What is a significant effect of spring tides?

The significant effect of spring tides is characterized by higher high tides and lower low tides. This occurs because spring tides arise during the full moon and new moon phases when the sun, moon, and Earth are aligned. The gravitational forces of both the sun and the moon combine to create a stronger pull on the Earth's waters, resulting in the most extreme fluctuations in tidal levels. Consequently, this leads to the highest highs and the lowest lows in the tidal cycle.

During spring tides, the contrast between high and low water marks is particularly pronounced, making them critical for coastal navigation and understanding sediment transport. Understanding the dynamics of spring tides is essential for hydrographic surveyors, as these tides can greatly influence water level readings and measurements in various marine and coastal activities.