Lecture Outline



5.1 Introduction

5.2 Distribution of Land and Water in Earth

5.3 Fresh Water

5.4 Cryosphere

5.5 Oceans and Seas

5.6 Oceans of the World

5.7 Maritime Zones

5.8 Relief of Ocean

5.9 Ocean Temperature

5.10 Salinity of the Ocean

5.11 Ocean Movements

5.12 Thermohaline Circulation



Learning Objectives



To Understand the importance of hydrosphereAcquire knowledge on evolution of ocean and ocean relief featuresAppreciate the ocean movements and their influence on earth's climate

5.1 Introduction

90% of world's fresh water is in Antarctica 85% of world's population lives in the driest half of the planet Water is the most common substance found on earth, and very important for all organisms. Hydrospheres includes the water on the surface, below the surface and the water in atmosphere. Surface - Oceans, rivers, lakes & glaciers Below - Ground water Atmosphere - Clouds & moisture - All three forms Total amount of water in earth doesn't change over time. Constantly in motion w…