Question

What are the advantages of Remote Sensing?

Answer 1

Hint:The process of getting information about an object without making any physical contact with the object by using different technologies is known as remote sensing and thus preventing the on-site inspection. It is used to acquire information about the Earth. It refers to the use of satellite or aircraft-based sensor technologies to detect and classify objects on Earth.

Complete Step by Step Solution:The advantages of Remote sensing are:
- As we are getting information using satellites, areas which are inaccessible due to difficult terrain can be analyzed and information can be gathered about them.
- It can be used during floods, forest fires, landslides, earthquakes in order to get alternate routes so that disaster management teams can be helped to reach the places of disaster and help the people in need.
- As the information is gathered from a lab and analyzed over there it saves time and minimizes the work that needs to be done on the field.
- In absence of land surveys methods using remote sensing can become a relatively cheap and constructive method for reconstructing a base map.
- It provides large area coverage.
- It provides an easy collection of data over a variety of scales and resolutions.
- The data collected by remote sensing can be analyzed faster as compared to the on-site collection of data.
- The information gathered from a single remotely sensed image can be very extensive and used for different purposes.

Note:Remote sensing is of two types: Active remote sensing in this when a signal is emitted by a satellite or aircraft to the object and its reflection detected by the sensor and Passive remote sensing in this when the reflection of sunlight is detected by the sensor.