Global Forecast System (GFS) Data

ad hoc working group on global safety data network

noise exposure forecast system

differential global-positioning system (DGPS)

differential global-positioning system surveying

Global Disaster Alert and Coordination System (GDACS) (UN)

Global Maritime Distress Safety System (GMDSS)

Global Navigation Satellite System (GLONASS)

Global Navigation Satellite System (GNSS)

Global Positioning System (GPS)

Charter on the rights and obligations of States relating to global navigation satellite system (GNSS) services

global navigation satellite system

Guidelines for the Introduction and Operational Use of Global Navigation Satellite System

embedded global-positioning and inertial-navigation system (EGI) / embedded GPS/INS

enhanced global positioning and inertial navigation system (EGI) / enhanced GPS/INS

global positioning system-guided munitions (GPS-guided)

Global Mobile Artillery Rocket System (GMARS)

contamination forecast

trend forecast (TTF)

trend-type landing forecast

baroclinic forecast

forecast center

forecast of ocean currents

landing forecast

aerodrome forecast

World area forecast center

air route forecast

area forecast panel

aviation weather forecast

flight forecast

flight weather forecast

forecast

forecast error