Which term refers to the use of measurements made on aerial photos to obtain quantitative data about the Earth's surface?

Which term refers to the use of measurements made on aerial photos to obtain quantitative data about the Earth's surface?

• A. Aerial Photogrammetry
• B. Terrestrial Photogrammetry
• C. Metric Photogrammetry
• D. Interpretative Photogrammetry

Answer: (C)

The concept here is extracting precise measurements from aerial photographs to obtain numerical data about the Earth's surface. This is what metric photogrammetry does: it uses the geometry of the camera, known scales, and stereo models to calculate distances, areas, and elevations with a defined level of accuracy. This focus on quantitative data from aerial imagery distinguishes it from other approaches. Terrestrial photogrammetry uses ground-based photos, which aren’t from the air; interpretative photogrammetry emphasizes describing features qualitatively rather than measuring them; and the broader field of aerial photogrammetry covers a wider range of tasks, not all of which are strictly metric. So the term that best fits the goal of obtaining quantitative data from aerial photos is metric photogrammetry.

The concept here is extracting precise measurements from aerial photographs to obtain numerical data about the Earth's surface. This is what metric photogrammetry does: it uses the geometry of the camera, known scales, and stereo models to calculate distances, areas, and elevations with a defined level of accuracy. This focus on quantitative data from aerial imagery distinguishes it from other approaches. Terrestrial photogrammetry uses ground-based photos, which aren’t from the air; interpretative photogrammetry emphasizes describing features qualitatively rather than measuring them; and the broader field of aerial photogrammetry covers a wider range of tasks, not all of which are strictly metric. So the term that best fits the goal of obtaining quantitative data from aerial photos is metric photogrammetry.