ACC Area Control Center
ACC Air Combat Command
ACCEL Acceleration Point
ADA Advisory Area
ADIZ Air Defense Identification Zone
ADP Additional Point: An additional point is a route point associated with a turn point typically used to provide auxiliary information about its turn point.
ADRG ARC Digitized Raster Graphic: a set of digitized maps (usually from scanned in paper charts) transformed into ARC system.
AGL Above Ground Level
AMSL Above Mean Sea Level

Equal Arc-Second Raster Chart/Map: The ARC system divides the surface of the earth ellipsoid into 9 latitudinal bands per hemisphere called zones. The (2) polar zones use the Azimuthal Equidistant projection. Each of the (16) non-polar zones use an Equirectangular projection with the standard parallel being the midpoint latitude for the zone. The ARC system is described in MIL-A-89007 (the ADRG specification) and is used by CADRG, ECRG, CIB and ECIB.

In the Polar Azimuthal Equidistant projections used in the ARC system, all points on the map are at the correct azimuth (direction) and proportionally correct distance from the respective pole. Meridians (lines of longitude) are straight. Parallels (lines of latitude) are circles centered at the respective pole.

In the Equirectangular projections used in the ARC system,  meridians and parallels are straight lines of constant spacing, and meridians and parallels intersect at right angles. The projection distorts both area and angles, that is, it is neither equal area nor conformal. In each zone the image is stretched (on the poleward side of the midpoint latitude) and squashed (on the equatorward side of the midpoint latitude) in the East-West direction.

When FalconView displays an Equal Arc map it uses the latitude at the center of the map as the standard parallel, rather than using ARC zone midpoint latitudes, so the line of least distortion is always in view.

AZAR Assault Zone Availability Report
CADRG Compressed ARC Digitized Raster Graphics: a set of digitized maps and chart images derived from ADRG or other sources though subsampling, compression and reformatting. CADRG uses the ARC system like ADRG and the data is compressed at roughly 55:1 relative to ADRG.
CARP Computed Air Release Point
CAS Calibrated Airspeed
CFPS Combat Flight Planning Software
CD-ROM Compact Disk-Read Only Memory
CHUM Chart Updating Manual
CIB Controlled Image Base: digital imagery that has been orthorectified and projected into the ARC system. CIB is grayscale (panchromatic) imagery and is commonly available at 10, 5 and 1 meter resolutions.
CMF Combat Mission Folder
CMPS AFMSS/SOFPARS Common Mapping Production System
CMS Common Mapping System: The CMS Phase II data (DTED).
CONUS Continental United States
CTA Control Area
CTAF Common Traffic Advisory Frequency
CTLZ Control Zone
DAFIF Digital Aeronautical Flight Information File: The DAFIF database is designed to contain flight information detailing Airports, Heliports, Navigational Aids, Airways (Air Traffic Service) Routes, Airspace Boundaries, Special Use Airspace, Refueling Routes, and Military Training Routes (MTR). DAFIF is produced by NGA.
DMA Defense Mapping Agency (incorporated into NGA)
DME Distance Measuring Equipment
DNC Digital Nautical Chart®
DTED Digital Terrain Elevation Data: a sampling of earth surface elevation values with respect to Mean Sea Level. The nominal sampling density for NGA Level 1 DTED is one sample every 3-arc-seconds in each direction (1 arc second is approximately 31 meters at the equator). The nominal sampling density for NGA Level 2 DTED is one sample every arc second in each direction. DTED has a nominal scale of 1:250 K. The DTED map category of FalconView consists of a rendered image based on elevation data.
DVD Digital Video Disk, or Digital Versatile Disk
DZ Drop Zone
ECIB Enhanced Controlled Image Base: digital imagery that has been orthorectified and projected into the ARC system. ECIB imagery can be color (RGB) or panchromatic and is commonly available at 5, 1 and 0.5 meter resolutions. ECIB is compressed using JPEG 2000.
ECRG Enhanced Compressed Raster Graphics: a set of digitized maps and chart images derived from ADRG or other sources though filtering, compression and reformatting. ECRG uses the ARC system like ADRG. ECRG has a minimum resolution of 254 DPI, the resolution used by ADRG; however, ECRG is compressed using JPEG 2000.
EDP Earliest Descent Point
EOD Erasable-Optical Disk
EP Escape Point
EZ Extraction Zone
FAA Federal Aviation Administration
FAQ Frequently Asked Questions
FIR Flight Information Region
FLD Field
FLIP Flight Information Publications
GARS Global Area Reference System
GeoTIFF Geographic Tagged Image File Format
GL Green Light
GNC Global Navigation Chart: a 1:5 M chart available in CADRG and ECRG.
GPS Global Positioning System: A system which uses signals from four or more satellites to compute the geographic position, elevation, and velocity of the GPS receiver.
Grid Map A map which consists of a Lat-Long grid. The Grid map category consists of grid maps ranging in scale from world overview down to 1:1 K.
GTRI Georgia Tech Research Institute
GUI Graphics Users Interface
HAE Height Above Ellipsoid
HAHO High Altitude High Opening
HALO High Altitude Low Opening
HARP High Altitude Release Point
HSLLADS High Speed Low Level Air Delivery System
HTML Hypertext Markup Languag
HVDE High Velocity Drift Effect
HW Hardware
IAF Initial Approach Fix
IAS Indicated Airspeed
ICAO International Civil Aviation Organization
ICM Image City Map
ICWG Interface Control Working Group
ID Identification
IFR Instrument Flight Rules
IMC Instrument Meteorological Conditions
JMPS Joint Mission Planning System
JNC Jet Navigation Chart: a 1:2 M chart available in CADRG and ECRG.
JOG Joint Operational Graphic: a 1:250 K available in CADRG and ECRG.
LAPES Low Altitude Parachute Extraction System
Lat/Long Latitude/Longitude
LDP Latest Descent Point
LFC Low Flying Chart: a 1:500 K available in CADRG and ECRG.
LLEP Low Level Exit Point
LZ Landing Zone
MATZ Military Aerodrome Traffic Zone
MC Magnetic Course
MCG&I Mapping, Charting, Geodesy & Imagery
MFF Military Free Fall
MGRS Military Grid Reference System
MN Magnetic North
MPS Mission Planning System
MrSID Multi-Resolution Seamless Image Database is a file format compressed imagery and graphical data developed and patented by LizardTech.
MSDC Mariner Specified Deep Contour
MSL Mean Sea Level
MSS Mission Support System
MSSC Mariner Specified Shallow Contour
MTR Military Training Route
NAVAID Navigational Aid
NDB Non-Directional Beacon
NDB-DME Non-Directional Beacon / Distance Measuring Equipment
NGA National Geospatial-Intelligence Agency (formerly NIMA)
NIMA National Imagery and Mapping Agency (obsolete; now called NGA)
NM Nautical Miles
NMEA National Marine Electronics Association
OAP Offset Aim Point: an additional point which can be associated with any type of turn point. The symbol for an OAP is a cross-hair.
OCA Ocean Control Area
OLE Object Linking and Embedding
ONC Operational Navigation Chart: a 1:1 M chart available in CADRG and ECRG.
OPG Operational Planning Graphic
PCMCIA PC Memory Card International Association
PCN Pavement Classification Number
PECP Primary Entry Control Point
PFPS Portable Flight Planning Software
PI Point of Impact
PPC Performance Planning Card
PPR Prior Permission Required
RAM Random Access Memory
RAMZ Rigging Alternate Method Zodiac
Raster Map A digitized chart or satellite image. Products in the raster map category include TIROS, CADRG, ECRG, MrSID, GeoTIFF, CIB and ECIB.
RCO Remote Communication Outlet
RFP Radar Fix Point
RL Red Light
RMC Recommended Minimum Specific GPS/TRANSIT Data
RP Reference Point
S/D Start Descent
SA System Administrator
SA Situational Awareness
SAM Surface-to-Air Missile
SATB Standard Airdrop Training Bundle
SCNS Self Contained Navigation System
SD Slowdown Point
SDK Software Development Kit
SKE Station Keeping Equipment
SOF Special Operations Forces
SRA Special Rules Area
SSDC Ship’s Safety Depth Contour
STTO Start, Taxi, TakeOff: The first turn point in a route.
SUAS Special Use Air Space
SW Software
TACAN Tactical Air Navigation
TACNAV Tactical Navigation
TAFMAP Tactical Air force Map
TAS True Airspeed
TC True Course
TCA Terminal Control Area
TFADS-O Table Formatted Aeronautical Data Set-Obstacles (TFADS-O) is an aeronautical vertical obstructions (VO) dataset produced by NGA.
TFC Transit Flying Chart: a 1:250 K chart available in CADRG and ECRG.
TIROS Television Infrared Observation Satellite: the TIROS maps are a set of small-scale maps derived from a composite image created from the TIROS-N satellite series.
TLM Topographic Line Map: a chart series available in CADRG and ECRG at various scales including 1:50 K and 1:100K.
TN True North
TOLD Take Off and Landing Data
TOT Time Over Target
TP Turn Point: A turn point is a route point which typically indicates a change in direction, but turn points are also used to indicate target locations, air refueling points, and other significant points along the route.
TPC Tactical Pilotage Chart: a 1:500 K chart available in CADRG and ECRG.
UDZL Usable Drop Zone Length
UDZT Usable Drop Zone Time
UIR Upper Flight Information
UTM Universal Transverse Mercator
Vector Map A map comprised of line segments representing islands, lakes, coastlines, rivers, and political boundaries. This data is derived from the micro WDBII data set. The Vector map category consists of vector maps ranging in scale from world overview down to 1:1M.
VFR Visual Flight Rules
VMap Vector Smart Map
VMap0 Vector Smart Map Level 0
VMap1 Vector Smart Map Level 1
VPF Vector Product Format (VPF) is a standard format, structure, and organization for large geographic databases based on a geo-relational data model. MIL-STD-2407 is the Interface Standard for Vector Product format. Vector Smart Map, DNC and World Vector Shoreline are are all VPF datasets.
VIP Visual Initial Point: An additional point which can only be associated with a Target turn point. The symbol for a VIP is a diamond.
VMC Visual Meteorological Conditions
VOD Vertical Obstruction Data
VOR VHF Omnidirectional Range
VOR-DME VHF Omnidirectional Range/Distance Measuring Equipment
VRP Visual Reference Point: An additional point which can only be associated with a Target turn point. The symbol for a VRP is a small circle.
VTG Track Made Good/Ground Speed (data)
VVOD Vector Vertical Obstruction Data
WAC World Area Code
WDBII World Data Bank II: a worldwide data set produced by the CIA. WDBII represents islands, lakes, coastlines, rivers, national boundaries, state boundaries, roads, and railroads as arrays of geographic points. WDBII has a nominal scale of 1:3 M. The state boundaries are only complete for the United States. In addition, the road and railroad data is very incomplete.
WMS Web Map Service
WMTS Web Map Tile Service
WVS World Vector Shoreline
XML Extensible Markup Language
ZAR Zone Availability Report