OUR SERVICES

Aeronautical Survey (WGS-84)

High-precision geodetic surveys, DGPS airport control networks, obstacle mapping, and ICAO-compliant cartography for global aviation.

01 OVERVIEW

Precision Geodetic Surveys for Global Aviation

The World Geodetic System – 1984 (WGS-84) is the mandatory common geodetic reference frame established by ICAO for all international civil aviation navigation. Accurate geodetic survey data is the foundational cornerstone for procedure design, terrain awareness systems, and aerodrome safeguarding.

GACS deploys professional survey teams equipped with high-precision dual-frequency GNSS and Differential GPS (DGPS) satellite receivers to establish aerodrome geodetic control networks, survey all runway entities and navigation aids, and map obstacles across terminal approach corridors in full compliance with ICAO Doc 9674.

✓ ICAO Doc 9674 Compliant
✓ High-Precision DGPS / GNSS
✓ Sub-Centimeter Accuracy
✓ Full AIP Chart Generation
Aeronautical Survey (WGS-84)
DATUM: WGS-84
HORIZ: ±0.5m
VERT: ±0.25m
ICAO DOC 9674
02 SCOPE OF SERVICE

Comprehensive Aeronautical Geodetic Survey Capabilities

From monumented ground networks to precision obstacle capture, our geodetic services deliver certified aeronautical coordinates.

Aerodrome Geodetic Control Network

Establishing permanent, monumented ground control networks tied directly to the International Terrestrial Reference Frame (ITRF/WGS-84).

Runway & Navaid Positioning

High-accuracy 3D positioning of runway thresholds, centerlines, stopways, taxiways, apron stands, DVOR, DME, and ILS antennas.

Obstacle Survey & Clearance Areas

Systematic mapping and vertical measurement of man-made and natural obstacles across take-off climb and approach funnels.

AIP Charting & Topographic Mapping

Producing ready-to-publish ICAO Type A, Type B, Aerodrome Ground Movement, and Precision Approach Terrain Charts.

OUR PROCESS

From Satellite Geodesy to Certified Aeronautical Datasets

A proven, mathematically validated geodetic survey methodology adhering to ICAO quality assurance standards.

01

Geodetic Reconnaissance & Monumentation

Site inspection, establishing permanent survey monuments, and designing baseline GNSS network geometry.

02

Static GNSS Network Observations

Conducting long-duration dual-frequency satellite observations linked to global IGS/ITRF reference stations.

03

Airfield Features & Obstacle Mobile Survey

Precision RTK/DGPS kinematic and total station surveys of all aerodrome physical infrastructure and critical obstacles.

04

Geodetic Processing & Three-Part Reporting

Rigorous baseline adjustments, ellipsoidal/orthometric height transformations, and standard ICAO three-part survey reports.

04 TYPICAL DELIVERABLES

ICAO-Compliant Survey Reports, CAD Geometries & AIP Charts

All survey outputs adhere strictly to ICAO Doc 9674 specifications and quality requirements:

✓ Comprehensive three-part Aeronautical Survey Report compliant with ICAO Doc 9674
✓ Monumented Aerodrome Geodetic Ground Control Network coordinates and description sheets
✓ Complete 3D AutoCAD and GIS spatial datasets of all surveyed airfield features and obstacles
✓ ICAO Aerodrome Obstacle Charts — Type A (Operating Limitations) and Type B (Comprehensive)
✓ Precision Approach Terrain Charts (PATC) for ILS Cat II/III operations
✓ Quality assurance documentation, coordinate transformation parameters, and integrity checks
Aviation Charts and Technical Documentation
STANDARDS & GUIDANCE

Meeting Highest Global Geodetic Standards

Surveys are executed strictly following ICAO Doc 9674 (WGS-84 Manual), ICAO Annex 4 (Aeronautical Charts), and ICAO Annex 15 (Aeronautical Information Services).

DOC 9674
ANNEX 4
ANNEX 15
GET IN TOUCH

Require Certified WGS-84
Aeronautical Survey Data?

Contact GACS to deploy our specialized geodetic team for aerodrome surveys, obstacle mapping, and official AIP chart generation.