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Science 1206 > Weather > Flashcards

Weather Flashcards

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1
Q

Weather Balloons

A

Helium-filled balloons that are launched 2 or more times per day from weather stations across North
America

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2
Q

Weather Radar

A

A weather radar sends out radio waves that are then reflected by
objects in the air such as rain, snow, hail, etc.

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3
Q

Remote Sensing Technology

A

Technology that collects data from a distance

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4
Q

Weather Satellites

A

An orbiting spacecraft that regularly gathers weather-related data and images and transfers them to weather stations on the ground

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5
Q

Meteorologist

A

A person who studies weather

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6
Q

Forecasting

A

A meteorologist’s ability to predict weather conditions

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7
Q

What are the types of Forecasting?

A

A short range forecast and a long range forecast

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8
Q

How long does a short range forecast last?

A

A short range forecast is for a period up to 48 hours

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9
Q

How long does a long range forecast last?

A

A long range forecast is for a period ranging from 4-7 days

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10
Q

What is Persistence forecasting?

A

Assumes current weather patterns will continue into the future

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11
Q

What is Nowcasting?

A

Relies on the use of remote sensing technology

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12
Q

What is a Weather Map?

A

Weather maps show current atmospheric conditions

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13
Q

What is an Isobar?

A

A line showing locations of the same atmospheric pessure

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14
Q

What is an Isotherm

A

A line showing locations of the same temperature

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15
Q

What is a cold front?

A

The leading edge of an advancing cold air mass

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16
Q

What is a warm front?

A

The retreating edge of a cold air mass as a warm air mass approaches

17
Q

Stationary front

A

The boundary between two air masses that are not moving

18
Q

Occluded front

A

The boundary formed when a fast-moving cold front overtakes a slow moving warm front

19
Q

What is Climate

A

A set of environmental conditions averaged over many years

20
Q

What is an Ice Core?

A

A core sample that is typically removed from an ice sheet

21
Q

What is the Greenhouse Effect?

A

The greenhouse effect is a process in which certain gases in the atmosphere absorb heat from the sun and heat that is radiated from earth’s surface.

22
Q

______________ is a mechanism of energy transfer in which atoms or molecules
give off energy in the form of electromagnetic waves

A

Radiation

23
Q

What is a heat sink?

A

Any substance that can absorb and retain energy without changing state

24
Q

What is Conduction?

A

A thermal energy transfer between two objects or substances that are in direct contact

25
Q

What is Convection?

A

A thermal energy transfer by the movement of heated material from one place to another

26
Q

What is Atmospheric Pressure?

A

The pressure applied by air on its surroundings due to the weight of the air

27
Q

What is Humidity?

A

The amount of water vapour in the air

28
Q

What is a Dew Point?

A

Temperature at which air is saturated with water vapour so that it condenses and falls as precipitation

29
Q

What is an Air Mass?

A

a very large mass of air with nearly constant properties of temperature, humidity, and pressure

30
Q

What is a Front?

A

A zone that develops as a result of the meeting of two air masses with different characteristics

Science 1206 (2 decks)

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