| Acronym | Meaning |
 | HI | Human Interface |
| IAD | Dulles International Airport |
| GGEM | Gravity Gradiometer Explore Mission |
| ISWS | Illinois State Water Survey |
| DPFC | Defense Program Field Council |
| MASI | Middle Atmosphere Science Initiative |
| M-BNW | Batelle Northwest |
| SCS | Soil Conservation Service |
| DOW | Defenders Of Wildlife |
| ADM | Arrow Diagram Method |
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