Resolution No.3 (1977): Support for rocket and balloon programmes
IAGA, noting that in providing vertical profiles of neutral and ionised constituents, sounding rockets and balloons have special roles to play both by virtue of the short time needed in deciding to launch and because of the inaccessibility of the atmosphere below 120km to orbiting spacecraft, recommends that the present level of support for rocket and balloon programmes be maintained, with an appropriate increase in special circumstances such as solar eclipses.