Unit 2430: Physical Oceanography

1. Introduction to Physical Oceanography

• Definition and scope of physical oceanography
• Relationship to other branches of oceanography (chemical, biological, geological)
• Overview of major physical processes in the ocean
• Importance of studying physical oceanography for environmental and societal applications

2. Properties of Seawater

• Physical properties: temperature, salinity, density
• Thermohaline structure and stratification
• Vertical and horizontal variability of properties
• Methods and instruments for measuring seawater properties
• Impact of seawater properties on ocean dynamics

3. Ocean Circulation

• Forces driving ocean circulation: wind stress, temperature gradients, density differences
• The Coriolis effect and its influence on current direction
• Global circulation patterns: gyres, equatorial currents, and deep ocean circulation (thermohaline circulation)
• Regional circulation features (e.g., boundary currents, upwelling zones)
• Role of ocean circulation in heat transport and climate regulation

4. Waves and Tides

• Ocean waves: types (wind waves, swells, tsunamis), generation and propagation
• Wave parameters: wavelength, period, frequency, amplitude
• Tides: forces causing tides, tidal constituents, tidal patterns (diurnal, semidiurnal, mixed)
• Interaction of waves and tides with coastal environments
• Ecological and societal significance of waves and tides

5. Coastal Processes

• Wave erosion and sediment transport mechanisms
• Coastal morphodynamics: beach profiles, barrier islands, estuaries
• Human impacts on coastal processes
• Coastal hazards: storm surge, sea level rise
• Coastal management and sustainable development strategies

6. Ocean-Atmosphere Interactions

• Exchange processes: heat, moisture, and gases between ocean and atmosphere
• Role in weather and climate systems
• Phenomena such as El Niño-Southern Oscillation (ENSO)
• Impact on extreme weather events (hurricanes, cyclones)
• Feedback mechanisms and climate variability

7. Marine Pollution and Human Impacts

• Types and sources of marine pollution: plastics, oil spills, nutrient runoff
• Physical oceanography’s role in pollutant transport and dispersion
• Effects of pollution on marine ecosystems and human health
• Strategies for pollution monitoring and mitigation

8. Remote Sensing in Physical Oceanography

• Overview of remote sensing technologies: satellites, buoys, autonomous floats
• Parameters measured: sea surface temperature, ocean color, sea level, wave heights
• Data acquisition and processing techniques
• Applications in monitoring ocean dynamics and environmental changes

9. Oceanographic Data Analysis

• Types of oceanographic data and data sources
• Statistical methods for data analysis in oceanography
• Use of computer models to simulate ocean processes
• Geographic Information Systems (GIS) for spatial data visualization
• Interpretation and communication of oceanographic findings