1. Brummer, B., F. Ostapoff, and H. Schmdt, 1973: Upper air soundings during the Atlantic Trade-Wind Experiment (1969). Vol. 1,2,3. Published by NOAH, Miami, Florida.
2. Jordan, C.L., 1958: Mean soundings for the West Indies area. J. Meteor., 15, 91-97.
3. Madden, R., E. Zipser, E. Danielsen, D. Joseph, and R. Gall, 1971: Rawinsonde data obtained during the Line Islands Experiment. Vol. 1,2. NCAR-TN/STR-55, Boulder, Colorado.
4. Simpson, R.H., 1947: Synoptic aspects of the Inter-tropical Convergence near Central and South America. Bull. Amer. Meteor. Soc., 24, 335-346.