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OVERVIEW
Observations >
COMPEX 2026
HALO-(AC)³ 2022
MOSAiC 2019/2020
AFLUX 2019
PAMARCMiP 2018
ACLOUD 2017
Modelling
Crosscutting Activities >
CCA1 - Convection
CCA2 - Surface Parametrizations
CCA3 - Arctic mixed-phase clouds
CCA4 - Air mass transport and transformation
PROJECTS
Cluster A
Fluxes in the Arctic Boundary Layer
A01
Aerosol, clouds, and radiation characteristics from observations and Big Data analysis
A02
Balloon-borne observations and dedicated simulations of the transitions between typical states of the Arctic atmospheric boundary layer
A03
Impact of low-level clouds and surface conditions on Arctic atmospheric boundary layer turbulence and radiation
A04
Effective representation of surface-atmosphere fluxes above heterogeneous sea-ice cover for use in climate models
Cluster B
Clouds Aerosol and Water Vapour
B01
Changes of the top–of–atmosphere reflectance, brightness temperatures, and cloud properties in the Arctic from 1995 to the present derived from satellite data
B02
Remote sensing of aerosols and their properties in the Arctic from satellite observations
B03
Transformation of Arctic mixed–phase clouds in cold air outbreaks characterized by airborne and satellite remote sensing
B04
Spatial distribution, sources, and cloud processing of aerosol particles
B05
Variability and trends of water vapor in the Arctic
B06
Latitudinal variability of water vapour, aerosols, and optically thin clouds
B07
Influence of sea ice leads or polynyas on Arctic cloud properties
B08
Characterising the spatial variability of ice water content in and below mixed-phase clouds
Cluster C
Ocean Atmosphere and Sea Ice Interactions
C01
Effects of heterogeneous sea ice properties on radiative energy fluxes and its influence on Arctic amplification
C02
Interactions of snow on sea ice with atmospheric constituents including black carbon
C03
Atmospheric composition and ocean colour feedback to Arctic amplification
C04
Coupling between atmosphere, mixed layer and pycnocline under Arctic amplification: The role of sea ice related processes
Cluster D
Atmospheric Circulation and Transport
D01
Large-scale dynamical mechanisms of Arctic-midlatitude linkages
D02
Trends, patterns, and climate effects of aerosol in the Arctic
D03
Interactions between atmosphere and sea ice-ocean in the Arctic
D04
Interaction of meridional ocean heat transports and regional processes in the Arctic Ocean
D06
Causal pathways of Arctic-midlatitude interactions
Cluster E
Integration and Synthesis
E01
The role of atmospheric convection in Arctic feedbacks
E02
Ny-Ålesund column thermodynamic structure, clouds, aerosols, trace gases and radiative effects
E03
Process-level assessments of Arctic mixed-phase clouds
E04
Moisture intrusions: Processes and climatological impacts
E05
Process-level Understanding of Sublimation and Evaporation of Precipitation
E06
Diagnosing moisture sources, transport and transformation with water vapor isotopes from satellites and in atmospheric modeling
Cluster Z
Z01
Central services, administration and coordination
Z02/IRTG
Integrated Research Training Group
Z03/INF
Data management
Z04
Modelling infrastructure
COMMITTEES
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Mercator Fellows
MEETINGS
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PHD
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IRTG Events
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DATA
Archives for 2026
Fr 02 Oktober 2026
JAMC27 - Call for Abstracts is open
Di 15 September 2026
(AC)³
General Assembly in Bremen
Mo 23 Februar 2026
4th
(AC)³
Science Conference on Arctic Amplification in Cologne
Participating institutes
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