My work

Head of Dispersion Modeling group at the 
Finnish Meteorological Institute

My group working on:

1 EU/GEMS. 2005-2008 (Global and regional Earth-system Monitoring using Satellite and in-situ data)
* create a new European operational system for operational global monitoring of atmospheric chemistry and dynamics and an operational system to produce improved medium-range & short-range air-chemistry forecasts, through much improved exploitation of satellite data.
* develop a global operational medium-range forecast / assimilation capability for dynamics & composition, exploiting all available satellite data. The integrated forecast / assimilation capability will provide a powerful monitoring capability for greenhouse gases, reactive gases and aerosols. Sophisticated new inversion methods will be developed to infer surface fluxes of CO2 and other species through use of the surface flask data with the gridded atmospheric fields on transport & composition. The GEMS project
* produce global retrospective analyses of the atmospheric dynamics and composition for the troposphere & stratosphere, and will be able to assess the impact of changes both on global & regional scale, examining extremes as well as means. The global forecasts will provide key information on long-range transport of air pollutants to the regional forecast models, through the forecast boundary conditions used by the regional systems. The improved regional forecasts will be used by air-quality authorities at city level, in dozens of cities across Europe. The real-time & retrospective GEMS data products will provide valuable new analysis & forecast products for regional & local users, & for the GMES Service Element. The powerful monitoring capabilities will serve policy users in the area of treaty validation (Kyoto, Montreal, CLRTAP) & science users.

2 NBC(Nuclear, biological and chemical threats) Modelling and Simulation, 2005-2008.

Organisation and planning of NBC defence activities requires new and reliable tools to predict the evolution and the consequences of an attack or terrorist action, in order to save human lives (civilian and military) and to preserve operational capabilities.
Modelling and simulation of NBC events deals with a number of different scenarios on several scales. Such simulations also include several sub-models e.g. models for emission, evaporation, deposition, dispersion, exposure, dose-response etc, linked together in a chain. The total result of the simulation depends not only on each of the individual models but also on how they work together.

3 EU/Henvinet, 2006-2008

* review, exploit and disseminate knowledge on environmental health issues based on research and practices, for wider use by relevant stakeholders.
* lead to validation of tools and results with emphasis on the four priority health endpoints of the EHAP 2004-2010, and will provide structured information overview that may be utilized by other actors relevant to Environment and Health Strategy.
* collect, structure and evaluate new material and present it in a consistent manner, which will lend itself to transparency and identification of knowledge gaps.
* establish an overview of results, activities, projects and tools existing in Europe and will promote stakeholder networking through workshops and conferences.

4 EU/eLUP, 2006-2009

* main goal is to provide training in sustainability impact assessment for land use issues
* main outputan electronic freeware textbook/tool in English and Russian languages.

5 Interreg&MINTC/Real-time assessment of ship-borne- nitrogen emissions and their effects on the marine environment in the Baltic Sea : ShipNoEm /ShipNoDeff , 2006-2007

* estimate the effects of the ship nitrogen emissions to the eutrophication of the Baltic Sea overall as well as locally.
* develop a system, which uses the real on-line ship traffic data provided by the newly established AIS system to estimate the current emissions. The emissions are used as input to an air pollution model, which calculates the nutrient deposition for a marine model. The eutrophying effects of the deposition will be analysed by the marine ecosystem model.

6 Cefic/ iF, 2005-2007

Intake fraction, iF, defined as the dimensionless fraction of an agent released from a specified source (or source category) that enters into the bodies (intake) of a target population. The iF project will expand the iF concept from releases to product volumes and use categories, advance it to probabilistic and deterministic modelling of iF distributions (also spatial) within target populations, and apply modelling in case studies, for which model outcome validation data is available.

7 ESA/COPS, 2006 -7, (Cooperating EO Sensors)

Demonstrate innovative ways in which remotely sensed EO data and other relevant data collected in-situ could be exploited in such a way to make the best use of their respective intrinsic qualities. and to advance the technology beyond what has already been established, by broadening scope of the applications and/or making the synergy between remotely and locally sensed data more systematic

8 EU/MARQUIS: Multimodal AiR QUality Information Service for the GeneralPublic - , 2005- 2007

Develop a commercial environmental information service that will provide personalized multilingual air quality information to a number of European citizens.

9 NMR/ NORPAC:Validated models describing Nordic urban and regional concentrations of particles and OC/EC, 2004-2007.

Enhance Nordic research on measurements and modelling of ultrafine particles (UFP) and particles mass (PM) through extended co-operation between Nordic research groups working on local/urban as well as regional scales. The first phase of the project will cover the following activities:
The project will use existing and establish new collaboration with other relevant Nordic and European projects.

10 ESA/Promote 2006-9

* construct and deliver a sustainable and reliable operational service to support informed decisions on the atmospheric policy issues of stratospheric ozone depletion, surface UV exposure, air quality and climate change.
* integrate existing ground based air quality networks with models and the newly available satellite measurements on air pollution in order to generate accurate daily information on air pollution levels over Europe.
* covers spatial scales from the ozone hole to polluted streets in London and temporal scales from climate and ozone trends across decades to hourly information on ultraviolet radiation levels on Mediterranean beaches. The close interaction of providers and users in the project during the consolidation stage ensures high-quality services directly addressing users' needs.

11 EU/Cair4Health , 2007-8

* strengthen and exploit research results obtained by European and other projects related to air quality and health impact in relation to key European sustainable development action plans and strategies.
* aid the review and horizon scanning process for key action plans including the Environment and Health Action Plan. It will examine the research and policy-related outputs from clusters, networks, projects and expert groups including those represented by CLEAR and AIRNET.

12 NMR/Srimpart , 2007-9

* improve knowledge of particulate emissions from urban sources, with emphasis on wood combustion, in the Nordic countries. The methodology applied is that of source/receptor modelling coupled to dispersion and transport modelling to allow an independent assessment in real world conditions of the contributions of these sources. The project is complementary to other activities based on direct emission measurements, which are still not well defined.

13 Ympäristöklusteri/PILTTI, The emissions, dispersion, population exposure and health effects of small scale wood combustion and traffic. 2006-7.

* study the exposure for fine particles near the traffic and domestic wood combustion emission
* estimate exposure for fine particles by combing the results from present study with KOPRA-project exposure model
* estimate different fine particles emissions sectors health effects
* compare costs and benefits of different emissions reduction technologies
* estimate the role of uncertainty in the decision making by using decision analyses tools
* produce popular and detailed information from fine particles health effects and from the control methods for the authorities, interest groups, and public
* produce comprehensive decision models that interest groups could used to estimate risks from fine particles and their control options
* propagate information and gather information needs from the interest groups

14 Academy of Finland/Long-range atmospheric transport of natural allergic pollutants – POLLEN, 2005-2007.

* develop an integrated modelling system for simulating and forecasting in time the pollen emissions and transport on an European scale; and
* evaluate the spatial distributions of pollen emissions and concentrations in Europe.
The project will concentrate on:
* development, evaluation and implementation in numerical model of a unified parameterization of the birch pollen emissions over Europe;
* modelling of the characteristics of pollen grains (as a special case of atmospheric aerosol);
* utilisation of the satellite and ground-based data for improved real-time modelling of pollinating seasons;
* numerical simulations of the regional and continental spatial distribution of airborne birch pollen in Europe; and
* evaluation of the accuracy and reliability of the developed modelling system, by comparing model predictions with the phenological and aerobiological, and other available experimental data. Birch pollen has been selected as the first example pollen species, due to substantial health effects for the population, and its ability to be transported over substantial distances.

15 TEKES/Helsinki TestBed , 2005 -7

Helsinki Testbed helps to develop and test new observational instruments, systems and methods.. Measurements will be accomplished through five thematic, month-long, measurement campaigns.

16 MINTC/VIEME, Reducing the noise from traffic , 2005-2006

Study on the effect of different road coating materials and tires on noise and particulate matter emissions.

The group (2005)


Modeled PM2.5 concentrations at Helsinki area (inversion day)

Modeled PM2.5 concentrations in Europe (SILAM)

no2_mob.jpg (41352 bytes)

Modeled NO2 concentrations at Helsinki area.

Modeled mixing height evolution based on ceilometer (lidar) profiles



bullet Bibliography





Some recently finished projects:


FUMAPEX, Integrated Systems for Forecasting Urban Meteorology, Air Pollution and Population Exposure (2002-2005)



COST 715, Meteorology Applied to Urban Air Pollution Problems (1998 - 2005) :The Surface Energy Budget and the Mixing height in Urban Areas


  KOPRA , An Integrated Model for Evaluating the Emissions, Atmospheric Dispersion and Risks Caused by Ambient Air Fine Particulate Matter (2002 - 2006)