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Growing season precipitation in Finland under recent and projected climate
Growing season precipitation Finland under recent projected climate
2010/10/21
The past and projected future precipitation sum in May–September for two areas in Finland, one located in the south-west (SW) and the other in the north-east (NE), is studied using 13 regional climate...
Factors influencing the contribution of ion-induced nucleation in a boreal forest, Finland
ion-induced nucleation a boreal forest Finland
2010/8/12
We present the longest series of measurements so far (2 years and 7 months) made with an Ion-DMPS at the SMEAR II measurement station in Hyytiälä, Southern Finland. We show that the classifi...
Hydrogen soil deposition at an urban site in Finland
Hydrogen soil deposition urban site Finland
2009/11/19
Hydrogen deposition velocities (vd) were estimated by field chamber measurements and model simulations. A closed-chamber method was used for soil deposition studies in Helsinki, Finland, at an urban p...
Atmospheric hydrogen variations and traffic emissions at an urban site in Finland
Atmospheric hydrogen variations traffic emissions Finland
2009/10/9
Atmospheric hydrogen (H2) mixing ratios were observed over a one year period from summer 2007 to 2008 in Helsinki, Finland. Relatively stable background values of hydrogen were occasionally observed a...
Time span and spatial scale of regional new particle formation events over Finland and Southern Sweden
regional new particle formation events Finland Southern Sweden
2009/7/23
We investigated the time span and spatial scale of regional new particle formation (NPF) events in Finland and Southern Sweden using measured particle number size distributions at five background stat...
Results of Measurements with Renqvist's Evaporation Recorded in South Finland in Summer 1950
Results of Measurements with Renqvist's Evaporation Recorded in South Finland in Summer 1950
2009/6/19
Results of Measurements with Renqvist's Evaporation Recorded in South Finland in Summer 1950.
A Computation of the Evaporation over Finland during a Rainless Period based on the Divergence of the Water-vapor Flux
Computation Evaporation Rainless Period Water-vapor Flux
2009/6/19
A Computation of the Evaporation over Finland during a Rainless Period based on the Divergence of the Water-vapor Flux.
On the Amount of Dew in Finland.
Extreme Distribution Functions for Daily and Monthly Precipitation in Finland
Extreme Distribution Functions Precipitation Finland
2009/6/16
Extreme Distribution Functions for Daily and Monthly Precipitation in Finland.
Classifying previously undefined days from eleven years of aerosol-particle-size distribution data from the SMEAR II station, Hyytiälä, Finland
aerosol-particle-size distribution SMEAR II station Hyytiä lä Finland
2009/3/12
Studies of secondary aerosol-particle formation depend on identifying days in which new particle formation occurs and, by comparing them to days with no signs of particle formation, identifying the co...
Carbonyl compounds in boreal coniferous forest air in Hyytiälä, Southern Finland
Carbonyl compounds boreal coniferous forest air Hyytiä lä Southern Finland
2009/3/5
A variety of C1-C12 carbonyl compounds were measured in the air of a boreal coniferous forest located in Hyytiälä, Southern Finland. 24-hour samples were collected during March and April in ...
Observation of 2-methyltetrols and related photo-oxidation products of isoprene in boreal forest aerosols from Hyytiälä, Finland
2-methyltetrols photo-oxidation products isoprene boreal forest aerosols Finland
2009/2/18
Oxidation products of isoprene including 2-methyltetrols (2-methylthreitol and 2-methylerythritol), 2-methylglyceric acid and triol derivatives of isoprene (2-methyl-1,3,4-trihydroxy-1-butene (cis and...
Characterization of aerosol particle episodes in Finland caused by wildfires in Eastern Europe
aerosol particle episodes Finland wildfires Eastern Europe
2009/2/16
We studied the sources, compositions and size distributions of aerosol particles during long-range transport (LRT) PM2.5 episodes which occurred on 12–15 August, 26–28 August and 5–6 September 2002 i...
Changes in background aerosol composition in Finland during polluted and clean periods studied by TEM/EDX individual particle analysis
background aerosol composition Finland polluted and clean periods TEM/EDX individual particle
2009/1/16
Aerosol samples were collected at a rural background site in southern Finland in May 2004 during pollution episode (PM1~16 µg m−3, backward air mass trajectories from south-east), intermed...
New particle formation in air mass transported between two measurement sites in Northern Finland
air mass transported Northern Finland
2009/1/13
This study covers four years of aerosol number size distribution data from Pallas and Värriö sites 250 km apart from each other in Northern Finland and compares new particle formation events...