Marke Hongisto

no

YK:n ilmansaasteiden kaukokulkeutumissopimuksen (LRTAP) yhteyteen 1980 perustetun vaikutus-työryhmän (Working Group of Effects) yksi tavoitte on määritellä ilman kautta kulkeutuville epäpuhtauksille sellaiset laskeuma- ja pitoisuustasot jotka eivät aiheuta haittaa ihmisille, herkille maa- ja vesien ekosysteemeille eikä materiaaleille. Työ perustuu...

http://mal-liitto.fi/fi/system/files/content/lehdet/lehti_1_2015.pdf

The source-receptor calculations of European monitoring and evaluation program (EMEP) between Finland and Russia have been discussed in the Finnish public media in autumn 2013 after the Russian environmental organisation Green Patrol accused Western countries of polluting the Kola Peninsula. The air pollution fluxes between Russia and Nordic countr...

YVA ja Ydinvoimaloiden ympäristövaikutuksista Marke Hongisto Luentotilaisuus keskiviikkona 24. syyskuuta kello 12.00 – 15.30 Helsinki, Pikkuparlamentti, kansalaisinfo, Arkadiankatu 3. Järjestäjä mm. Naiset Rauhan Puolesta FENNOVOIMAN HANKE PUNTARISSA Fennovoiman suunnitellun ydinvoimalan ympäristövaikutuksista ja Hanhikiven YVA;n arviointia • yleis...

The source-receptor calculations of EMEP between Finland and Russia have been discussed in the Finnish public media in autumn 2013 after the Russian environmental organization Green Patrol has abused western countries for pollution of the Kola Peninsula. The air pollution fluxes between Russia and Nordic countries calculated with the EMEP western c...

The source-receptor calculations of EMEP between Finland and Russia have been discussed in the Finnish public media in autumn 2013 after the Russian environmental organization Green Patrol has abused western countries for pollution of the Kola Peninsula. The air pollution fluxes between Russia and Nordic countries calculated with the EMEP western c...

http://www.iopan.gda.pl/oceanologia/562hongi.pdf The impact of ship traffic emissions in the Baltic Sea on deposition and airborne concentrations of nitrogen and sulphur compounds in the per iod 2008–2011 was studied using the Hilatar chemistry transport model with a 0.068 latitude-longitude resolution. An accurate ship emission inventory based on...

The degree of inter-annual variability in spring and summer phytoplankton blooms and nitrogen fixation in response to the deposition of oxidized nitrogen originating from ship emissions (hereafter nitrogen deposition) was evaluated in the Gulf of Finland (Baltic Sea) based on 10-year (1997–2006) simulation results using a coupled hydrodynamic (GETM...

http://www.inderscience.com/info/inarticle.php?artid=51201 HELCOM has defined eutrophication as the greatest threat to the Baltic Sea environment. The focus of the paper is the identification of the possible geographical areas from where the airborne nitrogen deposited to the Baltic Sea sub-basins during main episodic events is emitted. While the n...

The variability of the marine boundary layer parameters over the Baltic Sea and its sub-basins and their impact on the 6 h, monthly or seasonal deposition of oxidized nitrogen compounds was studied using results of the Hilatar chemistry-transport model, the 6th hour forecasts of the HIRLAM weather prediction model and meteorological measurement dat...

IL:n kirjaston historiaa, 1847-2009 Lakkautusprosessi Henkilöstökysely Lakkauttamisen seurauksia

We surveyed the regional distribution of conifer defoliation in Finland with an extensive monitoring network during 1995-2006 (EU Forest Focus Level I). The average defoliation in the whole Finland was 10.3% in pine and 19.9% in spruce. The sharp changes were often related to abiotic and biotic factors. The mean age of the stand explained more than...

Abstract: Deposition and concentrations of nitrogen and sulphur compounds, calculated with the model Hilatar over the resent years, are presented. The model structure, performance and development of its parameterization schemes are shortly reviewed. Model applications in estimating background area pollutant concentrations and depositions since 2000...

Hongisto, M. & Joffre, S. 2005: Meteorological and climatological factors affecting transport and deposition of nitrogen compounds over the Baltic Sea. Boreal Env. Res. 10: 1–17. We studied the variation of the nitrogen deposition to the Baltic Sea with the Eulerian transport-chemistry model Hilatar. We analysed the effects of the climatological an...

In this article, selected weather prediction model parameters, which are important for air pollution studies, were verified against measurements at two sounding stations in Finland. In 1996–1998, the short-time model-measurement differences were rather high. The friction velocity was on average overestimated by 30–70%, the mixing height during spri...

city centre, was largest in the beginning of the 1900s, 0.7-0.8 oC. Solantie (1978) reported an 0.2-0.5 oC increase in the temperatures in the lee areas of some industrial towns between periods 1931-1960 and 1961-1975. Tuomenvirta (2004) used the adjustement of Heino (1994) for Kaisaniemi station, and minor ones, mostly connected to station re-loca...

We investigated the sources of a PM10 episode in September 2001 on the coasts of the Gulf of Finland. The episode lasted six days with the peak phase lasting over 14 hours. The highest hourly PM10 concentration was 190 μg m-3. Exceptional meteorological conditions strongly influenced the course of the episode. Very warm air masses came from central...

In the 18–19 September exceptional weather conditions brought to the Scandinavia very hot air and long-range transported particles. In the paper a dust episode detected in Southern Finland, Estonia and Sweden is discussed. Short and long-range transport of dust to the target areas are simulated with a grid model Hilatar. It was found, that the dust...

The model calculations of oil-shale fly ash deposition from the Narvapower plants (north-eastern Estonia) are performed using the models HILATAR (regional scale) and AEROPOL (local scale). The modelling results are compared with air quality monitoring results from the observation stations in the Baltic Sea region and with the results of snow pollut...

This paper summarises multi-annual simulation studies with the Eulerian transport-chemistry model Hilatar over Europe and the Baltic Sea region. The modelled concentration and deposition fields and model-measurement intercomparison results are presented and variability patterns are analysed. Although the European emissions slightly decreased during...

The three-dimensional model Hilatar, designed to study and predict the physico-chemical transport, transformation and deposition of various trace constituents over Europe and its subparts is shortly described. The performance of individual algorithms and comparison with parameterisation with other models are discussed. In comparison with measuremen...

A 3D model based estimate of the atmospheric nutrient load (AL) to the Baltic Sea (BS) is compared to other external and internal load sources. The eutrophication state of the Baltic Sea, nutrient deposition and it's importance, factors affecting to the time variability of the load and uncertainties in 3D modelling are discussed.

Tiivistelmä: Rikki- ja typpiyhdisteiden kulkeutumisen mallittaminen Itämeren alueelle. Diss. -- Espoo -- Teknillinen korkeakoulu.

The results of application of two nested Eulerian atmospheric transport models for investigation of airborne heavy metal pollution are presented. The distribution and deposition over Europe and Baltic Sea region were simulated for Pb, Cd and Zn for 2 two-months periods: June–July 1997 and February–March 1998. The European-wide calculations were mad...

The FMI is participating in the EU MAST research program for regional seas: BASYS (Baltic Sea System Study) subproject 5: air pollution load. One primary objective of this subproject is to improve knowledge of the atmospheric input to the Baltic Sea by calculating and simultaneously measuring the fluxes of the relevant airborne pollutants, and seve...

An account is given on the first results achieved by an approach that integrates measurements, model simulations and process studies. Emphasis is on the particulate fraction of the aerosol carried to the Baltic Sea.

Green algae have become considerably more abundant in the years 1985–1995 in Finland and their distribution area has expanded northwards. Green algae on conifers were most abundant in southern Finland where the nitrogen deposition is highest. Correlations were observed between the abundance of green algae and a modelled nitrogen and sulphur deposit...

The EURAD model system which has usually been used with relatively coarse resolution (80 × 80 and 50 × 50 km2) can now perform simulations with considerably higher resolution employing the technique of nesting. The model system has been applied to various scientific and practical questions, for instance to the estimation of cross-tropopause ozone f...

In long range transport models the choice of parameterization leads to highly varying residence times of the compounds in the air. In this study we have simulated the chemical transformation of some oxidized nitrogen compounds above typical Finnish terrains in different meteorological conditions. Our purpose was to collect information on how the si...

When selecting the installations which should reduce their sulphur releases to achieve internationally agreed emission reduction goals, one possible criterion is the minimization of total reduction costs when simultaneously the deposition is limited below a certain value. In this work possible sulphur emission reduction alternatives are studied for...

Some of the main points of the modelling of oxidized N compounds on a regional scale are discussed using the Finnish Eulerian NOx model as an example. The importance of emission inventories is emphasized. An example of the effect of summer and winter conditions on NOx transformation is shown by a simple chemical simulation. Meteorological character...