Nombres écrits jusqu'à 10 (A)

The observed seasonal variations of tidal amplitudes cannot be fully explained by seasonal variations of tidal forcing in the lower atmosphere (Groves, 1982a, b), of the

The study has also enabled the e€ects of sunspot number, geomagnetic activity and season on the e- ciency of the Doppler system and on the intrinsic rate of ULF wave occurrence at

Super Dual Auroral Radar Network observations of fluctuations in the spectral distribution of near range meteor echoes in the upper mesosphere and lower

Figure 2 presents the dynamic Doppler spectra (sonogram) of the HF diagnostic signals at 12095 kHz on the London ± Tromsù ± St. Petersburg path in the course of the heating

In order incorporate this new parametrisation, it was necessary to dispense with the weighting of wet depo- sition by wind roses which were used formerly. Direc- tional

The validation of the second algorithm version used until January 1998 reveals a very good agreement between GOME and ground-based data at solar zenith angles <60° and deviations

a The amplitude of the diurnal tide over Bulgaria (solid line) and the U K (dashed line) for zonal (upper panel) and meridional (lower panel) components. The data have been

How- ever, the asymmetric development of the low-latitude geomagnetic disturbance ®eld during storms lead to the assumption of the real existence of an asymmetric ring current.. I