DMCA
Remote Sensing
Cached
Download Links
- [www.ncrg.aston.ac.uk]
- [www.ncrg.aston.ac.uk]
- DBLP
Other Repositories/Bibliography
BibTeX
@MISC{Seen_remotesensing,
author = {We Have Seen},
title = {Remote Sensing},
year = {}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
optically (at the same time) and repeatedly, to build up a picture of change. If you think remote sensing is largely concerned with sensing at visible wavelengths you are wrong. Increasingly, other regions of the electro-magnetic spectrum are utilised to provide very useful information. 9.2.1 The electro-magnetic spectrum O.t 0.4 0.6 t.O 3.0 15 O.t tO0 Wavelength( ImO Wavelength (m) Figure 9.11: A sketch of the atmospheric transmission of EMR for the full region commonly used in remote sensing, based on (Mather, 1999). Electro-magnetic radiation (EMR) is emitted by all objects which have energy. You and I are currently giving off large amounts of electro-magnetic radiation in the thermal infrared region of the spectrum. We are doing this because our bodies are hot - indeed the wavelength of the radiation emitted is a function of the temperature of the emitting body. The useful EMR spectrum is shown in Figure 9.11, together with the amount of radiation at each wavelength absorbed
