Test your basic knowledge |

Global Warming

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. How often does El Nio occur?






2. x7 smaller - 7m total sea level equivalent.






3. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






4. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer






5. Warming- positive feedback - Cooling- negative feedback.






6. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






7. Radiation that comes from the Sun - Visible light - 'near infrared' - ultraviolet radiation.






8. Amount of light absorbed by surface






9. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






10. Ocean retains ____ CO2






11. The depletion of stratospheric ozone layer in Antarctica in Springtime (august through October)






12. Reduction of snow and ice cover - Changes in atmospheric circulation.






13. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






14. All processes that add snow or ice to a glacier or to flowing ice or snow cover.






15. Industrial product - 300 ppb (parts per billion)






16. Greenhouse gases are mixed in the ____






17. 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






18. Radiation absorbed by atmospheric greenhouse gases?






19. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






20. The buoyant force is equal to the weight of the displaced water.

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21. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






22. The large-scale ocean circulation that moves water between the deep and surface ocean which effects salinity and temperature change - Supplies heat to the polar-regions.






23. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






24. O The amount of energy moving in the form of photons or other elementary particles at a certain distance from the source per unit of area per second. Area/second






25. Amount of light absorbed by atmosphere






26. Thawing permafrost weakens coastal lands. Risk of flooding in coastal wetlands. Pollution and toxins locked in the snow and ice will be released.






27. Antarctica - stratosphere - Sep-Oct






28. 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






29. Number of days that exceed a given temperature






30. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






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






32. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






33. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






34. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






35. Laser radar - H V - Long time series - high accuracy - Density






36. 240 w/m squared






37. Industry 40% - Buildings 31% - Transportations 22% - Agriculture 4%






38. Really measures volume.






39. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






40. Descending Air dry - Convection cells are wet.






41. The last portion of a glacier grounded to bedrock - after this line there are ice shelves.






42. Total absorbed solar radiation






43. Grace - Tells us how much mass change we have - M - This is the measure of gravity (gives us the mass) - Directly measure mass change - Poor resolution






44. CO2 GHG forcing - H2O - dominant/major GHG






45. Same as heating an apartment v home - Thinner atmosphere than tropics; warms faster.






46. 1.4 USA - 57 m total sea level equivalent






47. A climate forcing agent formed through the incomplete combustion of fossil fuels - biofuel - and biomass; emitted both anthropogenic:ally and naturally.






48. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






49. High cloud has a _____ effect and cool cloud has a ____ effect






50. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'