Kernow Hang Gliding & Paragliding Association

 Air rising from the ground
 The jet stream.
 Weather fronts.
 Heat from the sun.

 the tropopause.
 the troposphere.
 the atmosphere.
 the stratosphere.

 rising air is twisted clockwise.
 a warm and cold front combine to form an occluded front.
 a weather system moves from West to East.
 rising air is twisted anticlockwise.

 differing densities.
 differing directions.
 differing speed.
 differing humidity

 Lowering cloudbase, rising temperature, cool day
 Pressure initially falls then rises, warm day, wind veers by about 90 degrees.
 Increasing virga or rain, backing then veering wind, cool day
 Steadily falling pressure, front moves at about 15mph, preceded by cirrus clouds

 a = 1 b = 2 c = 4 d = 3
 a = 3 b = 2 c = 4 d = 1
 a = 4 b = 2 c = 1 d = 3
 a = 2 b = 3 c = 4 d = 1

 Air temp-dew point x400
 Air temp x dew point – 400
 Air temp +400 x dew point
 Air tempx400-dew point.

 Temperature.

 Pressure.
 Density.
 All three

 A thermal.
 An inversion layer.
 An isothermal layer.
 Latent heat.

 ELR is lower than the DALR.
 ELR is the same as the DALR.
 SALR is equal to the DALR.
 ELR is greater than the DALR.

 Its temperature at cloudbase.
 Its trigger point.
 Its temperature on the ground.
 Its diameter.

 A low pressure system is a Cyclone and rotates clockwise.
 Air rises in a high pressure system.
 Air rises in a depression.
 The jetstream is the propagator of pressure systems.
 Polar maritime airmasses come from Scandinavia.
 Weather fronts are drawn where they meet the ground.
 On a weather map a trough is shown by a line of Vs.
 Geostrophic wind points towards the centre of a Low.
 Surface winds in a High point away from the centre.
 Lenticular clouds are stationary.

 a = 4 b = 3 c = 1 d = 2
 a = 3 b = 1 c = 2 d = 4
 a = 2 b = 3 c = 4 d = 1
 a = 2 b = 1 c = 4 d = 3

 a = W, b = SW
 a = NE, b = E
 a = E, b = NE
 a = SW, b = W

 Towards the centre of a depression.
 Outwards from a cyclone.
 Towards an anticyclone.
 In a uniform direction.

 Cumulus
 Cirrus
 Orographic
 Stratus

 The point where rain begins to fall.
 The point defining the maximum height of a thermal.
 The point defining the start of an inversion.
 The temperature at which the air becomes saturated.

 Cold, wet and mostly stratus type clouds.
 Cold, clear, unstable and high cloudbase.
 Rising temperatures, intemittent drizzle and cirrus clouds.
 No thermal activity, strong winds and heavy rain in all areas.

 Wind is blowing along the coast.
 The sea breeze first makes landfall.
 The cold air from the sea meets the warmer air from the land.
 A line of cumulus clouds form about 5 miles out to sea.

 Light wind, no precipitation and fair weather cumulus.
 A band of rain just out to sea and a thin layer of stratus cloud inland.
 A line of cumulus cloud perpendicular to the boundary formed by the sea and the coast.
 Vigorous cumulus clouds parallel to the coast with curtain cloud beneath it and very little cumulus to the seaward side.

 Where stable moist air flows over series of hills.
 When moist air is lifted over an obstruction forming cloud at its dew point.
 When air is cooled as it is lifted by thermal activity.
 At the point of an occluded front.