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CHAPTER 2

VARIABLE WEATHER AND CHANGING CLIMATE

A Continuing Challenge?

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CHAPTER 2 VARIABLE WEATHER AND CHANGING CLIMATEA Continuing Challenge?

In this Chapter you will explore three key questions:

1.Why do different places experience different weather and climate?

2.What is happening to the earth’s climate?

3.Is the weather becoming more extreme?

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Gateway 1: Why do different places experience different weather and climate?

a. What is the difference between weather and climate?

b. What are the elements of weather?

-Temperature, relative humidity, clouds, rainfall, air pressure and wind.

c. What are the climatic types and where are they experienced?

CHAPTER 3 VARIABLE WEATHER AND CHANGING CLIMATE

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What is the difference between weather and climate?

• Video: http://www.knowmia.com/watch/lesson/6374

• Quiz: http://tinyurl.com/weatherqz1

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a. What is the difference between weather and climate?

Climate

Weather

Weather

Climate

Weather

Climate

Weather

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Comparison chartClimate Weather

Definition:Describes the average conditions expected at a specific place at a given time.A region's climate is generated by the climate system, which has five components: atmosphere, hydrosphere, cryosphere, land surface, and biosphere.[1]

Describes the atmospheric conditions at a specific place at a specific point in time. Weather generally refers to day-to-day temperature and precipitation activity

Components:Climate may include precipitation, temperature, humidity, sunshine, wind velocity, phenomena such as fog, frost, and hail storms over a long period of time.

Weather includes sunshine, rain, cloud cover, winds, hail, snow, sleet, freezing rain, flooding, blizzards, ice storms, thunderstorms, steady rains from a cold front or warm front, excessive heat, heat waves and more

Forecast: By aggregates of weather statistics over periods of 30 yearsBy collecting meteorological data, like air temperature, pressure, humidity, solar radiation, wind speeds and direction etc.

Determined by: Aggregating weather statistics over periods of 30 years ("climate normals").

Real-time measurements of atmospheric pressure, temperature, wind speed and direction, humidity, precipitation, cloud cover, and other variables

About:Climate is defined as statistical weather information that describes the variation of weather at a given place for a specified interval.

Weather is the day-to-day state of the atmosphere, and its short-term (minutes to weeks) variation

Time frame: Measured over a long period Measured for short termStudy: Climatology Meteorology

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Why do different places experience different weather and climate?

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(Alternative) Why do different places experience different weather and climate?

Go to: http://th07.deviantart.net/fs14/PRE/f/2007/035/e/3/Snowing_in_Singapo

re_by_Skyrion.jpg

The photo shows winter at Clarke Quay, along Singapore River

Will we experience snow in Singapore?

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a. What is the difference between weather and climate?

Weather: Condition of atmosphere at a particular place and specific time.

Climate: Average condition of the atmosphere of a particular place over a long period of time, usually 30 years.

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Gateway 1: Why do different places experience different weather and climate?

a. What is the difference between weather and climate?

b. What are the elements of weather?

-Temperature, relative humidity, clouds, rainfall, air pressure and wind.

c. What are the climatic types and where are they experienced?

CHAPTER 3 VARIABLE WEATHER AND CHANGING CLIMATE