| Acronym | Meaning |
 | ESTSC | Energy Science And Technology Software Center |
| SID | Sudden Ionospheric Disturbance |
| INSU | National Institute For Sciences Of The Universe |
| DOT | Department Of Transportation |
| CDOS | Customer Data And Operations System |
| SPL | SLATEC Plotting Library |
| GCTE | Global Change And Terrestrial Ecosystems |
| UCAR | University Corporation For Atmospheric Research |
| ERS-2 | European Remote Sensing |
| TOA | Top Of The Atmosphere |
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