1 University of Helsinki, Department of Physical Sciences, Finland 2 Stockholm University, Department of Applied Environmental Science, Sweden 3 Finnish Meteorological Institute, Air Quality Research, Finland 4 Institute for Atmospheric Science, School of Earth and Environment, University of Leeds, UK 5 Helsinki Polytechnic, Department of Technology, Finland 6 School of Mathematical Science, Qu...

Evaluation of the hydrological cycle of MATCH driven by NCEP reanalysis data: comparison with GOME water vapor field measurements R. Lang and M. G. Lawrence Max-Planck Institute for Chemistry, Mainz, Germany Received: 15 October 2004 – Accepted: 22 November 2004 – Published: 6 December 2004 Correspondence to: R. Lang ([email protected]) © 2004 Author(s). This work is licensed under a Creat...

The estimation of convective precipitation and its contribution to total precipitation is an important issue both in hydrometeorology and radio links. The greatest part of this kind of precipitation is related with high intensity values that can produce floods and/or damage and disturb radio propagation. This contribution proposes two approaches for the estimation of convective precipitation, u...

We report on 1.6 GHz Very-Long-Baseline-Interferometry (VLBI) observations of supernova SN 1979C made on 18 November 2002. We derive a model-dependent supernova size. We also present a reanalysis of VLBI observations made by us on June 1999 and by other authors on February 2005. We conclude that, contrary to our earlier claim of strong deceleration in the expansion, SN 1979C has been undergoing...

This theoretical study is carried out to investigate the effect of radiation on ice crystal spectrum in the upper troposphere. First, an explicit expression is obtained for the ice crystal growth rate that takes account of radiative and kinetic effects. Second, the expression is used to quantitatively analyse how radiation broadens the ice crystal spectrum and then to reveal a new precipitation...

[1] By diagnosing the 3-hourly North American Regional Reanalysis rainfall data set for the 1979–2003 period, it is illustrated that the eastward propagation of convection systems from the Rockies to the Great Plains plays an essential role for the warm season climate over the central U.S. This eastward propagating mode could be the deciding factor for the observed nocturnal rainfall peak over ...

On the growth of nucleation mode particles: source rates of condensable vapor in polluted and clean environments M. Kulmala, T. Petäjä, P. Mönkkönen, I. K. Koponen, M. Dal Maso, P. P. Aalto, K. E. J. Lehtinen, and V.-M. Kerminen Department of Physical Sciences, University of Helsinki, P.O. BOX 64, FIN-00014 Helsinki, Finland Finnish Meteorological Institute and University of Kuopio, P.O. BOX 16...

The results of my study (Leigh 2003, 2004) on the effect of minimum wages on employment have been brought into question by Watson (2004), which raises some potential methodological concerns. Careful reanalysis of the Western Australian minimum wage experiment demonstrates that this critique is not well founded. Further checks show that the results are robust to a number of alternative specifica...