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Monday (Nov 22)

09:00 – 09:30 Welcome words by Markku Kulmala ACCC: Air quality, climate and COVID 19
Session 1: Ecosystem processes (chair: Arnaud Praplan)
09:30 – 10:15 Morning plenary by Albert Porcar-Castell
10:15 – 11:30 Short scientific talks:

Ditte Taiple: Impact of biotic and environmental stress and perturbation of scots pine on new particle formation – a modelling study.

Tea Thum: Modelling sun-induced chlorophyll fluorescence at evergreen coniferous forest.

Henri Siljanen: Methane dynamics in boreal forest phyllosphere.

Maija Marushchak: Permafrost N release leading to high N2O emissions in Yedoma permafrost.

Chao Zhang: A practical guide for field and long-term PAM fluorescence measurements: setup, implementation and data processing.

Lukas Kohl: Aerobic methane production in Scots pine shoots.

Vilma Kangasaho: Investigating the role of emission sources and atmospheric sink to the seasonal cycle of CH4 and  δ13 -CH4 by using atmospheric transport model.

11:30 – 12:30 Lunch break
Session 2: Trace gases, aerosol and clouds (chairs: Federico Bianchi and Mari Pihlatie)
12:30 – 13:15 Afternoon plenary by Annele Virtanen
13:15 – 14:30 Short scientific talks:

Juha Sulo: Condensation sink explains most of the long-term increase in ambient cluster ion concentrations in the boreal forest.

Giancarlo Ciarelli: High-resolution applications of the WRF-CHIMERE atmospheric chemical transport model.

Outi Meinander: Saharan dust transport and deposition in Finland on 23 February 2021.

Xu-Cheng He: Role of iodine oxoacids in new particle formation.

Jonathan Duplissy: Viruses and their potential for acting as ice nuclei.

Iida Pullinen: The effect of cloud processing on secondary organic aerosol composition.

Ilona Ylivinkka: Analysis of the effects of cloud types on aerosol-cloud-radiation interactions at SMEAR II.

14:30 – 15:30 Coffee + online poster session
15:30 – 16:30 Short scientific talks:

Heidi Hellen: Strong sesquiterpene and oxygenated sesquiterpene emissions from a Downy birch.

Wei Huang: Chemical composition of ambient clusters contributing to the nighttime clustering events in a wetland, Southern Finland.

Huan Yang: Collision-sticking kinetics for molecular clusters with resolved intermolecular potentials and their effects on acid-base induced new particle formation.

Arnaud Praplan: Spruce volatile reactive emissions: a study.

Nanna Myllys: From heterodimer stability to particle formation rates.

Olli Pakarinen: The role of latent heat in heterogeneous ice nucleation.

16:30 – 17:00 Mini-Plenary I by Pauliina Schiestl-Aalto
Mini-Plenary II Towards diversity-friendly
work community by Timo Vesala & Xuefei Li
19:00 – 23:00 Conference dinner

Tuesday (Nov 23)

09:00 – 09:15 General remarks
Session 3: Air quality and anthropogenic emissions (chair:Angela Buchholz)
09:15 – 10:00 Morning Plenary by Topi Rönkkö
10:00 – 11:30 Short scientific talks:

Laura Salo: Variation in the size of lung-depositing particles between two cities.

Tom Kokkonen: Drivers of the spatial variation of air quality in Nanjing, China.

Ulla Makkonen: Biomass burning is a major source of PM2.5 mass concentrations in Hanoi.

Teemu Lepistö: Size-segregated exposure of lung deposited surface area (LDSA) near traffic and in a harbour – important role of ambient black carbon.

Luis Barreira: Inter-annual variations of submicron particulate matter at a street canyon site in Helsinki.

Pauli  Simonen: Ship emission measurements in SCIPPER project.

Heino Kuuluvainen: Trimodal size distributions of nonvolatile ultrafine particles in non-road diesel engine exhaust.

Michael Boy: A modelling study of OH, NO3 and H2SO4 in 2007-2018 at SMEAR II, Finland: analysis of long-term trends.

Anu-Maija Sundström: Emission signatures of single ships in satellite NO2 observations.

11:30 – 12:30 Lunch break
Session 4: Climate and meteorology (chairs: Heino Kuuluvainen and Panu Karjalainen)
12:30 – 13:15 Afternoon plenary by Hannakaisa Lindqvist
13:15 – 13:40 Short scientific talks:

Eemeli Holopainen: Radiative effects of plant damage induced secondary organic aerosol.

Lauri Tuppi: Algorithmic optimization of large parameter set in OpenIFS.

13:40 – 14:30 Coffee break + online poster session
14:30 – 15:20 Short scientific talks:

Anton Rusanen: SMEARcore goes global.

Terhi Rasilo: eLTER sites and platforms forum – integrating sites to the research infrastructure development.

Antti Laitinen: High-accuracy measurements of greenhouse gases at the Pallas measurement site and the mobile lab audit.

Laura Riuttanen: Competencies in atmospheric sciences education.

Mikko Äijälä: Teaching system thinking in climate & sustainability education.

15:20 – 16:00 Mini-Plenary III by Anna Lintunen & Hanna Lappalainen
16:00 Closing remarks

Program description

Conference venue

Room PI (245) at Porthania (City center campus), Yliopistonkatu 3, Helsinki

Talks duration

Plenary: 30 + 15 mins

Mini-plenary: 22 + 8 mins

Short talks: 7+3 mins

Poster Sessions:

During the poster sessions, participants have time to view and comment on posters online (Moodle) or go and discuss in-person. All participants are encouraged to comment, ask questions and add suggestions to the posters. Please note that the posters will be available on Moodle till one week after the conference and participants are encouraged to continue the discussion up to that point. 

Lunch breaks, coffee breaks

Lunch is not provided.

Coffee breaks are organized near the conference venue. Coffee is also available before the first session of the day.

Conference dinner

The conference dinner will take place on Nov 22 (Monday) in Sipuli, Kanavaranta 7, Helsinki.