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LD ES - Ch 9
LD Earth Science - Chapter 9 - The Water Cycle and Climate
Term | Definition |
---|---|
Adiabatic | Change in the temp. of a gas by expansion or compression |
Angle of insolation | Angle of sun above the horizon |
Capillarity | Ability of a soil to draw water upwards into tiny pores |
Capillary water | Water held within the aerated zone of the soil above the water table |
Climate | Average weather conditions over many years |
Continental climate | Climate in which there are large seasonal changes in temp. due to absence of nearby bodies of water that could moderate the climate |
Duration of insolation | Length of time from sunrise to sunset that the sun is in the sky |
El Nino | Conditions in the Pacific Ocean when seasonal upwelling of deep equatorial water does not follow its usual pattern (can lead to unusual weather) |
Greenhouse effect | Process by which infrared heat waves are trapped in the Earth's atmosphere by gases such as CO2 and Methane |
Greenhouse gases | Gases that trap heat in Earth's atmosphere and affect Earth's climates |
Groundwater | Water that infiltrates the ground |
Infiltrate | Water that seeps into the ground |
Insolation | Electromagnetic energy that Earth receives from the sun; "Incoming solar radiation" |
Insolation-temperature lag | Time delay between max or min insolation and max or min air temp. |
Leeward | Downward side of mountain range (usually with less precipitation) |
Maritime climate | Climate in which seasonal temp. changes are moderated by a large body of water |
Permeability | Ability of soil to transmit H2O |
Planetary wind belts | Latitude zone of prevailing wind conditions caused by uneven heating of Earth and its rotation |
Porosity | Portion/Percent of empty space within fractured rock or soil |
Radiative balance | Equilibrium between absorbed radiant energy and radiant energy given off |
Reflected | Process by which energy waves bounce off a surface or interface |
Runoff | Precipitation that is unable to infiltrate soil, so it moves toward streams |
Transpiration | Process by which living plants release water vapor top the atmosphere |
Vertical ray | Sunlight that strikes the Earth from directly overhead |
Water Cycle | Hydrologic Cycle; , The continuous movement of water from Earths surface to the atmosphere to the land and back to the surface |
Water Table | Boundary at the top of the saturated zone within fractured bedrock or soil |
Watershed | Drainage Basin; The geographic area in which water drains into a particular body of water |
Windward | Side of the mountain range where air is forced to rise; Leading to cloud formation and precipitation |
Zone of aeration | Soil above the water table in which most of the inter connected pores are filled with air |
Zone of saturation | Fractured rock or soil below the water table in which the pores are filled with groundwater |