Air survey

Air Survey is a method of collecting geospatial data or information through the use of aerial photography, satellite imagery, radar, or LiDAR technology. This method is often used in cartography, topography, environmental studies, and urban planning.

History

The concept of air survey dates back to the early 20th century, when balloons and kites were used to take aerial photographs. The development of aircraft and photography technology during the First World War and Second World War significantly advanced the field of air survey.

Methodology

Air survey involves the use of various technologies and methods to collect data. The most common method is aerial photography, where cameras mounted on aircraft capture images of the ground. These images can then be analyzed to create maps or to study changes in the landscape.

Satellite imagery is another common method used in air survey. Satellites orbiting the Earth capture images that can be used for a variety of purposes, from weather forecasting to military intelligence.

Radar and LiDAR technology can also be used in air survey. These methods involve sending out signals and measuring their return time to create detailed images of the Earth's surface.

Applications

Air survey has a wide range of applications. In cartography, it is used to create detailed and accurate maps. In environmental studies, air survey can help monitor changes in the environment, such as deforestation or the spread of wildfires. In urban planning, air survey can provide valuable data on land use and infrastructure.

See also

• Remote sensing
• Geographic information systems
• Photogrammetry

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