First Paragraph
The U.S. Navy has a need for the analysis and prediction of the atmosphere and the ocean. Routine military exercises can be profoundly affected by variations in the atmospheric temperature, relative humidity, and wind; and by variations in the ocean temperature, salinity, and currents. These variations can significantly affect tactical parameters, such as radar propagation, acoustics, and visibility, which can be critical to the success of military missions. Often, these variations occur across small space and time scales, making them difficult to observe and to predict.