CH 5: Aerial Photographs and Orthophoto Maps
43 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is one purpose of cast shadows on photographs mentioned in the text?

  • Reduce the resolution of the image
  • Identify objects and their spatial qualities (correct)
  • Enhance the color saturation of the photograph
  • Create an artistic effect

    • How are orthophoto maps different from standard aerial photographs?

  • Orthophotos are enhanced with cartographic details (correct)
  • Orthophotos are not corrected for topographic relief
  • Orthophotos do not provide a scale-accurate image
  • Orthophotos have lens distortions

    • What makes orthophotos highly reliable for precise measurements and detailed planning?

  • They have topographic relief
  • They are scale-accurate images (correct)
  • They are taken from a low altitude
  • They are not corrected for lens distortions

    • Which tool is crucial in geography for effective landscape interpretation?

    <p>Aerial photographs and orthophoto maps</p> Signup and view all the answers

    In what ways do geographers utilize orthophoto maps?

    <p>To enhance disaster preparedness strategies</p> Signup and view all the answers

    What is one benefit of using shadows in photographs for determining the time of day?

    <p>It aids in determining the position of the sun relative to the landscape</p> Signup and view all the answers

    Why are orthophotos considered more suitable for detailed planning compared to standard aerial photos?

    <p>Orthophotos provide a scale-accurate image</p> Signup and view all the answers

    What role do aerial photographs and orthophoto maps play in disaster preparedness?

    <p>They enhance disaster preparedness and response strategies</p> Signup and view all the answers

    What distinguishes vertical aerial photographs from oblique aerial photographs?

    <p>Vertical photographs are taken directly overhead, while oblique photographs are taken at an angle.</p> Signup and view all the answers

    Which element is crucial for identifying built structures, such as buildings and roads, on aerial photographs?

    <p>Shape and pattern</p> Signup and view all the answers

    Why might bare fields appear lighter in tone compared to vegetated areas on aerial photographs?

    <p>Due to their smoothness</p> Signup and view all the answers

    In what way does texture help in identifying features on aerial photographs?

    <p>By describing the smoothness or roughness of surfaces</p> Signup and view all the answers

    Which type of aerial photograph is particularly useful for providing a more three-dimensional perspective of landscape features?

    <p>High-oblique aerial photographs</p> Signup and view all the answers

    What makes vertical aerial photographs ideal for mapping purposes?

    <p>They provide a consistent scale and a true top-down view</p> Signup and view all the answers

    What type of aerial photograph provides a top-down view and a consistent scale ideal for mapping purposes?

    <p>Vertical Aerial Photographs</p> Signup and view all the answers

    Which characteristic helps in distinguishing between built structures like buildings and natural features like mountains on aerial photographs?

    <p>Shape</p> Signup and view all the answers

    What is the main difference between low-oblique and high-oblique aerial photographs?

    <p>The horizon visibility</p> Signup and view all the answers

    On aerial photographs, what does tone variation primarily depend on?

    <p>Reflectivity of objects</p> Signup and view all the answers

    Which element of aerial photographs describes the visual smoothness or roughness of surfaces?

    <p>Texture</p> Signup and view all the answers

    How do oblique aerial photographs differ from vertical aerial photographs?

    <p>Oblique photos have varying scales</p> Signup and view all the answers

    Which type of aerial photograph is particularly useful for providing a three-dimensional view of landscape features?

    <p>High-Oblique Aerial Photographs</p> Signup and view all the answers

    What is the main advantage of orthophoto maps over standard aerial photographs?

    <p>They include contours and spot heights for precise measurements.</p> Signup and view all the answers

    How do shadows on photographs help in identifying objects?

    <p>By helping determine the position of the sun relative to the landscape.</p> Signup and view all the answers

    Why are cast shadows on photographs useful for determining the time of day?

    <p>They change in orientation based on the sun's position.</p> Signup and view all the answers

    How do orthophoto maps differ from standard aerial photographs in terms of accuracy?

    <p>Orthophoto maps provide a scale-accurate image.</p> Signup and view all the answers

    In what way do different land covers like crops help in aerial photography interpretation?

    <p>By contributing to the distinct textures of the landscape.</p> Signup and view all the answers

    Which feature makes orthophotos highly reliable for precise measurements?

    <p>Being corrected for lens distortions.</p> Signup and view all the answers

    Why are shadows important in determining the position of the sun relative to the landscape?

    <p>To show the direction of sunlight.</p> Signup and view all the answers

    What role do contours play in orthophoto maps?

    <p>Contours provide details necessary for precise measurements.</p> Signup and view all the answers

    How do geographers primarily interpret landscapes using aerial photography?

    <p>By identifying landforms and features through various elements</p> Signup and view all the answers

    What characteristic of vertical aerial photographs makes them ideal for mapping purposes?

    <p>True top-down view and consistent scale</p> Signup and view all the answers

    Which factor primarily affects the tone variation in objects captured in aerial photographs?

    <p>Reflectivity of the object</p> Signup and view all the answers

    What aspect of surfaces on aerial photographs is described by the term 'texture'?

    <p>Granularity or smoothness</p> Signup and view all the answers

    In aerial photography, how does the angle at which oblique aerial photographs are taken influence their perspective?

    <p>It alters the apparent elevation of the land features</p> Signup and view all the answers

    What type of aerial photograph is characterized by showing the horizon and providing a more three-dimensional perspective?

    <p>High-oblique</p> Signup and view all the answers

    How do orthophoto maps differentiate from standard aerial photographs in terms of cartographic details?

    <p>Orthophoto maps include contours, spot heights, and street names, enhancing their cartographic details.</p> Signup and view all the answers

    What is the primary advantage of using shadow cast on photographs for determining the time of day?

    <p>Shadows help identify the position of the sun relative to the landscape.</p> Signup and view all the answers

    How do orthophotos differ from standard aerial photos in terms of accuracy for measurements and planning?

    <p>Orthophotos include scale-accurate images and correct for topographic relief, lens distortions, and camera tilt.</p> Signup and view all the answers

    What role do aerial photographs play in enhancing disaster preparedness?

    <p>Aerial photographs aid in developing response strategies for disasters.</p> Signup and view all the answers

    Why are shadows important in landscape interpretation through aerial photography?

    <p>Shadows help in identifying objects' spatial qualities.</p> Signup and view all the answers

    Which element makes orthophotos highly reliable for detailed planning?

    <p>Corrected topographic relief</p> Signup and view all the answers

    How do shadows on photographs contribute to identifying objects?

    <p>Shadows help identify objects and their spatial qualities like height and depth.</p> Signup and view all the answers

    Why is it essential to understand aerial photographs and orthophoto maps for geographers?

    <p>All of the above</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser