- Numerical Linear Algebra
- Preconditioning
- Parallel computing
- Numerical bifurcation analysis
- Stochastic ocean-climate models
- Transitions between steady states
- Lyapunov equations

Software created by us:

- Our preconditioner HYMLS and implicit Earth system model of intermediate complexity I-EMIC: https://github.com/nlesc-smcm.
- Our Lyapunov solver RAILS: https://github.com/Sbte/RAILS.
- Our FVM package for bifurcation analysis on fluid dynamics problems: https://github.com/BIMAU/fvm.
- Our implementation of JDQR and JDQZ in Python: https://github.com/BIMAU/jadapy.

Climate, climate change, polar climate, hydrological cycle, links climate-carbon cycle, paleoclimate, polar scientific expeditions, (scientific) writing

Former chair: Ecophysiology of marine microalgae.
Key words: marine phytoplankton, marine carbon cycle, marine polar ecology, global change, harmful algal blooms, (micro)algal applications.

I am interested in all factors that control the growth and diversity of marine phytoplankton. In practice I was involved in projects that deal with climate change and (Ant)Arctic algal productivity and diversity, harmful algal blooms and algal applications. We executed experimental work in the lab, based on our extensive culture collection. Furthermore, we participated in field campaigns, for example to the open Atlantic, both polar regions, or Indonesia.

http://www.rug.nl/research/isotope-research/projects/carboncycle

My research focusses on the role of metals in marine ecosystems. Though often solely regarded as toxins, metals are required as nutrients for the growth of all organisms. Metals form the reactive centres of enzymes, enabling these to perform biochemical functions, such as oxygen-transport or photosynthesis. As such, trace metals are central to the health of individual organisms as well as entire ecosystems. On the other hand, elevated concentrations of metals can have detrimental effect to individual organisms as well as ecosystems and this double sided nature of metals is what inspires my research.

phytoplankton physiology, photobiology, ecology

marine phytoplankton, ecophysiology, biogeochemistry, climate gases, DMS, pigments, pelagic and sea ice habitats

organiseren en uitvoeren van veldwerk campagnes
ontwerpen en bouwen van veldwerk-  en onderzoeksapparatuur
HPLC-pigment analyse