Lecture 7 Climate Change

Question 1

Atmosphere

Answer 1

Retains solar heat
Protects from solar radiation
Distributes water

Question 2

DMS

Answer 2

Natural process
1. Plankton
2. Waves slapping
3. Released to atmosphere
4. Changes to gas sulfate
5. More clouds (seeding)
6. Less sun
Helps keep atmosphere in balance

Question 3

Troposphere

Answer 3

Closer to earth
75% total atmospheric mass
Water distribution
Weather

Question 4

Convection Currents

Answer 4

Heat driving currents; caused by a difference in temperature
Process of transferring heat through air or liquid currents

Question 5

Stratosphere

Answer 5

Ozone
Absorbs solar radiation = heat

Solar energy reaching our atmosphere
25% reflected by clouds or gasses
25% absorbed by atmospheric gasses
CO2
Methane
Water vapor
Ozone
Warms atmosphere
50% reaches earth’s surface

Albedo : Measure of how much sunlight is reflected

Question 6

Terrestrial Energy

Answer 6

Released from earth’s surface
Atmospheric gasses in stratosphere can capture and return lower quality “terrestrial” energy back to troposphere

Question 7

Greenhouse Effect

Answer 7

Process through which heat is trapped near Earth’s substance (greenhouse gasses)
Natural
CO2 traps too much heat
Makes atmosphere warmer
When earth absorbs energy → moves / redistributes ⇒ weather

Question 8

Cold Front

Answer 8

Transition zone where cold air mass is replacing hot air
Northwest → southwest

Question 9

Warm Front

Answer 9

Warm air to cold air
Southwest → Northwest

Question 10

Jet Stream

Answer 10

Fast flowing, narrow air currents found in the atmosphere
Located in troposphere
West → east