| Acronym | Meaning |
 | M-PDU | Multiplexed Protocol Data Unit |
 | NSCAT | NASA Scatterometer |
 | GRACE | Gravity Recovery And Climate Experiment |
 | TUTT | Tropical Upper-tropospheric Trough |
 | GIIS | General Instrument Interface Specification |
 | OSR | Office Of Scientific Research |
 | SIRIS | Stratospheric Infrared Interferometer Spectrometer |
 | B | Bit |
 | CDT | Conventional Defense Technology |
 | MFD | Master File Directory |