Pearl River Estuary Accompanying Water Level Navigation Digital Service Officially Landing

Recently, the Nanhai Navigation Support Center officially launched the digital service for accompanying water level navigation assistance in the Pearl River Estuary, further breaking industry data barriers and addressing the shortcomings of dynamic navigation assistance. This service relies on the new generation of universal maritime data model (S-100), integrating five core digital products to build a standardized digital navigation support foundation that is comprehensive, interactive, dynamically linked, and capable of quantifiable calculations, propelling Pearl River Estuary shipping from "experience-based prediction" to a new stage of "data-driven" intelligence.

Five products working together to form an integrated intelligent navigation assistance system

Unlike single navigation information queries, the accompanying S-100 water level navigation assistance digital service launched this time consists of five S-100 standardized digital products working together to form a multi-element integrated intelligent navigation assistance system. Based on the standardized data foundation of the S-101 electronic chart, each product performs its role and deeply integrates to form a complete digital navigation support capability loop.

S-102 High-Density Bathymetry (Precision Navigation Data Support) achieves full coverage of high-precision bathymetry with a 3-meter grid in the Pearl River Estuary, supporting dynamic iterative updates and effectively solving the problems of sparse traditional bathymetry data, delayed updates, and missing details. Relying on continuous gridded seabed topography data, it fully restores channel shoals, shallow depressions, and micro-topography changes, providing solid data support for scientific route design, bridge navigation clearance calculations, and navigation assessments in restricted waters.

S-104 Navigation Water Level (Dual-Mode Precise Tide Calculation) revolutionizes the traditional single tide prediction model by combining astronomical tide fields with shore-based measured water level station data, enabling all-weather calculations of tide changes at any location. This significantly improves water level accuracy, expands service coverage, enhances scenario adaptability, and ensures safe and orderly tide-assisted navigation, bridge area navigation, berthing operations, and port scheduling around the clock.

S-111 Surface Currents (Dynamic Water Flow Perception) addresses the lack of dynamic flow field data in traditional navigation assistance systems. It provides real-time updates on water flow speed and direction across the entire area, adapting to the complex hydrological conditions of the Pearl River Estuary. This effectively mitigates risks such as vessel drift, loss of ship stability, and berthing deviations, enhancing navigation assistance capabilities in complex water flow environments.

S-129 Under-Keel Clearance Management (Intelligent Safety Risk Control Engine) abandons the traditional manual estimation model and automatically calculates under-keel clearance throughout the journey by combining vessel type, real-time draft, and navigation route. It can visually identify safe and restricted waters, clearly mark navigable boundaries to reinforce safety, accurately calculate navigation time windows, select optimal tide-assisted windows, and optimize navigation efficiency, providing intelligent risk control for safe and efficient vessel navigation.

S-421 Route Service (Full-Process Intelligent Route Planning) deeply integrates data from multiple products, creating a fully coordinated chain of elements to support berth-to-berth intelligent route generation. By systematically integrating chart elements, navigation rules, bathymetry, water levels, and under-keel clearance requirements, it automatically generates compliant, safe, and efficient optimal routes.

Various data products are interconnected and synergized, forming a digital navigation system with S-101 electronic charts as the foundation, integrating S-102 high-density bathymetry, S-104 navigation water levels, and S-111 surface currents. S-129 completes the full-process navigation safety verification and optimal operation window selection, and S-421 ultimately generates compliant, reliable, and scenario-adapted intelligent routes, creating a fully controllable, efficient, and streamlined digital navigation system.

Multi-Scenario Applications

The S-100 water level navigation assistance digital service is precisely adapted to core scenarios such as vessel navigation, pilotage operations, maritime supervision, and port scheduling. It addresses traditional operational shortcomings, achieving safer navigation, more efficient operations, stronger supervision, and more scientific scheduling.

Service for Vessel Navigation: Tailored solutions for safety and efficiency. With the S-100 water level navigation assistance digital service, vessels can accurately grasp channel topography, real-time tide levels, and flow field information, intelligently calculate under-keel clearance, and lock in safe navigation windows. This enables customized navigation solutions for each vessel, effectively avoiding grounding risks, optimizing navigation routes, and reducing operational energy consumption.

Service for Pilotage Operations: Data integration reduces workload, ensuring efficient and secure operations. With the S-100 water level navigation assistance digital service, the pilotage process can automatically integrate high-precision bathymetry data, dynamic water levels, and risk control data, visually presenting the overall navigation situation. Pilots can quickly optimize routes, accurately identify navigation risks, adapt to real-time hydrological conditions, simplify manual judgment processes, and achieve efficient, standardized, and secure pilotage operations.

Service for Maritime Supervision: Proactive risk prediction enables active risk control. With the S-100 water level navigation assistance digital service, regulatory authorities can monitor navigation status in real time across the entire area, fully leveraging ship-to-shore data linkage capabilities. In key waters and large vessel operations, it facilitates scientific navigation order management and proactive risk mitigation, upgrading maritime supervision to a predictive and proactive intelligent regulatory model.

Service for Port Scheduling: Accurate window assessment improves turnaround efficiency. With the S-100 water level navigation assistance digital service, ports can determine safe operation windows based on real-time tide and water flow changes, scientifically optimize vessel entry and exit sequences, and berth allocation, significantly enhancing port scheduling precision and turnaround efficiency.

The S-100 accompanying water level navigation assistance digital service is a mature digital navigation support solution that has been tested in practice, deployable, and reusable. The product has undergone multiple rounds of shore-based simulation exercises and extensive real-ship sea trials, ensuring reliable data accuracy, stable operation, and strong scenario adaptability. It is now fully compatible with mainstream domestic shipborne navigation equipment, specialized pilotage operation terminals, and other frontline operational platforms. In the future, it will continue to focus on the entire shipping business chain, deeply covering all-scenario digital needs for navigation, pilotage, scheduling, and supervision, continuously injecting strong digital momentum into the quality improvement, efficiency enhancement, and transformation of smart shipping in the Pearl River Estuary and the South China region.

Invitation to Relevant Parties to Join S-100 Product Real-Ship Sea Trials

To collaboratively refine a standardized and intelligent navigation support service system, we now invite ship navigation equipment manufacturers, shipping companies, maritime regulatory authorities, port management units, and other relevant parties to join the S-100 product real-ship sea trials. Cooperation inquiry hotline: 020-89320606.

All parties can log in to the Pearl River Estuary Smart Navigation Support Service Experimental Zone to submit account applications at https://enav.nhhb.org.cn/nbwebgis/zjk/index.html. Upon approval, they can experience the S-100 water level navigation assistance digital service online and download supporting test sample data.

Additionally, all parties can contact the Guangzhou Maritime Surveying and Mapping Center's new digital navigation support simulation quality inspection platform to conduct immersive simulated navigation tests under the S-100 standard system, comprehensively verifying the adaptability and practicality of the S-100 water level navigation assistance digital service.