Learn about remote sensing technology
Remote sensing science
There are several definitions of remote sensing
Remote sensing is the art of obtaining data and information about phenomena, objectives and terrestrial resources without direct contact with any of them. Some see it as art, science and technology, and Ms. Evelyn Pruitt was the first to use the term
remote sensing in the year 1950 AD
Types of remote sensing
Sensing can be done through a camera installed on the plane (aerial photography), and specific areas of the earth’s surface are photographed. In this case, the photography is through the atmosphere without direct contact with the phenomena on the earth’s surface. Study these terrestrial phenomena and identify their characteristics.
Remote sensing can also be done through satellites that receive electromagnetic energy reflected from phenomena, and each phenomenon has a value that is processed to obtain satellite visuals.
That is, the satellite visuals and aerial images are a product of the remotely sensed data process. It is worth mentioning that aerial photography came first, then satellites (space visuals).
General components of the remote sensing process
The sun is the main source of radiation and the satellite contains a sensor that captures and records the electromagnetic rays reflected from the earth's surface and sends digital data to the ground receiving station
Through the sun's rays that absorb the phenomena on the surface of the earth, and the satellite starts through the presence of (sensor - sensor) absorbs this energy and then sends it to the ground treatment stations until it begins to process it and gives the satellite visuals as final outputs of the remote sensing process
That is, the ingredients
First (the source of energy, whether natural such as the sun or an industrial source)
Secondly, a satellite that has a sensor or sensor to sense the amount of energy reflected by phenomena
Third (sending the satellite data to a ground receiving station until the processing is done to get the final output i.e. the satellite visual)
Satellite visuals and aerial photos are among the most important sources of spatial data on which various geographical studies depend
Science closely related to remote sensing
As part of the process of developing and collecting data (physical sciences - mathematical sciences - engineering sciences - astronomical sciences - meteorology)
Within the framework of the data analysis process (geographical sciences - geosciences - agricultural sciences - environmental tops)
Therefore, remote sensing is the product of an academic hybridization process