| Acronym | Meaning |
 | BHP | Brake Horsepower |
 | CCL | Convective Condensation Level |
 | DTG | Data Time Group |
 | SSM/R | Special Sensor Microwave Radiometer |
 | TAO | Tropical Atmosphere Ocean |
 | APOL | Analytical Photonics And Opto-Electronics Laboratory |
 | TOS | Tiros Operational Satellite |
 | AFESC | Air Force Engineering & Sciences Center |
 | SAS | Statistical Analysis System |
 | PEM | Pacific Exploratory Measurements |