Depression angle

{
  "id": "MLC-T-MET-004934",
  "term": "Depression angle",
  "field": "Meteorology and atmospheric science",
  "definition": "The angle measured downward from the horizontal to a point of interest below the observer or instrument. In remote sensing, it is the angle between the horizontal plane at the sensor and the line of sight to a target on the ground. This angle is complementary to the elevation angle and is a key parameter in calculating the slant range and ground position of objects viewed by radar or other sensors.",
  "synonyms": [
    "depression"
  ],
  "see_also": [
    "azimuth",
    "elevation angle",
    "zenith distance"
  ],
  "url": "https://mlchart.com/terminology/meteorology/depression-angle/"
}