Define: Mean Low Tide

Mean Low Tide
Mean Low Tide
Quick Summary of Mean Low Tide

Mean low tide is the average level of the lowest point of the tide over a specific time period. Tides occur when the gravitational pull of the sun and moon causes the rise and fall of seawater. Mean low tide is significant for determining the boundary between land and sea. It should be noted that mean low tide is distinct from neap tides and spring tides, which can be either lower or higher than average depending on the positions of the moon and sun.

Full Definition Of Mean Low Tide

The mean low tide refers to the average of all low tides during a specific timeframe and is used to define the upland boundary of a shore. For instance, if a beach experiences two low tides per day, the mean low tide would be calculated by averaging the lowest points of those two tides over a set period. This measurement is crucial for establishing property lines and adhering to building codes near water bodies. Additionally, sailors and boaters rely on the mean low tide to safely navigate in shallow waters.

Mean Low Tide FAQ'S

Mean low tide refers to the average lowest level of the ocean’s water surface at a specific location over a period of time, usually calculated over a 19-year cycle known as the Metonic cycle.

Mean low tide is determined by measuring the water level at a specific location over a long period of time, usually using tide gauges or satellite data. The average of these measurements is then calculated to determine the mean low tide.

Mean low tide is important for various legal purposes, such as determining property boundaries, coastal development regulations, and navigational rights. It helps establish the extent of private property rights and public access to coastal areas.

Yes, mean low tide can change over time due to various factors, including sea level rise, coastal erosion, and geological changes. It is important to regularly update mean low tide measurements to account for these changes.

Jurisdiction over mean low tide typically falls under the authority of the government, usually at the state or federal level, depending on the specific country’s legal framework. Different jurisdictions may have different regulations regarding mean low tide.

In some cases, private property rights can extend beyond mean low tide, depending on the laws and regulations of the jurisdiction. However, this can vary, and it is important to consult local laws and seek legal advice to determine the extent of private property rights.

In many jurisdictions, the public has the right to access areas below mean low tide, commonly referred to as the “public trust doctrine.” However, the specific regulations regarding public access can vary, and it is important to consult local laws to understand the rights and restrictions.

Yes, mean low tide can significantly impact coastal development projects. Regulations often require setbacks and restrictions on construction activities below mean low tide to protect the environment and ensure public access to coastal areas.

Yes, mean low tide can affect navigational rights, especially in areas with shallow waters. It is important for mariners to be aware of mean low tide levels to ensure safe navigation and avoid grounding or other navigational hazards.

Yes, mean low tide can be subject to disputes, especially in cases where property boundaries or access rights are involved. In such situations, legal experts, surveyors, and scientific data may be used to resolve the dispute and determine the accurate mean low tide level.

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This site contains general legal information but does not constitute professional legal advice for your particular situation. Persuing this glossary does not create an attorney-client or legal adviser relationship. If you have specific questions, please consult a qualified attorney licensed in your jurisdiction.

This glossary post was last updated: 17th April 2024.

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