Climate Processes, Variability and Change

Develop coupled global ocean and atmosphere climate modelling. Studies of climate data and  models to advance the understanding of climate processes and variability, focusing on high-latitudes and global teleconnections.

Description & Objectives

Research Description

Develop coupled global ocean and atmosphere climate modelling, including the Norwegian Earth System Model (NorESM), the global Bergen Climate Model (BCM) and, Weather Research and Forecasting (WRF), and global to regional ocean general circulation models (MICOM and HYCOM). Improving model predictability of reanalysis through improved parameterization of boundary layer processes and assimilation of climate data records in the models.

Research on the northern hemisphere high latitude climate is of high priority, with focus on Arctic Sea ice concentration, extent, volume and deformation, mass reduction of the Greenland ice sheet, changes in regional ocean circulation and sea level.

The research contributes to the Bjerknes Centre for Climate Research (BCCR) – a Norwegian research centre of excellence (SFF) and the Centre for Climate Dynamics (SKD) in Bergen.

Specific Research Objectives

  • To advance planetary boundary layer research and modelling of air-sea-ice interactions, including their effect on fluxes of heat and CO2 and impact on the Arctic climate change.
  • To advance the understanding of the natural and anthropogenic climate variability on inter-annual to decadal time scales for the Arctic and sub-Arctic region, including the Nordic Seas.
  • To advance the insight into mechanisms causing teleconnections between the lower latitudes and the Arctic region.
  • To study changes of the mass balance of the Greenland Ice Sheet and outlet glaciers in relation to atmospheric and ocean variability and implement an ice-sheet module into the Norwegian Earths System Model (NorESM).
  • To improve the understanding of the global oceanic uptake and spreading of heat and CO2 by multiple tracers study.
  • To evaluate the predictability of the climate system on interannual to decadal time scales, by applying data assimilation to the Norwegian Earth System Model.

Staff

Name Area of Expertise
Achref Othmani oceanography
Antonio Bonaduce oceanography
Florian Geyer oceanography
François Counillon
data assimilation
oceanography
sea ice
Heather Christine Regan
oceanography
sea ice
Helene R. Langehaug oceanography
Kjetil Lygre geo-sciences
Lingling Suo meteorology
Noel Keenlyside meteorology
Richard Davy physics
Roshin P. Raj oceanography
Stein Sandven
acoustics
oceanography
remote sensing
sea ice
Stephen Outten geophysics
Yanchun He oceanography

Projects

BASIC

CoRea

EUREC4A-OA

  • Climate Dynamics and Prediction, Climate Processes

    Improving the representation of small-scale nonlinear ocean-atmosphere interactions in Climate Models by innovative joint observing and modelling approaches.

ARIA

  • Climate Dynamics and Prediction, Sea Ice Modelling

    Arctic cyclones can break up and reshape the Arctic sea-ice cover and can be expected to do so more readily as the ice grows thinner due to anthropogenic climate change. Processes driven by Arctic cyclones can enhance the rate of melting of the ice and increase its export out of the Arctic. We hypothesise that surface coupling (interactions between the ocean, sea ice and atmosphere) play a crucial role in determining the life cycle of Arctic cyclones, and the effect they have on the sea ice.

SERUS

  • More than 80% of the Arctic population is living in 110 cities. Open space converts a settlement to a location with sense-of-place and values. Green (vegetated) and blue (water) spaces, being the areas of public attraction, recreation and eco-services, make cities livable. We consider green, blue and white space along with built-up areas as components of an interconnected socio-environmental (urban) ecosystem.

     

KeyCLIM

  • Climate Dynamics and Prediction, Climate Processes

    The KeyCLIM project set out to better understand, calculate and reduce the uncertainty related to climate change in Northern Latitudes, especially in the Arctic. The project group has assembled new model scenarios and data documenting large and partly irreversible climate changes in the north for the next 50-300 years.

BCPU