| Air temperature triggers the recovery of evergreen boreal forest photosynthesis in spring | Global Change Biology | 2003 | 237 |
| Extensive evaluation of neural network models for the prediction of NO2 and PM10 concentrations, compared with a deterministic modelling system and measurements in central Helsinki | Atmospheric Environment | 2003 | 231 |
| Seasonal variation of VOC concentrations above a boreal coniferous forest | Atmospheric Environment | 2003 | 186 |
| Diurnal and annual characteristics of particle mass and number concentrations in urban, rural and Arctic environments in Finland | Atmospheric Environment | 2003 | 151 |
| One year boundary layer aerosol size distribution data from five nordic background stations | Atmospheric Chemistry and Physics | 2003 | 108 |
| Soil and total ecosystem respiration in agricultural fields: effect of soil and crop type | Plant and Soil | 2003 | 108 |
| Production of “potential” cloud condensation nuclei associated with atmospheric new-particle formation in northern Finland | Journal of Geophysical Research | 2003 | 99 |
| Stormtime energy transfer in global MHD simulation | Journal of Geophysical Research | 2003 | 85 |
| Ionospheric equivalent current distributions determined with the method of spherical elementary current systems | Journal of Geophysical Research | 2003 | 84 |
| Modelling the solar wind interaction with Mercury by a quasi-neutral hybrid model | Annales Geophysicae | 2003 | 81 |
| Solar wind and magnetospheric ion impact on Mercury's surface | Geophysical Research Letters | 2003 | 78 |
| Size distributions of mass and chemical components in street-level and rooftop PM1 particles in Helsinki | Atmospheric Environment | 2003 | 74 |
| Number size distributions and concentrations of the continental summer aerosols in Queen Maud Land, Antarctica | Journal of Geophysical Research | 2003 | 74 |
| Validation of POAM III ozone: Comparisons with ozonesonde and satellite data | Journal of Geophysical Research | 2003 | 67 |
| Stratospheric ozone profiles retrieved from limb scattered sunlight radiance spectra measured by the OSIRIS instrument on the Odin satellite | Geophysical Research Letters | 2003 | 66 |
| Observations of new particle formation and size distributions at two different heights and surroundings in subarctic area in northern Finland | Journal of Geophysical Research | 2003 | 65 |
| Scattering of light by large Saharan dust particles in a modified ray optics approximation | Journal of Geophysical Research | 2003 | 63 |
| MR imaging-guided laser ablation of osteoid osteomas with use of optical instrument guidance at 0.23 T | European Radiology | 2003 | 58 |
| Comparison of measured single-scattering matrix of feldspar particles with T-matrix simulations using spheroids | Journal of Quantitative Spectroscopy and Radiative Transfer | 2003 | 57 |
| Modelling of the influence of aerosol processes for the dispersion of vehicular exhaust plumes in street environment | Atmospheric Environment | 2003 | 51 |
| April 2000 geomagnetic storm: ionospheric drivers of large geomagnetically induced currents | Annales Geophysicae | 2003 | 50 |
| Nucleation events in the continental boundary layer: Long-term statistical analyses of aerosol relevant characteristics | Journal of Geophysical Research | 2003 | 49 |
| Characteristics of an ozone deposition module II: Sensitivity analysis | Water, Air, and Soil Pollution | 2003 | 47 |
| Composition of the Finnish Arctic aerosol: collection and analysis of historic filter samples | Atmospheric Environment | 2003 | 43 |
| Evidence of near-Earth breakup location | Geophysical Research Letters | 2003 | 40 |
