Transcript Formation and Growth of Atmospheric Aerosols

Testbed in Division of Atmospheric
Sciences point of view
Markku Kulmala
University of Helsinki
Department of Physical Sciences
Division of Atmospheric Sciences
•
•
•
•
ca. 70 scientists
7 professors
aerosol and environmental physics
micrometeorology and chemical
meteorology
• dynamic and physical meteorology
– e.g.
• mesometeorology
• radar meteorology
Centers of Excellency
APFE
Finnish
Academy of Finland
Nordic
Nordic,
BACCI, Aerosols NECC,Fluxes
ENoE
ACCENT
iLEAPS/
IGBP
NordForsk
Graduate School
CBACCI
EUCAARI, EUSAAR
CARBOEUROPE, NITROEUROPE
Approaches: how to answer our
research questions
•
experimental
– laboratory
– field (continuous and campaigns)
– development of novel instrumental techniques
• theoretical
– basic theories
– simulations
– model development
• From molecular to global scale
• Physics, Chemistry, Biology, Meteorology
– Inter- and multidisciplinary approaches
• Global networking and partnership
Research Chain
•
•
•
•
•
•
Molecular properties
Nucleation
Aerosol Dynamics
Boundary Layer Dynamics
Regional Scale
Global Scale
– COSMOS consortium
EUCAARI measurement network
Continuous Measurements
Observation of Nucleation Burst in Finland
Cloud Condensation
Nuclei
Aerosol particles
Cluster Ions
Kulmala et al., 2004, ACP
New CoE: Ambition
Future ideas
• MesoMet as part of Centre of Excellence
(European Centre of Atmospheric
Reserach)
• Needs to use Testbed for trace gas and
aerosol research
– Pollution episodes
– Atmospheric chemistry
– Aerosol dynamics
Visions 2025
• More environmental related measurements with
continuous datasets
– CO2 from 1958 (Mauna Loa)
– Aerosol size distributions from 1996 (Hyytiälä)
• Models with more exact chemistry and aerosol
dynamics
– pollution, health effects
– climate change
• However, a lot to study still left
– comparison met. studies started around 150-200
years ago
– environmental studies ca 20-50 years ago