Here are some acronyms frequently used in the space weather community:

Acronym	Definition
AFWA	Air Force Weather Agency link
CCMC	Community Coordinated Modeling Center link
CISM	Center for Integrated Space Weather Modeling link
CSEM	Center for Space Environment Modeling, BATSRUS developers link
CME	Coronal Mass Ejection
CPCP	Cross Polar Cap Potential
CMIT	Coupled Magnetosphere Ionosphere Thermosphere (LFM-TING)
CORHEL	Coronal Heliospheric model, MAS coupled to Enlil
CU/CL	Canopus Upper/Canopus Lower; indices using the Canopus magnetometer chain to measure the auroral electrojet
CVS	A version control system, link
DMI	Danish Meteorological Institute World Data Center
DST	Disturbed Storm Time; geomagnetic index measuring the ring current
ENLIL	CISM heliospheric Code, ancient Sumero-Babylonian “lord wind” of the Mesopotamian pantheon
FAC	Field Aligned Current
FTE	Flux Transfer Event (reconnection in the dayside)
FMI	Finnish Meteorological Institute
FOF2	Reflection Frequency at F2 peak
HDF	Hierarchical Data Format
HMF2	Height of F2 peak
KT	Knowledge Transfer
LFM	Lyon-Fedder-Mobarry MHD code, CISM magnetospheric code
LTR	LFM-TING-RCM, all coupled together
MAS	MHD Around a Sphere, CISM coronal code
NMF2	Maximum density at F2 peak
NME	Maximum electron density at E-region peak
MHD	MagnetoHydroDynamics
NOAA	National Oceanic and Atmospheric Administration,
NCEP	National Centers for Environmental Prediction link
NSF	National Science Foundation
O2N2	Ratio of O2 density to N2
OpenDX	Open Data Explorer; the visualization/analysis package CISM_DX is based on
RCM	Rice Convection Model
SEC	Space Environment Center link
SEP	Solar Energetic Particles
SSC	Satellite Situation Center link
TEC	Total Electron Content
TING	Thermosphere Ionosphere Nested Grid code, CISM ionospheric code