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. High clouds are a ____ feedback; larger greenhouse warming - Clouds reflect shortwave radiation but also absorb longwave radiation






2. Fresh snow and snow-covered sea ice may have an albedo higher than 80% - even when melting in the summer. Sea ice has a higher albedo and can absorb as little as 10% of the solar energy. On average - sea ice albedo is around 85%






3. Closed talik can develop when lakes fill in with sediment and become deposits of dead plant material (bog).






4. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






5. 240 w/m squared






6. Less frequent and weaker






7. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.






8. Antarctica - stratosphere - Sep-Oct






9. Precipitation intensity will rise ___ for every 1 OC of warming.






10. The past climate...for this reason - both keep good records of climate change.






11. 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






12. The order of 1 m/year. Melting is ten times more.






13. Ocean retains ____ CO2






14. Prolonged period of excessively hot weather - Which may be accompanied by high humidity.






15. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






16. Permafrost- A frozen soil






17. Poor resolution (200-400 km) does not allow us to distinguish glaciers and basins.






18. 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) -






19. 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






20. Rainy on yearly average. In these regions - rising air predominates.






21. 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






22. Radiation absorbed by atmospheric greenhouse gases?






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






24. 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!






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






26. In _______ - the inversions are less frequent and weaker in the Arctic.






27. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






28. 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.






29. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






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






31. Greenhouse gases are a ___ portion of the atmosphere






32. Measures input and output.






33. In ________- inversion layer is more common in the Arctic






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






35. The high pressure decreases the melting point and favors melting - Melt water being less dense rises along the water column along the ice shelf bottom and may either escape the cavity or refreeze at some intermediate depth. Melting point decreases:






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






37. O Climate change in the Arctic is occurring now - Changes have been huge already






38. 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.






39. Unfrozen ground that is found within a mass of permafrost






40. Ice sheets have a very ____ Albedo






41. Is not an externally imposed perturbation to the climate system.






42. Longwave radiation - any radiation with a long wave will heat up quickly.






43. Really measures volume.






44. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.






45. 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.






46. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






47. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






48. Summer increase in cloud cover - Winter decrease in cloud cover.

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49. The Earth emits this.






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