Create exactly 10 professional academic and technical presentation slides about: “OCEAN TIDES AND TIDAL DATA IN HYDROGRAPHIC SURVEYING” This is Part 1 of a 4-part presentation. Maintain a consistent professional hydrographic surveying / ocean engineering visual style that can be continued in the next parts. Target audience: Hydrographic Surveyors, Marine Construction Surveyors, Ocean Engineers and Engineering Students. Use concise technical text, high-quality oceanographic visuals, scientific diagrams, charts and professional layouts. Avoid generic stock-style presentation designs. Slides: 1. Title Slide Ocean Tides and Tidal Data in Hydrographic Surveying Subtitle: Principles, Tidal Generation and Hydrographic Applications 2. Presentation Objectives Explain the objectives and what the audience will learn about tides and their importance in hydrographic surveying. 3. What Are Ocean Tides? Define tides, tidal rise and fall, high water, low water and tidal range. 4. Why Do Tides Occur? Explain the physical mechanism responsible for tides, including gravitational attraction and Earth's rotation. 5. Earth–Moon System Explain the relationship between Earth and Moon and how lunar gravity affects ocean water. 6. Gravitational Forces Explain lunar gravitational force and its relationship to tidal effects. 7. Tidal Bulges Create a clear scientific diagram showing the two tidal bulges around Earth and explain why they occur. 8. The Role of the Sun Explain how solar gravity contributes to tides and how its influence compares with the Moon. 9. Moon vs Sun Create a visual comparison of lunar and solar tidal influence. 10. Spring and Neap Tide Introduction Introduce the concepts of spring tides and neap tides and prepare the audience for detailed discussion in Part 2. Visual requirements: - Include an Earth–Moon tidal bulge diagram. - Include a Sun–Earth–Moon alignment illustration. - Use oceanographic imagery where appropriate. - Include at least one clear scientific diagram every 2–3 slides. - Keep slides visually rich but not overcrowded. - Use accurate scientific terminology. - Do not invent scientific data. - Add short speaker-note style explanations when useful.