APPENDIX C
Abbreviations and Acronyms
| ACE | Advanced Composition Explorer |
| AE | auroral electrojet |
| AGO | Automated Geophysical Observatory |
| ARGOS | Advanced Research and Global Observing Satellite |
| AU | astronomical unit |
| CEDAR | Coupling Energetics and Dynamics of Atmospheric Regions |
| CME | coronal mass ejection |
| CRRES | Combined Release and Radiation Effects Satellite |
| CSEF | Committee for Space Environment Forecasting |
| CSTR | Committee on Solar Terrestrial Research |
| CSW | Committee for Space Weather |
| DMSP | Defense Meteorological Satellite Program |
| DOC | Department of Commerce |
| DoD | Department of Defense |
| DOE | Department of Energy |
| DOI | Department of Interior |
| Dst | magnetic disturbance storm time index |
| E-field | electric field |
| ESA | European Space Agency |
| EUV | extreme ultraviolet |
| FAST | Fast Auroral Snapshot |
| FCMSSR | Federal Committee for Meteorological Services and Supporting Research |
| 50 WS | 50th Weather Squadron |
| GEM | Geospace Environment Modeling Program |
| GGS | Global Geospace Science Program |
| GIC | geomagnetically induced currents |
| GLO | Arizona Airglow Experiment |
| GOES | Geostationary Operational Environmental Satellite |
| GPS | Global Positioning System |
| HESI | High Energy Solar Imager |
| HF | high frequency |
| ICMSSR | Interdepartmental Committee for Meteorological Services and Supporting Research |
| IMAGE | Imager for Magnetopause to Aurora Global Exploration |
| IMF | interplanetary magnetic field |
| IPS | interplanetary scintillation |
| IR | infrared |
| IRI | International Reference Ionosphere |
| ISES | International Space Environment Service |
| ISTP | International Solar-Terrestrial Physics Program |
| IUWDS | International URSIgram and World Days Service |
| L1 | Lagrangian point |
| LEO | low Earth orbit |
| LORAN | Long-range Radio Navigation |
| LTE | local thermodynamic equilibrium |
| MeV | million electron volts |
| MHD | magnetohydrodynamics |
| MLTI | mesosphere and lower thermosphere/ionosphere |
| MSFM | Magnetospheric Specification and Forecast Model |
| MSIS | Mass Spectrometer and Incoherent Scatter model |
| MSM | Magnetospheric Specification Model |
| MSX | Midcourse Space Experiment |
| NASA | National Aeronautics and Space Administration |
| NGDC | National Geophysical Data Center |
| NAS | National Academy of Sciences |
| NOAA | National Oceanic and Atmospheric Administration |
| NPOESS | National Polar-orbiting Operational Environmental Satellite System |
| NSF | National Science Foundation |
| NSSDC | National Space Science Data Center |
| NSWP | National Space Weather Program |
| NSWPC | National Space Weather Program Council |
| OFCM | Office of the Federal Coordinator for Meteorology |
| PCO | Polar Cap Observatory |
| PL | Phillips Laboratory |
| POES | Polar Orbiting Environmental Satellite |
| PRISM | Parameterized Realtime Ionospheric Specification Model |
| RE | Earth radii |
| RPC | Rapid Prototyping Center |
| RS | solar radii |
| RSTN | Radio Solar Telescope Network |
| SAMPEX | Solar Anomalous Magnetospheric Particle Experiment |
| SEC | Space Environment Center |
| SEP | solar energetic particles |
| SHINE | Solar Heliospheric and Interplanetary Environment Program |
| SMEI | Solar Mass Ejection Imager |
| SOHO | Solar and Heliospheric Observatory |
| SRBL | Solar Radio Burst Locator |
| SST | supersonic transport |
| SuperDARN | Super Dual Auroral Radar Network |
| SXI | Solar X-ray Imager |
| T2 | technology transfer |
| TIEGCM | Thermosphere-Ionosphere Electrodynamics General Circulation Model |
| TIMED | Thermosphere-Ionosphere-Magnetosphere Energetics and Dynamics Mission |
| TIROS | Television and Infrared Observation Satellite |
| 3D | three dimensional |
| TRACE | Transitions Region and Coronal Explorer |
| UHF | ultrahigh frequency |
| UARS | Upper Atmosphere Research Satellite |
| USAF | United States Air Force |
| USGS | United States Geological Survey |
| UV | ultraviolet |
| VHF | very high frequency |
| WG/NSWP | Working Group for the National Space Weather Program |