chapter 11: ascending and descending air
DESCRIPTION
Chapter 11: Ascending and Descending Air. Different weathers. Do you know the difference?. Chapter 11: Main Details. Low pressure systems: Recognise on a weather map Also known as…. Weather of a Low High pressure systems: Recognise on a weather map Also known as…. Weather of a High - PowerPoint PPT PresentationTRANSCRIPT
Chapter 11: Ascending and Descending AirDifferent weathers
Low Pressure Systems High Pressure Systems
Low Pressure: Also known as:• Lows• Depressions• Cyclones(Pressure is lowest in the centre)
High Pressure: Also known as:• Highs• Anti-cyclones
(Pressure is highest in the centre)
Weather of a low pressure system:Strong Winds (blowing in towards the centre)Much cloud (caused by warm air rising and condensation)Much Precipitation (condensation causes clouds which usually leads to rain.)
Weather of a high pressure system:Light winds (blow away from the centre)No cloud (no ascending air, no condensation, no cloud)Dry weather (less clouds = less rain)
Do you know the difference?
Chapter 11: Main DetailsLow pressure systems:• Recognise on a weather map• Also known as….• Weather of a Low
High pressure systems:• Recognise on a weather map• Also known as….• Weather of a High
WeatherClimateAir MassFrontPolar FrontIsobarsMillibars