looking out of a cave.
Blick in das Sägistal mit dem idyllischen See.
Histogram plot showing the sum of citations (of all papers) vs. the time of the citation (years after publication).
Screenshot of the webpage, showing the entrance page with a global map and some atmospheric rivers.
Cave passage with sodastraw speleothems and a cave researcher who is preparing a photo for scientific photogrammetric studies.
Info text on the seminar, showing time of talk and photograph of speaker
Collecting water samples in a cave in Sägistal (Bernese Oberland, CH).
Grafik mit dem Temperaturverlauf, zwischen 6 und 9 Uhr tiefste Werte um –35°C
Temperaturverlauf der letzten 24 Stunden, mit deutlichem Trend zu niedrigen Temperaturen (–20°C gerade unterschritten).
Temperature curve showing a minimum at 8:00 in the morning.
A page with 2 photos showing mountains.