MONEX is associated with monsoon experiment. The MonsoonExperiment (MONEX) was the core of the Global Atmospheric Research Program (GARP), a monsoon subprogram, which was a major international effort to achieve a better understanding of theplanetary monsoon circulation. The Summer Monsoon Experiment (SMONEX) was conducted over the Indian Ocean and adjacent landareas from May through August 1979. S-MONEX was a follow-onexperiment to the Winter MONEX (W-MONEX) conducted in the South China Sea from December 1978 through March 1979. Twenty-one countries (mostly regional) with other major international countries including the U.S.A., U.S.S.R., Japan, France, Australia, India and China, all participated in S-MONEX.