Wind
Wind direction is governed by ?
Isobars
Anticyclones are also called ?
High pressure
What is a Barometer used for?
Used to measure the atmospheric pressure
What is a Sea Breeze?
As the warm air over the land is rising, the cooler air over the ocean is flowing over the land surface to replace the rising warm air
What causes Spring tides ?
When there is a high tide, the Sun, Moon and Earth are in alignment and the gravitational force is strong
What are Isobars?
Line of equal pressure
A Trough is associated with what ?
Drepression
Describe an Cold Front and the weather associated with this front
Cold front advancing on a warm font with triangles, on same side can produce heavy rain, hail and thunder.
What is a Land Breeze ?
The air above the water is comparatively warmer and rises up, thus creating space for cool wind over land to move in towards the sea.
What causes Neap tides ?
when the sun and moon are at right angles to each other.
When wind swings into an anticlockwise direction, North to Northwest it is said to be?
Backing
What is a Depression ?
An area of low atmospheric pressure.
Describe an Warm Front and the weather associated with this front
Warm front advances over a cold front with humps on same side light persistent rain
What is Katabatic wind?
Katabatic wind that blows down a slope because of gravity
What effect does a High pressure have on the height of the tide?
High pressure causes water level to drop
When wind changes to a clockwise direction it is said to have?
Veered
Name 4 types of clouds
Cirrostrtus, Cirrus, Cirrocumulus,
Altostratus, Altocumulus
Nimbostratus, Stratus, Cumulus, Cumulonimbus
Describe an Stationary Front and the weather associated with this front
Cold and warm font meet neither strong enough to push the other, alternating humps and triangles, on opposite side. Can sit for days with rain
What is Radiation fog?
The cooling of land overnight by thermal radiation cools the air close to the surface. This reduces the ability of the air to hold moisture, allowing condensation and fog to occur.
What effect does a Low pressure have on the height of the tide?
Low pressure causes the water level to rise
Wind can be described by what scale ?
Beaufort wind scale
Isobars that are close together indicate what?
Strong wind
Describe an Occluded Front and the weather associated with this front
Cold and warm font with alternating humps and triangles, on same side very heavy rain
What is Advection fog ?
Advection fog occurs when moist, warm air passes over a colder surface and is cooled. It is also common at sea when moist tropical air moves over cooler waters.
What is the difference between Tides and Tidal steams?
Tides move vertically and Tidal steams move horizontally