Chapter 2 - Representations of Earth

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Across
  1. 2. a grid used to determine the location of points on Earth
  2. 7. the point at 90° south latitude
  3. 8. a map that preserves shape but distorts area
  4. 10. collecting data from a distance, typically with satellites or aircraft
  5. 11. a written statement of map scale (e.g., "1 cm = 1 km")
  6. 13. a line on a map showing constant elevation
  7. 14. the slope or steepness between two points
  8. 16. a side view showing elevation changes along a line
  9. 21. the angle between magnetic north and true north
  10. 25. a satellite-based system for determining precise location
  11. 27. a cylindrical map projection that shows accurate shapes but distorts size near the poles
  12. 30. the main north-south line in a survey system
  13. 32. a system that uses radio waves to detect objects and surfaces
  14. 34. the ratio between map distance and real-world distance
  15. 38. radar that scans sideways from a flying aircraft
  16. 39. data that represents separate, distinct features or categories
  17. 41. the angular distance east or west of the prime meridian
  18. 45. stretching vertical scale to highlight terrain features
  19. 46. the smallest unit of a digital image
  20. 48. a compass direction measured in degrees from north
  21. 51. a map key explaining the symbols used
  22. 53. a line of longitude running from the North Pole to the South Pole
  23. 54. a method using sound waves to map underwater surfaces
  24. 57. a square unit of land, typically 6 miles by 6 miles, in the survey system
  25. 60. the line of 0° longitude that divides the Earth into east and west
  26. 61. the science and art of making maps
  27. 63. converting addresses into geographic coordinates
  28. 64. a navigation tool used to measure the angle between an object and the horizon
  29. 65. the largest possible circle on a sphere, dividing it into two equal halves
  30. 66. radar used to detect precipitation and storm movement
  31. 67. a picture made of pixels used in remote sensing
  32. 68. a ratio or fraction showing the relationship between map and ground distances
Down
  1. 1. data that changes smoothly across a region, such as elevation or temperature
  2. 3. a circle on a sphere that does not divide it into equal halves
  3. 4. a map that accurately shows area but distorts shape
  4. 5. a projection that balances distortions of shape, area, and distance
  5. 6. a network of latitude and longitude lines that locates points on Earth
  6. 9. the direction or path along a compass
  7. 10. the level of detail in a digital image
  8. 12. a map projection based on a plane touching Earth at a point
  9. 15. one half of Earth, either north/south or east/west
  10. 17. a line connecting points of equal value
  11. 18. the point at 90° north latitude
  12. 19. infrared radiation that shows heat patterns. Also known as TIR.
  13. 20. the shape of Earth, slightly flattened at the poles and bulging at the equator
  14. 22. a line or bar showing distance units on a map. Also known as a bar scale.
  15. 23. a line of constant compass direction
  16. 24. capturing data in multiple wavelengths for analysis
  17. 26. the line where the calendar date changes by one day
  18. 28. the main east-west line in a survey system
  19. 29. an image made by combining several bands of remote sensing data into a color display
  20. 31. software that analyzes and displays spatial data. Also known as GIS
  21. 33. a digital representation of ground surface topography
  22. 35. the vertical distance between contour lines
  23. 36. Canada’s official land surveying framework for federal lands
  24. 37. the process of planning and following a route
  25. 40. a map focused on a specific topic or theme
  26. 42. the time of day when the sun is highest in the sky
  27. 43. a region where the same standard time is used
  28. 44. creating visual representations of data for interpretation
  29. 47. a method for representing Earth’s curved surface on a flat map
  30. 49. a projection that shows great circles as straight lines
  31. 50. the preservation of distance in map projection
  32. 52. a line of latitude running east-west around Earth
  33. 55. electromagneticradiation just beyond visible red light. Also known as NIR.
  34. 56. a square mile of land within a township
  35. 58. radar that creates pictures of the surface
  36. 59. the angular distance north or south of the equator
  37. 62. the line of 0° latitude that divides Earth into northern and southern hemispheres