Working group DeepSea Monitoring

...a multidisciplinary group

Our group consists of natural scientists (from the fields of geology, geochemistry, geophysics, oceanography, environmental sciences), software engineers and data scientists (from computer science and statistics, people who use e.g. signal processing, photogrammetry or machine learning to extract knowledge from data) and technicians (in geochemical laboratory analysis, electronics and precision engineering) and thus covers a wide field with regard to technology development, generation and evaluation of data to answer our scientific questions.

Please also visit our site Staff and our Studentjobs & BA/MA-thesis topics in underwater computer vision and acoustics.

Our topics

The working group DeepSea Monitoring (DSM) addresses the following overarching issues:

in scientific research

  • Detection, quantification and monitoring of gas flows (methane) from the sea floor into the water column and further into the atmosphere
  • Quantitative assessment of resources on the seabed, e.g. by means of detailed habitat mapping
  • Identification and annotation of organisms on the seabed
  • Environmental monitoring before, during and after the delaboration of munitions in the sea

in application-oriented development research

  • The (further) development of modular sensor systems and platforms, integration of robotic applications and artificial intelligence
  • Development of optimal survey and sampling strategies
  • Visual and computer-supported data exploration, in particular by artificial intelligence methods such as machine learning (by means of pattern recognition, data mining, visualisation and unsupervised learning processes)
  • Development and experimentation with methods for refractive underwater camera calibration (see Oceanic Machine Vision Group)

Our methods

We use hydroacoustic (singlebeam and multibeam systems, sub-bottom profilers), electromagnetic (magnetometers) and optical (cameras, fluorometers, lasers) technologies in conjunction with post-processing and calibration techniques (filtering and statistical methods, photogrammetry, 4D reconstruction), and combine these methods with geochemical analyses of the sea surface, the water column (such as ICP-OES, GC-MS laboratory analyses) and the atmosphere (Picarro Analyzer).

At the same time, we are involved in the development of data science workflows for the storage and analysis (including visual exploration) of large amounts of multi-parameter data. Methods of pattern recognition and machine learning are applied to large image data sets, for example, with the help of a high-performance compute-cluster infrastructure.

We develop modular sensor systems like the BubbleBox, which uses automated video analysis to count and measure bubble sizes, and platforms like GasQuant-II which was designed to quantify gas flows. We use the GEOMAR large-scale equipment ROV and AUV for data generation and further develop adaptive and iterative navigation, e.g. for AUVs

We develop our own Software that you might want to explore.

Our projects

At present we have different working topics and are partners in several international Projects. Completed research projects in which the DeepSea Monitoring group was involved can be found here.

Our publications

Our publication list can be found here.

  • Prof. Dr. Jens Greinert
    DSM Group Leader

    Room: 8A-103
    Phone: +49 431 600-2590
    E-Mail: jgreinert(at)

    Dr. Inken-M. Preuss
    Research Coordination/Assistance

    Raum: 8A-104
    Telefon: +49 431 600-2507
    E-mail: ipreuss(at)

    Astrid Ulbrich
    Group Assistance

    Room: 8A-104
    Phone: +49 431 600-2507
    E-mail: aulbrich(at)