Topic – Part of static series under the heading – “ Ocean – Salinity”
6) Account for variation in ocean salinity and discuss its impacts?(250 words)
GC Leong Physical Geography Ch 12
Key demand of the question
Write about salinity in the ocean, its variation. Next, explain the factors affecting variation in oceans salinity. Write about variation in salinity both in terms of latitudinal change and change with depth. Discuss the impact of such variations in salinity
Directive word
Discuss – Here your discussion should bring out the impact of variations in ocean salinity on water cycle, ocean circulation and climate.
Structure of the answer
Introduction – Explain what ocean salinity is and how it varies with latitudinal variations and depth.
Body
- Discuss the factors affecting changes in ocean salinity – precipitation and evaporation, enclosed or not etc
- Discuss the impact of such variations. Highlight the impact of increasing salinity on water cycle, on physiographic factors like density and how that impacts the movement of current, on climate such as in the case of el nino etc
