Page 53 - ภาษาอังกฤษสำหรับสายวิทยาการอุตุนิยมวิทยา

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DENSE: ajective; close together. The property that makes some heavier than other objects
that are the same size

Ex. When air is cooled it contracts and becomes dense; this causes it to sink.

DENSITY: noun form of dense. dense + (-ity)

DESCEND: verb; to go downward
Ex. A lot of accidents happen when people are descending stairs

in a hurry.

EQUALIZE: verb form of equal. equal + (-ize)

EQUATORIAL: adjective form of equator. equator + (-ial)

EQUILIBRIUM: noun; a condition of two things being equal

Ex. There is an equilibrium between the weight of the atmosphere on the mercury
outside the barometer tube and the weight of the column of mercury in the tube.

GRADIENT: noun; the rate of change of a measurement that varies by distance

Ex. The isobars are very close together here; the pressure gradient is very steep.

HIGH: noun; an air mass that is characterized by high pressures

Ex. A high is located over northern Canada.

ISOBAR: noun; a line drawn on a weather map to connect areas that have the same pressure
Ex. This isobar runs right across the middle of the state.

JET STREAM: noun; a high level, high speed current of air

Ex. The plane made the trip in less time than usual because it was able to fly in the

jet stream.

KNOT : noun; a unit of measurement for windspeed or speed. of an aircraft

through the air. 1 knot = approximately 1.15 miles per hour (mph) or 1.85 kilometers
per hour

Ex. There is a 15-knot wind blowing from the north.

LOW: noun; an air mass that is characterized by low pressures

Ex. A low is located over the state of Florida.

LIE: verb; to be on an object or surface

Ex. When an air mass lies over a hot area it takes up the heat from the surface.
MIGRATE: verb; to regularly move from one place to another place

Ex. Hot air from the equator migrates toward the poles.

MIGRATORY: adjective form of migrate. migrate + (-ory)