Introduction to Water Systems

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Presentation transcript:

Introduction to Water Systems Significant ideas: The hydrological cycle is a system of water flows and storages that may be disrupted by human activity. The ocean circulatory system (conveyor belt) influences the climate and global distribution of water (matter and energy) Whale shark (Rhincodon typus) off Din Daeng , Thailand . It is a slow-moving filter feeding shark and the largest known fish species in existence. It follows the warm ocean currents that are rich with plankton.

From a distance, the Earth is a blue planet. 70% of the surface is covered with water.

97% of the Earth’s water is salt water Less than 3% is fresh water 66% of all fresh water is trapped in glaciers, icebergs, snow Less than 1% of the fresh water is available for human use

97% of the water on the planet is salt water.

4.1 U.1 Solar radiation drives the hydrological cycle. Starter: Using these words to label the water (hydrological) cycle diagram on the worksheet Highlight the storages and flows in different colours Ocean Surface run-off Precipitation Percolation Transport River Discharge Evapotranspiration Evaporation Melting Stream flow Infiltration Advection Ice and Snow Soil Groundwater (aquifer) Organisms Glaciers Lake Sublimation Freezing Condensation

4.1 U.1 Solar radiation drives the hydrological cycle.

Using the Internet Find out the definitions of the following: 4.1 U.3 and U.4 Storages and flows Using the Internet Find out the definitions of the following: Precipitation Evapotranspiration Infiltration Surface runoff Groundwater Percolation Advection

4. 1 U. 2 Fresh water makes up only a small fraction (approximately 2 4.1 U.2 Fresh water makes up only a small fraction (approximately 2.6% by volume) of the Earth’s water storages.