- Aerial survey
Aerial survey is a
geomatics method of collecting information by utilisingaerial photography or fromremote sensing imagery using other bands of theelectromagnetic spectrum , such asinfrared , gamma, orultraviolet . It can also refer to the chart or map made by analysing a region from the air. This is typically done usingaeroplanes ,helicopters , and in history with balloons. Aerial survey should be distinguished bysatellite imagery technologies because of its better resolution, quality and atmospheric conditions. Today, aerial survey is often recognized as a synonym for aerophotogrammetry, part ofphotogrammetry where thecamera is placed in the air. Measurements on aerial images are provided by photogrammetric technologies and methods.Aerial surveys can provide information on many things not visible from the ground.
Aerial surveys are used for:
*Archaeology
* Fishery surveys
* Land survey
* Mining
* Monitoring wildlife and insect populations, called aerialcensus or sampling.
* Monitoring vegetation and ground cover
*Reconnaissance Aerial survey uses a measuring camera where the elements of the interior orientation are known, but a camera that has much larger
focal length andfilm and more lenses are used.External links
* [http://www.grupairmed.net/web/in/ Grupairmed, Support aerial for companies]
* [http://www.ecs.co.sz/eagles.htm Aerial survey of raptors in Swaziland]
* [http://www.informatics.org/france/index.html GIS and remote sensing for archeology]
* [http://www.pbs.org/wgbh/nova/ubar/tools The Sky's Eyes: Remote Sensing in Archaeology]
* [http://www.cogeni.com/Products/VOS/VOS.en.aspx Visual Observation Studio: Mapping software for aerial surveys]
* [http://www.aerialarchaeology.com www.AerialArchaeology.com] Unmanned aerial reconnaissance tools for archaeologists, geologists, and geographers
* [http://www.conservationair.org Aerial survey, mapping and disaster relief in Africa ]
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