S-104 stands for Water Level Information for Surface Navigation Product Specification), also known as S-104 Navigation Level (S-104 Water Level Information for Surface Navigation ), It is a time-varying tidal level information product, which is specially used for surface navigation. It records water level data and related metadata at different times in a specific geographical area.

The basic content of S-104 data includes: point (a specific location), time (a specific time of water level observation or prediction), water level value (water level height at that time), and water level trend (for example, whether the water level rises or falls). This data format is ideal for describing water levels at a particular time and place.

S-104 data has many important uses in practical applications, especially in navigation and port management, such as:

• Navigation in and out of the

  harbor: Use S-104 data to predict changes in tide levels to help ships choose the right time to enter and leave the harbor and avoid running aground at low tide.

• Channel planning and management: In complex or shallow waters, S-104 data can help port managers and mariners dynamically adjust channel planning to ensure safe passage of ships under different tidal conditions.

• Environmental monitoring and research: S-104 data can also help researchers analyze the impact of climate change on tides or monitor shoreline erosion, helping to study changes in the marine environment.

S-104 Navigation Water Level Diagram

SuperMap iMaritimeEditor supports importing S-104 navigation levels. In this section, you will learn the following:

• Open S-104 data : Describes how to import *.h5 files that follow the S-104 product specification.
• Water depth query : It introduces how to inquire the water depth value of S-104 navigation water level.