'First GARP Global Experiment Concept', 1978.

An illustration showing the major components of the Global Atmospheric Research Programme (GARP). GARP, which operated between 1967 and 1982, was an international programme designed to improve knowledge of the global atmospheric proceses that bring about changes in weather and climate. The first GARP Global Experiment involved the detailed study of the entire atmosphere over a whole year (December 1978-November 1979), with a large number of organisations from around the world involved. The findings constituted the most extensive meteorological data ever collected, and led to substantial improvements in the accuracy and range of weather forecasting.