1. What is Elevation Above Bottom?

Elevation above the Bottom refers to the height or depth of an object or feature above the seabed or ocean floor. In hydrostatic wave theory, it's calculated based on pressure measurements and water properties.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( y \) — Elevation above the Bottom (Meter)
• \( p \) — Pressure Under Wave (Pascal)
• \( \rho_s \) — Density of Salt Water (kg/m³)
• \( g \) — Gravitational acceleration (9.80665 m/s²)
• \( y_s \) — Ordinate of the Water Surface (Meter)

Explanation: The formula calculates the elevation above the seabed by considering the hydrostatic pressure relationship and the water surface position.

3. Importance of Elevation Calculation

Details: Accurate elevation calculation is crucial for coastal engineering, underwater construction, marine navigation, and understanding wave dynamics in oceanography.

4. Using the Calculator

Tips: Enter pressure in Pascals, density in kg/m³, and water surface ordinate in meters. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical density of salt water?
A: Seawater density typically ranges from 1020 to 1030 kg/m³, depending on salinity and temperature.

Q2: How is pressure under wave measured?
A: Pressure is typically measured using underwater pressure sensors or transducers placed at specific depths.

Q3: What is the ordinate of the water surface?
A: It's the vertical distance measurement of the water surface relative to a reference point, often measured from still water level.

Q4: Are there limitations to this calculation?
A: This formula assumes hydrostatic conditions and may have limitations in dynamic wave environments with significant vertical accelerations.

Q5: Can this be used for freshwater applications?
A: Yes, but you would need to use the appropriate density value for freshwater (approximately 1000 kg/m³).