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Test your basic knowledge |
Global Warming
Start Test
Study First
Subjects
:
literacy
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Longwave radiation - any radiation with a long wave will heat up quickly.
Ice/snow
Infrared radiation
El Nino
Mass Change
2. High cloud has a _____ effect and cool cloud has a ____ effect
IN the last 2 decades what we've seen
Warming; cooling
Amount of light actually reaching the Earth
Carbon Dioxide
3. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.
Surface Mass Balance
In the troposphere that we live in.
How we measure Mass Balance
Altimetry
4. Greenhouse gases are mixed in the ____
Troposphere
GHG
Is precipitation around the world increasing?
Altimetry (height)
5. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.
Questions to think about
Ice in the Arctic
Snow and snow covered ice absorb
Through talik
6. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans
Sunspots
Contributions to CO2 from different activities
Questions to think about
Mass Balance
7. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.
Arctic Atmosphere
Effect of Deforestation on CO-2
75-OC
Thermokarst
8. LW - SW - 55% absorbed by surface
Antarctica
Energy Budget
Surface Mass Balance
Sea-Ice Albedo
9. Like weighing oneself on the scale.
Albedo
Open talik
Surface Mass Balance
Time Variable Gravity
10. Melting Point decreases
.75OC/km-1
Methane
How a closed talik forms
30%
11. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.
20%
Stronger
Positive feedbacks both found in...
Is precipitation around the world increasing?
12. What can cause a change in the Earth's climate balance?
Melt
Severe coastal erosion
Increase in the amount of water vapor or cloud vapor - Volcanic eruptions
Positive
13. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.
Meteorological Drought
Sublimation
Antarctica
Albedo
14. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv
Carbon Dioxide
Atmospheric Composition?
Why the Arctic climate is special
Ice shelf
15. Radiation absorbed by atmospheric greenhouse gases?
15 percent (70% is not reflected but radiated to space from clouds - atmosphere - and Earth.)
Thermokarst
Threshold departures
Thermohaline Circulation Effect
16. Number of days that exceed a given temperature
Absolute thresholds
Effect of Deforestation on CO-2
Inversion Layer Winter
Inversion Layer Summer
17. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.
Ice Discharge
.7O Celsius over the past century.
Absolute thresholds
Mass Budget
18. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.
Thickness of the active layer and the permafrost depend on this
Thermohaline Circulatoin
Methane
Grounding v Surface Melting
19. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change
Importance of ice sheets
Negative Ice-Albedo Feedback
US and precipitation
Active Layer
20. O Climate change in the Arctic is occurring now - Changes have been huge already
Some parts of the planet are dry because of their location
Ice absorbs
.7O Celsius over the past century.
Today melting ice
21. The buoyant force is equal to the weight of the displaced water.
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22. Antarctica - stratosphere - Sep-Oct
Ozone Hole
How to define a heatwave
Stratospheric Ozone Depletion
Grounding Lines
23. 85%
Heat wave
Inversion Layer Summer
Sea-Ice Albedo
Ice Shelf
24. Extent will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean.
reduction in sea-ice
Hydrological Drought
Talik
Wetter; drier
25. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface
doubles
Sublimation
Talik
Why the Arctic climate is special
26. Amount of light absorbed by surface
Discontinuous Permafrosrt
50%
Closed talik
Ice Cap
27. Over the Northern Hemisphere than the tropics.
Ocean water
Cloud Feedbacks
Where rise in OC is greatest
Discontinuous
28. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling
Accumulation
Surface Mass Balance
How we measure Mass Balance
Types of Albedo
29. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.
air can warm dramatically
75-OC
Ice-Ocean Interactions
Atlantic Thermohaline Circulation
30. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous
Permafrost
US and precipitation
Sunspots
Layers of Earth
31. Arctic troposphere is thinner (8-10 km) than the tropics...The depth of the atmospheric layer is much shallower in the Arctic - It takes less energy to warm the Arctic rather than the Tropics - Same as heating an apartment vs. a house
Natural Causes of Warming
Thinner atmosphere
Inversion Layer Summer
Open talik
32. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought
Agricultural Drought
50%
Change in vegetation generates a further feedback
Ice Motion
33. In ________- inversion layer is more common in the Arctic
Accumulation
winter
Today melting ice
Percentile departures
34. Industrial product - 300 ppb (parts per billion)
Grounding Lines
Albedo
Nitrous Oxide (N2O)
7%
35. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount
Active Layer
Warm
Meteorological Drought
Thermohaline Circulation
36. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.
Active Layer
Ozone
15 percent (70% is not reflected but radiated to space from clouds - atmosphere - and Earth.)
Rainy
37. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water
Antarctica
Methane
Thermohaline Circulation
Altimetry Pros
38. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize GHG emissions - the Protocol commits them to do so.
Ice-Ocean Interactions
Negative
70%
Major distinction between Kyoto Protocol and Convention
39. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!
Very small portion
Thinner atmosphere
70%
How to define a heatwave
40. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer
Sea Ice
Cloud Feedbacks
Layers of Earth
Active Layer
41. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.
Methane
Ice in the Arctic
Increases - decreases
Rainy
42. Rainy on yearly average. In these regions - rising air predominates.
Altimetry Pros
Climate Change in the Arctic
Altimetry (height)
Deep tropics between 15O N and 15 O S are quite
43. he increase of ozone concentration in the atmosphere helps ____ our planet
Frozen Soil
Normal condition for air
Ice Sheets
Warm
44. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%
% of Greenhouse Gases
Thermohaline Circulation
Carbon Dioxide
Ice-Ocean Interactions
45. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor
Open talik
Ice in the Arctic
Affect Floods and Droughts
Cause of break of inversion layers or decrease in frequency
46. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.
doubles
Time Variable Gravity
.75OC/km-1
Active Layer
47. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.
Accumulation
Thermokarst Lake
Air pollution
Ice loss
48. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.
Cloud Feedbacks
US and precipitation
Albedos of Snow and Ice
Ice Sheets
49. Summer increase in cloud cover - Winter decrease in cloud cover.
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50. All processes that add snow or ice to a glacier or to flowing ice or snow cover.
Thermohaline Circulation Effect
Accumulation
El Nino
Ozone