Chapter 11 of 31
Revision Notes
Ocean salinity and temperature — Revision Notes
Telangana Open School (TOSS) · Class 12 · Geography
Ocean salinity and temperature revision notes for Telangana Open School (TOSS) Class 12 Geography: 3 topics in quick points.
53 questions30 flashcards4 concepts
Interactive on Super Tutor
Studying Ocean salinity and temperature? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.
Free trial, no card needed.
Key Topics to Revise
1
Oceanic Temperature
- Ocean water temperature is influenced by latitude, season, and depth.
- Temperature decreases from the equator towards the poles due to the angle of solar insolation.
- Surface temperature in equatorial regions ranges from 27°C to 28°C, while polar regions can be near freezing.
2
Oceanic Salinity
- Salinity refers to the amount of dissolved salts in seawater, expressed in parts per thousand (ppt).
- Average ocean salinity is 35 ppt (35 grams of salt per 1 kg of seawater).
- Main salt is Sodium Chloride (NaCl), making up about 77.8% of total dissolved salts.
3
Distribution Patterns
- Horizontal temperature distribution decreases from equator to poles.
- Northern Hemisphere oceans are warmer due to less water coverage compared to the Southern Hemisphere.
- Vertical temperature profile: rapid drop in thermocline, then stable in deep zone.
Get complete notes with diagrams and examples
Full NotesKey Concepts
Ocean temperature refers to the degreeAs depth increasesSalinity is the amount of dissolvedEvaporation increases salinity by removing water
Frequently Asked Questions
What are the important topics in Ocean salinity and temperature for Telangana Open School (TOSS) Class 12 Geography?
Key topics in Ocean salinity and temperature include Oceanic Temperature, Oceanic Salinity, Distribution Patterns. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Ocean salinity and temperature for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 53 practice questions on Ocean salinity and temperature. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Ocean salinity and temperature
For serious students
Get the full Ocean salinity and temperature chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Telangana Open School (TOSS) Class 12 Geography. Free to start, no card needed.