I understand a Tidal Cycle (new moon to new moon) averages about 29 Days 12 Hours 44 Minutes and 2.8 Seconds.

It would therefore be reasonable to assume that the average time from Spring Tide to Neap Tide and vice versa will be 25% of the above (about 7 days 9 hours.

As all the above refers to "averages" what I would really like to know is what is the shortest and longest possible time of a tidal cycle. Also what is the shortest possible time from Spring Tide to Neap Tide and from Neap tide to Spring Tide.

I have been unsuccessful searching the internet.

Look forward to reply.

Thank You

Mike

To determine the shortest and longest possible times for a tidal cycle, as well as the shortest time from Spring Tide to Neap Tide and vice versa, we can use the following information:

1. Tidal Cycle: The average duration of a tidal cycle, as you mentioned, is about 29 days 12 hours 44 minutes 2.8 seconds.

Shortest Possible Tidal Cycle:
To find the shortest possible time for a tidal cycle, we need to consider the factors that affect the tides. The primary influencers are the gravitational pull of the moon and the sun, the alignment of the Earth, moon, and sun, and the topography of the region.

The alignment of celestial bodies can vary, leading to different tidal patterns. For the shortest possible time, we would need a combination of factors that amplify the tidal effect. This could occur if the moon is at its closest point to the Earth (perigee), the sun is also aligned in a way that enhances the tidal forces (e.g., during a solar eclipse), and the topography of the region further accentuates the tides (e.g., funnel-shaped bays or estuaries).

Determining the exact shortest possible tidal cycle would require complex calculations and specific regional data. It is challenging to provide a definitive answer without specific geographical information.

Longest Possible Tidal Cycle:
Similarly, the longest possible time for a tidal cycle depends on the same factors mentioned above but in the opposite configuration. If the moon is at its farthest point from the Earth (apogee), the sun is not aligned in a way that enhances tidal forces, and the topography of the region minimizes the tides, it would result in a longer tidal cycle. Again, providing an exact value without regional details is difficult.

2. Spring Tide to Neap Tide:
The period from Spring Tide to Neap Tide (and vice versa) is approximately 7 days 9 hours, as you estimated. This corresponds to roughly one-quarter of the average tidal cycle.

Shortest Possible Time from Spring Tide to Neap Tide:
The shortest possible time from Spring Tide to Neap Tide would occur when the alignment of the Earth, moon, and sun is such that the tidal bulges caused by their gravitational forces cancel each other out quickly. Determining the exact shortest time would depend on the specific alignment and is difficult to estimate without additional information.

It's worth noting that the timescales mentioned here are approximate and can be influenced by local geographical and environmental factors specific to a particular location. For accurate and detailed information about tidal patterns in a specific area, it's recommended to consult reliable regional tide charts or contact local authorities responsible for monitoring tides, such as the National Oceanic and Atmospheric Administration (NOAA) in the United States or similar organizations in other countries.

If you have access to detailed information about a specific location, it may be better to consult coastal or tidal experts who can provide more precise insights based on local conditions.