Climate Processes

Group Leader: 
Igor Ezau


About us

GC Rieber Climate Institute (Climate Processes Group): Physical climate knowledge to address societal challenges

Research Objectives

The group focus the efforts on theoretical, numerical, statistical and observational studies of diverse climate shaping processes over multitude of spatial and time scales. The key element of these studies is an upscaling approach. We look at local processes and effects as they occur or percieved at local scales and seek for robust connections with large-scale climate processes and fundamental climate physics. This approach naturally splits the research in the following lines:

  • High-resolution data: Technological solutions made a revolution in accessibility, diversity, density and, eventually, in the cost of environmental data. Significant mathematical and algorithmic advances are needed to develop: algorithmes to work with, to certify and to fuse new generation of high-resolution satellite data products, regular and citezens' observational networks, ground-born remote sensing instruments; methods to assimilate the high-resolution observations into climate models and statistical assessments.
  • High-resolution modeling: Improved access to computational resources (inc. destop computing) unlocked the door for user-oriented environmental projects. Local physical processes in interaction, inter-scale dynamics and PBL data assimilation require: much better understanding; simulation of the planetary boundary layer dynamics with the large-eddy simulation technique.
  • High-resolution user-oriented climate services: Post-modern environmentalism engages with society through “hot spots” focusing the public attention. Knowledge transfer is effective through resonant studies referring to the Traditional Environmental Knowledg. Studies of high-impact weather/climate phenomena require: high-resolution and visualizations; research on the links between the local and regional/global climate anomalies, uncertainty of the local climate projections, merging the modeling and observed climate statistics to detail the projects; co-design and co-development of market-oriented climate services with end-users.

At present, the group operates with: the Norwegian Earth System model and the Bergen Climate Model in cooperation with Bjerknes Centre for Climate Research; the large-eddy simulation model PALM in cooperation with the PALM Group; and the meteorological temperature profiler MTP-5HE.


The most recent publication.

The last group event.


Name Area of Expertise
Igor Ezau other scientific field
Lisbeth Iversen other scientific field
Richard Davy physics
Stephen Outten geophysics
Tobias Wolf-Grosse meteorology
Victoria Miles
remote sensing


Climate change will not reduce the wind energy potential over the Black Sea

15.06.2017 - 16:57 Lasse Pettersson
Nansen Center scientists in Bergen and St. Petersburg have jointly studied how European wind energy resources may change in the future, with a focus on the...

Doktordisputas: Temperaturinversjon og luftkvalitet i Bergen

09.12.2016 - 11:18 Lasse Pettersson
Klar vinterdag med inversjon over Bergen.Dr. Tobias Wolf-Grosse har disputert for PhD. graden ved Universitetet i Bergen med avhandlingen An Integrated...

Larch forest in West Siberia getting “greener”

10.11.2016 - 15:26 Lasse Pettersson
Nansen Center scientists Drs. Victoria Miles and Igor Esau have published the paper Spatial heterogeneity of greening and browning between and within...

Ny rapport om bidragene til luftforurensing fra skip i Bergen havn

16.08.2016 - 10:48 Lasse Pettersson
GC Rieber stipendiat Tobias Wolf presenterer resultatene fra studien for oppdragsgiver og andre framøtte på Nansensenteret.Nansensenteret har avsluttet en...

Prestigious publication in Nature Communications explain why some climate processes are more effective at warming the Earth

25.05.2016 - 12:00 Lasse Pettersson
Drs. Richard Davy and Igor Esau, NERSC.Nansen Centre Scientists Drs. Richard Day and Igor Esau publish the paper Differences in the efficacy of climate...

Derfor gir havbunnen svar på klimaspørsmål

21.04.2016 - 11:05 Lasse Pettersson
Nansensenter forsker Dr. Helen Langehaug har ledet en studie sammen med fem andre forskere tilknyttet Bjerknessenteret On the reconstruction of ocean...

Multi-hazard assessment in Europe under a future climate

14.04.2016 - 15:54 Lasse Pettersson
Nansen Center scientist Dr. Stephen Outten contributes to the paper Multi-hazard assessment in Europe under climate change recently accepted in Climate Change...