Category Archives: Remote Sensing 101

RADAR AND MICROWAVE REMOTE SENSING

Posted on April 29, 2008 by Rashid Faridi

Electromagnetic radiation at long wavelengths (0.1 to 30 centimeters) falls into a segment of the spectrum commonly called the microwave region. At still longer wavelengths (centimeters to meters) the radiation is known as radio waves (these can be generated by … Continue reading →

Posted in Remote Sensing 101 | 1 Comment

Imagery for Everyone

Posted on April 28, 2008 by Rashid Faridi

RESTON, VA – The USGS Landsat archive is an unequalled 35-year record of the Earth’s surface that is valuable for a broad range of uses, ranging from climate change science to forest management to emergency response, plus countless other user … Continue reading →

Posted in News, Remote Sensing 101 | Leave a comment

Electromagnetic Spectrum: Transmittance, Absorptance, and Reflectance

Posted on April 17, 2008 by Rashid Faridi

 Some objects are capable of transmitting the light through their bulk without significant diminution (note how the beam bends twice at the medium 1/medium 2 interface but emerges at the same angle as entry). Other materials cause the light energy … Continue reading →

Posted in Remote Sensing 101 | Tagged | Leave a comment

Principles of Remote Sensing: The Photon and Radiometric Quantities

Posted on April 2, 2008 by Rashid Faridi

Most remote sensing texts begin by giving a survey of the main principles, to build a theoretical background, mainly in the physics of radiation. While it is important to have such a framework to pursue many aspects of remote sensing, … Continue reading →

Posted in Remote Sensing 101 | 1 Comment