Test your basic knowledge |

Global Warming

Subjects : literacy, science
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets

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

3. he increase of ozone concentration in the atmosphere helps ____ our planet

4. An area of unfrozen ground that is open to the ground surface but otherwise enclosed in permafrost.

5. 10 : 1 - grounding ; surface

6. The heat input is either driven by the 1- thermohaline circulation associated with sea ice formation. The direct influx of intermediate warmth water.

7. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.

8. 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.

9. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t

10. Wet gets _____ - dry gets ____ - Wet - 50ON (sub polar) Canada - N Europe - Russia - Tropical area- monsoon (rainforest) - Drier - Subtropics - Australia - S. Africa - Mediterranean - Caribbean - Mexico - SW US

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

12. Number of days when temperatures climb above average by a fixed amount.

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

14. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.

15. Greenhouse gases are mixed in the ____

16. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water

17. 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.

18. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.

19. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.

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

21. Changes over time in the highest and lowest single temperature observed during a given month of the year.

22. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.

23. Where do greenhouse gases warm up the Earth?

24. Over the Northern Hemisphere than the tropics.

25. Sea ice extent in Antarctica is rapidly reducing. Seasonal variability. People - Animals and Ice

26. Total absorbed solar radiation

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

28. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv

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

30. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

31. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor

32. 1.4 USA - 57 m total sea level equivalent

33. ~10% of incident solar energy (albedo 90)

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

35. Permafrost- A frozen soil

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

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

38. Like weighing oneself on the scale.

39. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.

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

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

42. Set up in 1988 by WMO and UNEP.

43. Sea ice and continental ice. This is caused by Atmospheric warming triggers.

44. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface

45. Greenhouse gases are a ___ portion of the atmosphere

46. 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

47. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi

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

49. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.

50. 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!