What is the average range of tidal variations?

The average range of tidal variations typically falls between 0 meters to 15 meters in many coastal areas around the world, with regional differences influenced by geographical features and tidal patterns. This range encompasses most locations and accounts for varying amplitudes in tidal fluctuations based on gravitational forces from the moon and sun, as well as local factors such as the configuration of the coastline and the seafloor topography.

Understanding the context of tidal variations is crucial for hydrographic surveying, as these variations can significantly impact water levels and, consequently, the accuracy of depth measurements. By recognizing that tides can indeed fluctuate within this range, surveyors can better plan their operations around expected tidal changes, ensuring data collected is reflective of the true underwater conditions during surveying.

Additionally, while some regions may experience larger tidal ranges, particularly in areas with specific hydrodynamic conditions, the most practical and general reference for average tidal ranges in hydrographic studies aligns with the selected answer.