The ROSGIDROMET service special session on the development of experimental research.

Such agenda is predetermined by that the economic situation slightly improves so, we could adapt and should intensify our research activity. About 30 participants are get together at Valday lake. Most of the reports were from the institutes studied the atmospheric phenomena. So, Dr. V.N. Ivanov, deputy director of the leading institute named "Typhoon" has delivered the report on experimental studies aimed towards control of the clouds and precipitation.

The finest experiments are conducted in microphysics of aerosols and cloud drops. Another development appears in radiative properties of clouds. These studies require the precisely built (as well as of an excessive price) instruments such as lidar and airborne cloud radar. Obninsk, the town in Kaluga region where a number of the ROSGIDROMET institutes are located, is renowned also by the high (about 300 m) mast equipped with the instruments for studies of the atmospheric boundary layer.

Experimental studies in atmospheric physics result in very useful applications such as increasing the rainfall amount where it is strongly requested, preventing hail storms and dissipation of low-level clouds and fogs over airports. These services are provided by the special Agency of Atmospheric Technology (see http://www.attech.ru).

On experimental hydrology, four reports were delivered, a review and three special issues:

1. Markov, M. L., S.V. Zavileysky, and S.V. Marunich. Runoff generation process at small catchment scale
2. Kaljuzhny, I.L., V.A. Shutov, and S.A. Lavrov. Investigations in the snow- and soil physics as applied to runoff computation and forecasting
3. Klaven, A.B., and V.A. Vinogradov. River bed deformations and sediment transport

Since the reports will soon be published, I promise to set the ours (numbered 2) onto the site.

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