Fields of interests

  • inter-model spread in hydrological sensitivity among CMIP5 models
  • physical constraints on regional precipitation changes
  • coupling between precipitation, circulation and surface fluxes
  • climate and climate change in radiative-convective equilibrium

PhD thesis

My PhD thesis centers around better understanding how precipitation will change due to climate change. How precipitation increases with surface warming is described by the measure "Hydrological Sensitivity".

I work with a large selection of state-of-the-art climate models, which range from very simplified models (no land, no rotation, uniform insolation) to complex Earth System models (dynamical ocean, atmosphere and land).

In my work I attempt to understand the processes underlying precipitation changes and to which degree these process cause inter-model spread of precipitation predictions. I investigate the constraints on precipitation changes on a global as well as regional perspective.

Master thesis

I worked on radiative-convective equilibrium (RCE) in my master thesis. The concept of RCE relies on the simple assumption that climate and climate change can be described by the balance of only two processes: radiative cooling and heating from convection.

In my thesis I have modified the atmospheric general circulation model ECHAM6 in such a way to simulate only radiative-convective equilibrium. In this configuration, the rotation is zero, there is no land and the sun radiates uniformly at all points of the planet. 

Regionally speaking, the climate appears much different from today's Earth (see cloud cover above: red/yellow for near total cloud cover, white: no clouds). Statistically, the mean values of atmospheric variables are a surprisingly good approximation of the model's tropical state.