| Acronym | Meaning |
| CCR/IDA | Center For Communications Research/Institute For Defense Analyses |
| MARC | Middle Atmosphere Responses To Changes |
| WERC | World Environment And Resources Council |
| ALA-O | Delta-aminolevulinic Acid Dehydrates |
| VBNS | Very High Performance Backbone Network Service |
| ESIP | Earth System Information Partners Federation |
| IUGG | International Union Of Geodesy And Geophysics |
| LCD | Liquid Crystal Display |
| JMG | Joint Meteorological Group |
| MLM | Time-varying Horizontal Model Of The Lavoice Type |