GGR206H1 Lecture Notes - Vadose Zone, Greenhouse Gas, Shortwave Radiation
Document Summary
Physical hydrology: movement and physical properties of water on and below the earth"s surface (without ocean currents) Water table: water from the ground rises to the pit. Ground water: water stored under saturated zone. Unsaturated zone: below land pores of soil contains water and air. 2. 5% of all available water is fresh water: 69% polar ice, 30% ground and 1% surface water, soil water and atmospheric water. Greenhouse gas: atmosphere and most important in establishing earth"s climate. Greenhouse gases with water vapour (h20) carbon dioxide allows the earth"s warming to pass through shortwave radiation but absorb longwaves through radiation emitted by the earth"s surface. Effectively sets the air temperature to 15 degrees celsius: greenhouse effect. Enhanced greenhouse effect: out of control warming of the earth. Evaporation: change of liquid water to gas. Evaporation of the ocean; leaving salts in the ocean causing water vapour, cloud droplets and precipitation. Many scientists believe global warming is speeding up the hydrological cycle.
