| 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 |