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High-precision geodetic surveys, DGPS airport control networks, obstacle mapping, and ICAO-compliant cartography 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.
From monumented ground networks to precision obstacle capture, our geodetic services deliver certified aeronautical coordinates.
Establishing permanent, monumented ground control networks tied directly to the International Terrestrial Reference Frame (ITRF/WGS-84).
High-accuracy 3D positioning of runway thresholds, centerlines, stopways, taxiways, apron stands, DVOR, DME, and ILS antennas.
Systematic mapping and vertical measurement of man-made and natural obstacles across take-off climb and approach funnels.
Producing ready-to-publish ICAO Type A, Type B, Aerodrome Ground Movement, and Precision Approach Terrain Charts.
A proven, mathematically validated geodetic survey methodology adhering to ICAO quality assurance standards.
Site inspection, establishing permanent survey monuments, and designing baseline GNSS network geometry.
Conducting long-duration dual-frequency satellite observations linked to global IGS/ITRF reference stations.
Precision RTK/DGPS kinematic and total station surveys of all aerodrome physical infrastructure and critical obstacles.
Rigorous baseline adjustments, ellipsoidal/orthometric height transformations, and standard ICAO three-part survey reports.
All survey outputs adhere strictly to ICAO Doc 9674 specifications and quality requirements:
Surveys are executed strictly following ICAO Doc 9674 (WGS-84 Manual), ICAO Annex 4 (Aeronautical Charts), and ICAO Annex 15 (Aeronautical Information Services).
Contact GACS to deploy our specialized geodetic team for aerodrome surveys, obstacle mapping, and official AIP chart generation.
Providing specialised aviation consultancy services and software to support safe, efficient and compliant aviation development worldwide.
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