REMOTE SENSING TECHNOLOGY
What is Remote Sensing?
Remote sensing is a technology involving the use of sensors placed on platform moving at a far distance from earth's surface and it can be used for collecting data of the earth for the purposes of inventorying and monitoring.
| Technology |
- |
satellite, computer, image processing application, etc. |
| Sensors |
- |
multispectral electro-optical, radar, laser, camera, etc. |
| Platform |
- |
satellite, aircraft, balloon, etc. |
| Inventorying |
- |
static phenomena |
| Monitoring |
- |
dynamic phenomena |
Remote Sensing Technology Component
| A |
- |
Energy Source (sun - active, microwave - passive) |
| B |
- |
Target (vegetation,soil,water) |
| C |
- |
Satellite (receive electromagnetic wave from target) |
| D |
- |
Ground Station (receive and process electromagnetic wave data from satellite) |
| E |
- |
Satellite Data (digital or hard copy) |
| F |
- |
Analysis and Interpretation (image processing) |
| G |
- |
Spatial Data Analysis and Modelling (GIS, decision suppports) |
| H |
- |
Users (policy makers, planners, implementers) |
Special Characteristics of Remote Sensing
-
Synoptic (bird's eye) view coverage of large areas providing simultaneous different spatial information - suitable for integrated development planning and monitoring.
-
Repetative aerial coverage facilitating monitoring of dynamic activities and phenomena.
-
Data are collected in digital form - facilitate processing by using computer (speed, consistency, data transfer).
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