The Global & Local Storage and Flow of Water AICE EM: Hydrosphere Key Content 1

The Global & Local Storage and Flow of Water The main storage zones of water and the percentages of water held in each. The natural flows and stores within both the global and local (drainage basin) cycles. The global system includes the transfer between ocean/seas, atmosphere and land; it should refer to the conditions under which the volume of solid, liquid, and gaseous water will change. The local water cycle includes evaporation, precipitation, interception, runoff, infiltration, and ground water. Ground water stores are to include the features of natural aquifers: confined, unconfined and perched.

Properties of Water Do you know all 6? Do you know why they exist? Can you give examples? Solubility Dissolves polar substances Cohesion Adhesion Temperature Moderation High heat carrying capacity Cools surfaces via evaporation Density of Ice } Capillarity

Do you even know what all these terms mean? Hydrological Cycle Did your picture include these terms? Evaporation Precipitation Condensation Interception Runoff Infiltration Ground water Percolation Transpiration Storage Water table Recharge area Create the BIG picture of the water cycle. Include the interaction of water with the Atmosphere & Lithosphere Did your picture include these items? Ocean/sea, atmosphere, land, rivers, aquifer Confined, unconfined & perched aquifers Porous & impermeable rock Do you even know what all these terms mean?

Flowing artesian well Well requiring a pump Water table Unconfined Aquifer Recharge Area Evaporation and transpiration Evaporation Precipitation Confined Recharge Area Runoff Flowing artesian well Well requiring a pump Stream Figure 13.3 Natural capital: groundwater system. An unconfined aquifer is an aquifer with a permeable water table. A confined aquifer is bounded above and below by less permeable beds of rock, and its water is confined under pressure. Some aquifers are replenished by precipitation; others are not. Water table Infiltration Lake Infiltration Unconfined aquifer Less permeable material such as clay Confined aquifer Confining impermeable rock layer Fig. 13-3, p. 316

Example of a Drainage Basin

Balancing Act Water enters a drainage basin (aka watershed) Water leaves the drainage basin Naturally Effect of human activities

States of Water

Oceanic Currents