FINAL_EXAM_REVIEW - Climate & Weather Chapter 10 p. 245...

Info iconThis preview shows pages 1–18. Sign up to view the full content.

View Full Document Right Arrow Icon
p. 245 Chapter 10
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Climate vs. weather….what’s the difference? WEATHER: Condition/changes of the atmosphere that occur over a short period of time (days/season) CLIMATE: Condition/changes in daily weather patterns averaged over a long period of time (decades, centuries, and geologic time-millions/billions of years)
Background image of page 2
Why does climate, weather, and temperature change? - Change of the seasons - Availability of the sun (Constant heat source) - Atmospheric and Greenhouse effects (Ability to trap heat) - Natural causes? - Human causes?
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Sun and Atmosphere role in warming the planet Sun is our primary source of heat in the solar system Rocks, soil and water absorb short wavelength solar radiation. The Earth re-radiates the energy as long-wavelength infrared heat. Molecules in the atmosphere absorb some of the heat and the atmosphere becomes warmer. Sun’s short waves (much of heat stays in atmosphere)
Background image of page 4
Expanded View How do we Measure Long-Term Climate Change? Time (thousands of years)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Instruments Days and decades Historical Records 100’s years Tree Rings 100s-1000s years Pollen from bogs; C 14 1000s-10,000s yrs * Oxygen isotopes from ice 100,000s yrs Glacial deposits Millions of years Sediments, rocks & fossils Billions of years Climate Record through time – Methods for Measurement
Background image of page 6
Ice sheets during last ice age 30,000 to 10,000 years ago
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
0.3 m sea-level rise per century would increase coastal erosion Northeast – lose 15 to 30 meters of coastline California - 65 to 130 meters Florida - up to 300 meters Average commercial beach - is only 30 m wide Sea Level Trends Potential 4 m rise next century – most likely less than 0.5 meter Melting of Greenland Ice Sheet: ~7.8 m of sea level rise Melting all of Antarctic Ice Sheet: 73 m of rise Thermal expansion of water – significant!
Background image of page 8
An 80-meter rise in sea level? (melt all glaciers and ice sheets that are formed on land)
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Why do we have seasons? In summer , the Earth’s northern hemisphere tilts towards the Sun. In winter , the Earth’s northern hemisphere tilts away from the Sun. Why do we have day and night ? Earth completes one rotation around its axis in 24 hours. Predictable/Recordable changes in Climate/weather/temperature
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Fig. 10-3, p. 249
Background image of page 12
Energy from the sun
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What season is it in the northern hemisphere (in the figure)? 1. Winter 2. Spring 3. Summer 4. Fall
Background image of page 14
Predictable/Recordable changes from earth motion
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Greenhouse Effect Short waves heat ground Ground emits long waves (heat) Glass reflects long waves Greenhouse gases have similar effect
Background image of page 16
- Availability of the sun (Constant heat source) - Natural causes ? - Human causes
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 18
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 162

FINAL_EXAM_REVIEW - Climate & Weather Chapter 10 p. 245...

This preview shows document pages 1 - 18. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online