The measurement of frequencies, amplitudes and lifetimes of solar oscillations has proven to be a very powerful tool to sound the properties of the solar internal structure. Combined with observations of emerging solar magnetic field parameters of the solar internal structure and dynamo can be inferred. The same techniques may be used to sound

The first data of a SOHO-GOLF type instrument are presented. The slopes of the solar sodium lines profiles D1 and D2 and their variations with the excursion of the working point are shown. Two methods of determining the oscillation velocity are compared, one usually used with two-point spectrometers and one using the four-point information. It is

Phase differences between irradiance and full-disk velocity variations are derived for l = 0, 1, and 2 modes with order ranging from 11 up to 30 (1.8-4.3 mHz). Irradiance measurements from the IPHIR instrument flown on the PHOBOS mission to Mars during the second half of 1988 and simultaneous velocity measurements obtained at Tenerife are used. The

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