Remote Sensing Questions Chapter 4 (Since I was late posting this, it will be due on Monday, February 12, 2001.)

  1. What are the roots of the word photogrammetry?
  2. Differentiate between large and small scale
  3. Write one inch represents five miles as an RF scale.
  4. Write 1"=1/3 mile as an RF scale.
  5. Write 1:633600 as a verbal scale.
  6. Draw the graphic scale for question 3.
  7. Draw the graphic scale for question 4.
  8. Draw the graphic scale for question 5.
  9. Answer question 1 page 94.
  10. Answer question 2 page 94.
  11. What affect will a higher flight have on the scale?
  12. If the height of the plane is 10,000 feet above the ground and the focal length of the camera is 1 foot, what will be the scale of the photos?
  13. If the height of the plane is 11,000 feet above the ground and the focal length of the camera is 8.25 inches, what will be the scale of the photos?
  14. If the height of the plane is 3,500 feet, the elevation of the surface is 500 feet, and the focal length of the camera is 6 inches, what will be the scale of the photos?
  15. Answer question 3 page 94.
  16. If the distance on a map between two points is one inch, the scale of the map is 1:24000, and the two points on the photo are 4.8 inches apart, what is the scale of the photo?
  17. If the distance on a photo between two points is 1 1/4 inches, the scale of the map is 1:63360, and the two points on the photo are 5.28 inches apart, what is the scale of the photo?
  18. Answer question 4 page 94.
  19. Answer question 5 page 94.
  20. If the distance between two points on the ground is known to be 1/4 mile and on the photo, they are two inches apart, what is the scale of the photo?
  21. If the distance between two points on the ground is known to be 100 yards and on the photo, they measure 1 inch apart, what is the scale of the photo?
  22. If a baseball diamond measures 1/4 of an inch on the photo, what is the scale?
  23. If a tennis court measures 1/2 of an inch on the photo, what is the scale?
  24. If a football field measures 3/4 of an inch on the photo, what is the scale?
  25. If a standard track measures one inch on the photo, what is the scale?
  26. If a football field measures 1.8 inches on the photo, what is the scale?
  27. Answer question 6 page 94.
  28. Answer question 7 page 94.
  29. Give an example of an airphoto that would have no relief displacement.
  30. Describe the effect of surface elevation on radial displacement.
  31. Describe the effects of distance from the PP on radial displacement.
  32. Why does tilt displacement have a hinge?
  33. What are the four requirements for calculating or measuring object heights from their exaggerated displacement on a single photo?
  34. How can flight height be determined from the scale and the focal length?
  35. If the scale is 1:24000 and the focal length is 7 centimeters, what is the height of the plane in meters?
  36. If the scale is 1:10000 and the focal length is 6 inches, what is the height of the plane in feet?
  37. If the scale is 1:5000 and the focal length is 12 inches, what is the height of the plane in feet?
  38. A vertical object measures 0.25 inches high and has a radial distance from the nadir of 6 inches. The height of the aircraft was 5025'. It is known that the base of the object is 25'. How tall is the object?
  39. A water tower measures 0.1 inches high and has a radial distance from the nadir of 4 inches. The height of the aircraft was 4300' and the ground elevation was 300'. How tall is the water tower?
  40. It is known that the plane was flying at 5500' and the elevation of the ground was 500'. The photo base length is measured as 4.5 inches. A feature has a differential parallax of 0.5 inches. What is the height of the feature?
  41. It is known that the plane was flying 4000 feet above the ground. The absolute stereoscopic parallax at the base of the object is measured as 2.7 inches. The differential parallax measures 0.3 inches. What is the height of the feature?
  42. The plane was flying 2000 feet above the base of a cliff. The differential parallax of the cliff measures 0.6 inches and the photos have an average photo base length of 3.4 inches. How tall is the cliff?
  43. If a 100 foot high building has a shadow of .45 inches, what is the height of a building with a shadow of 0.27 inches?
  44. If a 60 foot tree has a shadow of 0.3 inches, what is the height of another tree with a shadow of 0.4 inches?
  45. If a tower is known to be 300 feet, and it's shadow is 0.6 inches, what is the height of a neighboring tower with a shadow length of 0.4 inches?
  46. It is known that the sun's angle is 50 degrees and the scale of the photo is 1:5000. The tangent of 50 degrees is 1.19. If the shadow of a tower measures .5 inches, what is the height of the tower?
  47. It is known that the sun's angle is 35 degrees and the scale of the photo is 1:3000. The tangent of 35 degrees is 0.7. If the shadow of a tree measures 0.05 inches, what is the height of the tree?
  48. A bearing of N60E is what azimuth?
  49. A bearing of N 20W is what azimuth?
  50. A bearing of S30E is what azimuth?
  51. A bearing of S85W is what azimuth?
  52. If an area measures 45 dots and each dot is 8 square feet, what is the area of the feature?
  53. If a baseball diamond is covered by a grid sheet and contains 49 dots, what is the area of one dot?
  54. If the grid is 100 dots per inch, what is the scale of the photo?
  55. If a plane flies at an elevation of 5000 feet above the terrain with a 6 inch camera to make a standard 9 inch aerial photograph, what will be the area shown on one photograph in square miles?
  56. If the scale of a photo is 1:4000, what will be the area of a standard 9 inch photograph in square miles?
  57. Differentiate between an orthophoto mosaic and an controlled photomosaic.
  58. Differentiate between a controlled photomosaic and an uncontrolled photomosaic.
  59. Differentiate between a photo index sheet and an uncontrolled photomosaic.
  60. What is the text by Rabenhorst and McDermott?
  61. What is the text by Lillesand andKiefer?
  62. Who publishes the Manual of Photogrammetry?