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. 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.






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






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






4. Antarctica - stratosphere - Sep-Oct






5. 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






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






7. 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






8. More common






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






10. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






11. Measures input and output.






12. O Unfrozen soil that stays within the permafrost.






13. 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






14. The amount of light reflected by an object.






15. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






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






17. How much is the planet really warming?






18. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.






19. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






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






21. Ice sheets have a very ____ Albedo






22. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






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






24. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






25. 1.4 USA - 57 m total sea level equivalent






26. Water vapor means more water up in the clouds and less in the ground!






27. Permafrost- A frozen soil






28. By contrast reflects only about 7% of solar radiation (Albedo~7%) - absorbing 93%.






29. 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






30. 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.






31. Set up in 1988 by WMO and UNEP.






32. High vs low






33. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






34. A dome shaped cover of perennial ice and snow.






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






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






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






38. Melting Point decreases






39. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






40. Total absorbed solar radiation






41. 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






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






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






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






45. Positive Albedo Feedback - increase in temperature melts ice and snow reduces albedo increases temperature melts ice and snow reduces albedo... ETC






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






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






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






49. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






50. 10 : 1 - grounding ; surface