atpl/oxford/met/ch6 Flashcards
Throughout the 24 hrs of a day the Relative Humidity can be expected to:
Reduce during the day and increase at night.
During a night with a clear sky, surface temperature will ____________ RH will______________ and Dewpoint will___________.
Fall, Rise, Remain the same.
A change of state directly from a solid to a vapour or vice versa is:
sublimation
The instrument used for measuring the humidity of air is a:
hygroscope
The process of change of state from a gas to a liquid is:
condensation in which latent heat is released
The process of change of state from a liquid to a gas is:
evaporation in which latent heat is released
Air is classified as dry or saturated according to its relative humidity. If the relative humidity were 95% the air would be classified as:
conditionally saturated
Most accurate temperatures above ground level are obtained by:
radio sonde
The method by which energy is transferred from one body to another by contact is called:
conduction
The diurnal variation of temperature is:
reduced anywhere by the presence of cloud
The troposphere is heated largely by:
conduction from the surface, convection and the release of latent heat
An inversion is one in which:
there is an increase of temperature as height increases
The sun gives out________ amount of energy with _________ wavelengths.
The earth gives out relatively___________ amounts of energy with relatively___________ wavelengths:
d. Large, small, small, large.
With a clear night sky, the temperature change with height by early morning is most likely to show:
An inversion from near the surface and a 2°C per 1000 ft lapse rate above.
Over continents and oceans, the relative temperature conditions are:
Colder in winter over land, warmer in winter over sea.
