|
Contraction
|
Definition
|
Usage
|
|
G
|
Green
|
ICAO
|
|
G
|
gusts
reaching (knots) (weather reports only)
|
NWS
|
|
G/A
|
ground to air |
ICAO
|
|
G/A/G
|
ground to air and air to ground
|
ICAO
|
|
GA
|
general aviation |
GEN
|
|
GA
|
glide
angle |
GEN
|
|
GA
|
Go
ahead, resume sending (to be used in AFS
as a procedure signal)
|
ICAO
|
|
GADO
|
General Aviation District Office
|
GEN
|
|
GALS
|
gallons |
ATC
|
|
GBA
|
give
better address |
GEN
|
|
GBAS
|
ground-based augmentation system
|
ICAO
|
|
GBL
|
government bill of lading
|
GEN
|
|
GBR
|
give
better reference |
GEN
|
|
GC
|
ground control |
GEN
|
|
GCA
|
ground control approach
|
ICAO
|
|
GCI
|
ground control intercept
|
GEN
|
|
GCO
|
ground communication outlet
|
ATC
|
|
GDP
|
ground delay program |
ATC
|
|
GDPGM
|
Ground Delay Program |
ATC
|
|
GEN
|
general |
GEN
|
|
GENOT
|
general notice |
GEN
|
|
GEO
|
geographic |
GEN
|
|
GEOREF |
geographical reference
|
GEN
|
|
GES
|
ground earth station |
ICAO
|
|
GHZ
|
gigahertz |
GEN
|
|
GIC
|
GPS
Integrity Channel |
ATC
|
|
GICG
|
glaze
icing |
NWS
|
|
GLD
|
glider |
ICAO
|
|
GLDR
|
glider |
GEN
|
|
GLFALSK |
Gulf
of Alaska |
NWS
|
|
GLFCAL |
Gulf
of California |
NWS
|
|
GLFMEX |
Gulf
of Mexico |
NWS
|
|
GLFSTLAWR |
Gulf
of St. Lawrence |
NWS
|
|
GLONASS |
global navigation satellite system
|
ICAO
|
|
GLONASS |
Global orbiting navigation satellite
system |
ICAO
|
|
GLS
|
GBAS Landing System |
ICAO
|
|
GMC
|
Ground movement chart (followed by
name/title) |
ICAO
|
|
GMT
|
Greenwich Mean Time |
GEN
|
|
GND
|
ground |
GEN
|
|
GNDCK
|
ground check |
ICAO
|
|
GNDFG
|
ground fog |
NWS
|
|
GNSS
|
global navigation satellite system (in
general) |
ICAO
|
|
GNTR
|
generator |
GEN
|
|
GOV
|
Governor |
GEN
|
|
GOVT
|
government |
GEN
|
|
GP
|
glide
path |
ICAO
|
|
GPI
|
ground point of intercept
|
ATC
|
|
GPS
|
global positioning system
|
ICAO
|
|
GQA
|
get
quick answer |
GEN
|
|
GR
|
hail
(greater than 3/4”) |
METAR
|
|
GRAD
|
gradient |
NWS
|
|
GRADU
|
gradual |
ICAO
|
|
GRASS
|
grass
landing area |
ICAO
|
|
GRBL
|
garble |
GEN
|
|
GRBNKS |
Grand
Banks |
NWS
|
|
GRDL
|
gradual |
NWS
|
|
GRID
|
grid
point values of processed meteorological
data |
ICAO
|
|
GRTLKS |
Great
Lakes |
NWS
|
|
GRVL
|
gravel |
ICAO
|
|
GS
|
glide
slope |
GEN
|
|
GS
|
Ground stop |
ATC
|
|
GS
|
Ground speed |
ATC
|
|
GS
|
snow
pellets/small hail (less than 1/4”)
|
METAR
|
|
GSA
|
General Services Administration
|
GEN
|
|
GSDO
|
General Safety District Office
|
GEN
|
|
GSI
|
General safety inspector
|
GEN
|
|
GSTS
|
Gusts
|
NWS
|
|
GSTY
|
gusty
|
NWS
|
|
GTC
|
gain
time control |
ATC
|
|
GTCL
|
Great
Circle |
GEN
|
|
GTR
|
greater |
GEN
|
|
GUND
|
Geoid
undulation |
ICAO
|
|
GV
|
ground visibility |
NWS
|
|
GVG
|
giving |
GEN
|
|
GVH
|
government vehicle |
GEN
|
|
GWT
|
gross
weight |
GEN
|
