The research group conducts atmospheric research, with special emphasis on understanding the processes and physical impacts of the climate system.
About the research group
The CICERO climate system group covers a broad range of topics within the atmospheric sciences. We are primarily a modelling group, studying radiative forcing of the climate system, and the role of gases, aerosols and clouds.
Research topics include the climate response across different time scales (rapid adjustments and slow response), climate sensitivity, drivers of precipitation changes under a warming climate, turbulence processes in the lower atmosphere, and extreme events. Furthermore, we focus on Arctic climate change, climate effects of forestry and forest changes, and long-range transport of short lived climate forcers (in particular black carbon). We also develop, evaluate and apply different metrics for comparing emission sectors and regions.
Our methods include both the use of observational data and modelling, ranging from global earth system models to fine-scale convection-resolving models. The chemistry transport model, OsloCTM, developed in collaboration with the University of Oslo and currently in its third major version, is an important research tool at CICERO.
Members of the group
Take climate-changing aerosols seriously
The dangerous impacts of aerosol changes on vulnerable regions should have been a priority at COP27 after climate policymakers agreed a breakthrough deal to support these parts of the world, scientists have claimed.
Atmospheric particles | Climate risk | Temperature changes | Extreme weather
The heat is here to stay
Europe is warming faster than the global average, and has seen a dramatic increase in the number of heatwaves over the past 40 years. This trend will likely continue, even with major reductions in greenhouse gas emissions.
Heat waves | Temperature changes
ARIDITY - The role of anthropogenic dust in the present and future climate system
Dust is the most abundant species of aerosol in the atmosphere. While mineral dust from deserts is the largest source, an important but less well-studied component is soil dust from sparsely vegetated surfaces. Commonly referred to as “anthropogenic dust”, arising from the influence of human activities on land surfaces and subsequent increase in wind erosion and dust emissions, this source is believed to contribute a substantial fraction to the total global dust load. However, the contribution and climate impact of anthropogenic dust, through interactions with radiation, clouds and precipitation, is poorly quantified.
Atmospheric particles | Climate Models | Air pollution | Precipitation changes
CATHY - Climate implications of rapid changes in Asian Anthropogenic Aerosol emissions
Emissions of Asian Anthropogenic Aerosols (A3) are rapidly changing - most notably black carbon and sulphate aerosol precursors from India and China. The resulting range of climate impacts and societal hazards may dominate regionally over greenhouse gas induced trends for the next several decades, but the implications are as yet insufficiently explored. CATHY (Climate implications of rapid changes in Asian Anthropogenic Aerosol emissions: Temperature, Hydrological cycle and variabilitY) tackles the urgent need for quantifying climate related hazards resulting from ongoing and projected changes in A3 emissions.
Climate impacts internationally | Temperature changes | Atmospheric particles | Precipitation changes | Air pollution | Climate Models | Extreme weather | Climate risk
MYRIAD-EU: Improving disaster risk management through multi-hazard and multi-sector risk assessment
The EU-project MYRIAD-EU aims to enable decision-makers to develop forward-looking disaster risk management pathways that takes into account trade-offs and synergies across sectors, hazards and scales.
Climate impacts internationally | Adaptation | Temperature changes | Precipitation changes | Climate risk | Heat waves | Flooding | Extreme weather