Placer en Ordre des Nombres Compris Entre 0 et 10 sur un Arbre de Noël (A)

Time evolution of the (NO) mixing ratio in the model box: 1, narrow plume; 2, basic, 3, wide plume, and circles, measured (NO) in cross section of various exhaust plumes over

Two conclusions are reached: (1) with an optimal set of solar-wind data available, the AE predictions are not markedly improved by the Dst input, but (2) the AE predictions are

From comparison of ground observations of auroral forms with meridional pro®les of particle ¯ux measured simultaneously by the low-altitude NOAA satellites above the ground

In order to quantify the relative importance of the QBO cycle with respect to the annual variation in UV erythemal dose, we calculated the peak-to-peak amplitudes of the an- nual

We applied the procedure to a baseline analysis of the perfor- mance of a recently proposed solar UV occultation sensor (SMAS – Sun Monitor and Atmospheric Sounder) and pro- vide,

The role of vertical transport by cloud convection on the observed seasonal cycle of the surface concentration has been noted by the modelling study of CFCl 3 and CF 2 Cl 2 over..

The results of three series of simultaneous measurements of the mesospheric electric ®elds, ion density and conductivity carried out under di€erent geomagnetic conditions at polar

The results show that a direct relation between L and R is observed under the western phase of the QBO and there exists a saturation e€ect at R > 60: For R < 60 the