One national height system
for the United Arab Emirates
A single portal for the unified UAE National Vertical Datum (UAE-NVD): convert legacy Emirate heights, relate port Chart Datums to the new national LAT surface, transform coordinates in UAE_GRF2024, and browse the national benchmark and tide-gauge network.
Portal tools
Each tool demonstrates a software deliverable of the Unification of the UAE Vertical Datum project (FGIC RFP-2026).
National geodetic network
500 levelling benchmarks and 20 coastal tide gauges in one queryable database — every station with its heights in all vertical systems.
Height conversion
Legacy Emirate datums ↔ UAE-NVD ↔ UAE_GRF2024 ellipsoidal heights, with uncertainty reporting and validity warnings. Single point or CSV batch.
Chart Datum at ports
Relate each port's legacy Chart Datum to the new national LAT-based Chart Datum, MSL (epoch 2024.0), UAE-NVD and the ellipsoid.
3D coordinate transformation
Geographic, geocentric Cartesian, UTM 39N/40N and legacy DLTM — single point or CSV batch.
REST API
Every conversion in this portal is also a documented JSON endpoint, ready for GIS and engineering-software integration.
About this demonstration
How each tool maps to the technical proposal, and which values are synthetic versus physically real.
Delivered by three partners
The Unification of the UAE Vertical Datum is proposed by a consortium combining local delivery capability with international geodetic expertise.
Why a unified vertical datum
Each Emirate historically maintained its own levelling datum — Abu Dhabi's Ras Ghumais MSL datum, Dubai's Port Rashid LAT-based system, and independent local networks elsewhere. The UAE-NVD replaces them with one national surface at epoch 2024.0, anchored to mean sea level at the national tide gauges and connected to UAE_GRF2024 through a gravimetric geoid model. This portal shows how legacy heights, chart datums and modern GNSS heights all meet in that single system.