Weather

Storm chasers1. How did the stormchaser know a tornado

was forming? Use observations to explain.

2. List 2 benefits of using videography to capture extreme weather.

3. List 2 limitations of using videography to capture extreme weather.

Introductory Journal

It is 1765. You are a scientist that has been asked by Laurent Lavoisier (first scientist to measure weather) to be a member of the first official meteorology team.

The team has been given the directions for how to make the following pieces of weather equipment: barometer, rain gauge, hygrometer, weather vane & anemometer. Your team’s assignment is to collect weather data for 5 days, keep a weather journal (observations & actual), and use this information to answer the following questions:

What patterns are there between the measurements collected when using the equipment and the weather?

How can future scientists use this equipment to predict the weather?

Were there any pieces of equipment that you would like to improve? If so, how would you improve them?

Weather Forecasting: Meteorology Team

Team Name: ________________________________________________

Recorder: responsible for keeping weather journal (including actual)____________________________________________________________ 

Analyst: responsible for making data tables & keeping data after each outing____________________________________________________________  Manager: responsible for overseeing project & final meeting (answering questions)___________________________________________________________ 

Writer: responsible for overseeing the creation of the final report to be submitted___________________________________________________________

Meteorology Teams

Team Name:________________________________________________ Recorder: responsible for keeping weather journal (including actual)____________________________________________________ Analyst: responsible for making data tables & keeping data after each outing________________________________________________ Engineers: responsible for organizing the construction of the equipment & ensuring readings (to complete readings if a member is absent) Member’s Assignments:Anemometer: ________________________________________________Hygrometer: _________________________________________________Barometer: __________________________________________________Weather Vane: _______________________________________________Rain Gauge: _________________________________________________  Manager: responsible for overseeing project & final meeting (answering questions)________________________________________________ Writer: responsible for overseeing the creation of the final report to be submitted 

Meteorology Teams

13.8 – Hydrosphere 13.9 – Major Ocean Currents 

Please complete each of the following tasks to share with a partner during our next class:

A. Read and write summary notes

B. Create a visual (i.e. word web, flow chart, labeled diagram, etc.) that represents the main points discussed in your section

C. Write 3 original questions to ask you partner so that you can check her/his understanding of your summary & diagram

Hydrosphere & Ocean Currents

Global Wind Patterns

Currents are caused by: Convection currents Wind Earth’s rotation Heat capacity of water Shapes of Continents Salt in water

Ocean Currents

Ocean Currents

Water, land & plants gain energy from sun & surroundings

Energy gain = faster water molecules

Faster water molecules = rising water vapour

At high altitude, temp. is colder & water vapour liquid (condensation)

Energy & Condensation

Clouds: Fine droplets of water Light Carried by wind

Cloud Formation: Convective – moist air near ground rises &

cools Frontal – moving air masses meet; cold & warm Orographic – warm, moist air moves up

mountain & cools

Energy & Condensation

Clouds

Droplets accumulate & cool Heavy, larger droplets = falling condensation

(rain) Types:1. Drizzle – fine drops2. Rain – larger drops3. Freezing rain – cold rain hits cold surface4. Snow – water vapour crystallizes on tiny solid

particles (below 0˚C)5. Hail – cumulonimbus clouds; frozen, layered

drops

Condensation (p. 556):

1. Explain one thing that common about the causes of condesation and wind.

Wind: Moves in predictible pattern Leads to movement of condensation Creates predictable weather patterns

(hurricane path)

Condensation & Wind

Global Weather Model

1. In your own words, describe severe weather.

2. Explain how condensation is formed.

3. Describe what wind is.

4. Explain how the absorption of the sun’s energy (heat) affects wind and precipitation.

Reflection – Weather Patterns

5. Outline the pattern of wind currents on the global scale.

6. Outline the pattern of ocean currents on the global scale.

7. Base on all that you have learned, what would you say is the main cause of extreme weather on Earth? Support your response with ideas learned during this unit.

Reflection – Weather Patterns

1. What patterns are there between the measurements collected when using the equipment and the weather?

2. How can future scientists use this equipment to predict the weather?

3. Were there any pieces of equipment that you would like to improve? If so, how would you improve them?

Meterology Questions