Annica Ekman Professor of Meteorology

Contact

Name and title: Annica EkmanProfessor of Meteorology

Mail: annica.ekman@misu.su.se

Phone: +468162397

Workplace: Department of Meteorology Länk till annan webbplats.

Visiting address Room C 648Svante Arrhenius väg 16 C

Postal address Meteorologiska institutionen (MISU)106 91 Stockholm

Research groups

Circulation and connection land-sea-atmosphere

Over long timescales, the circulation systems co-evolve with ice sheets, mountain ranges, and redistributions of carbon between the atmosphere, ocean and land. The circulation and associated feedbacks influence exchanges of energy and materials between compartments of the climate system, and create teleconnections and natural climate variability.

Dynamic Meteorology

How and why the atmosphere moves is studied within dynamic meteorology. The atmosphere is never still and its movement can be described by partial differential equations which describe how changes in speed, density, pressure and temperature occur. We study these movements from the smallest scale of turbulence to planetary waves.

Polar Meteorology and Oceanography

The global warming is not uniformly distributed over the Earth. The polar regions are especially sensitive for climate change and the warming in the Arctic is more than twice as fast as for the Earth on average. The effects of this warming are large, with a dramatic loss of sea ice as an example.

Clouds, airborne particles and gases

A continued change in the atmospheric content of greenhouse gases and particles is estimated to result in future warming well above 1.5°C, compared with pre-industrial levels. It is uncertain how much heating is masked by the cooling effect of the particles, especially the effect of the particles on the distribution and properties of the clouds.

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Short CV

About me

I work as a professor in Meteorology at the Department of Meteorology, Stockholm University. My main research interests are clouds and aerosol particles and the various ways they interact and influence weather, circulation, and climate. Most of my publications are found here.

Publications

Research projects

CRiceS

CRiceS - Climate Relevant interactions and feedbacks: the key role of sea ice and Snow in the polar and global climate system

iMIRACLI - Understanding Arctic clouds: how do aerosols control their properties

The project is part of the EU funded Marie Skłodowska-Curie Innovative Training Network (ITN) named iMIRACLI (innovative MachIne leaRning to constrain Aerosol-cloud CLimate Impacts) and examines how aerosols affect the Arctic mixed-phase clouds.

Feedbacks between a changing climate and vegetation (CLIVE)

Feedbacks between a changing climate and vegetation (CLIVE): The role of volatile organic compounds and biogenic aerosols. CLIVE aims to explore how forests, particularly in boreal and tropical regions, influence climate change through their interactions with carbon and water cycles.

MOCCHA – ARCTIC OCEAN 2018 The Role of Marine Biopolymers in Cloud Formation in the High Arctic

MOCCHA (Microbiology-Ocean-Cloud-Coupling – in the High Arctic) – ARCTIC OCEAN 2018 was an international and interdisciplinary research expedition to the central Arctic Ocean during the summer of 2018.

AC3S: Aerosols, Convection, Clouds, and Climate Sensitivity

Interactions between aerosol particles and tropical convective clouds are a major source of uncertainty in the scientific understanding of climate change. AC3S will use new observational data and numerical models to address this challenge.

Feedbacks between sea ice, ocean, clouds, and aerosols in changing polar climates (ACCELERATE)

Can polar clouds dampen global warming? The current consensus states that clouds enhance surface warming in polar regions but that their impact on the net energy budget at the top of the atmosphere, and thus global climate, is either small or cooling.

Clouds and climate transitioning to post-fossil aerosol regime: CleanCloud

Aerosol-cloud interactions (ACI) remain the largest source of uncertainty in past, present, and future radiative forcing, impeding credible climate projections.

FORCeS

FORCeS - Constrained aerosol forcing for improved climate projections

Arctic Climate Across Scales

The polar regions are especially sensitive for climate change and the warming the Arctic is more than twice as fast as elsewhere on Earth. The effects of this warming are large, with a dramatic loss of sea ice as an example.

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