Images from Thesis

Electromagnetic Spectrum

(Alaska Satellite Facility , 2003)

This figure depicts the different radar bands within the electromagnetic spectrum. It is shown to demonstrate how long the radar bands used on current SAR satellites are, and their positioning within the spectrum.

 


The DInSAR Process (H. Chang et al., 2003).

 

A picture of the Earth-View InSAR Atlantis 1999 software, showing the “main” page.

 

The initial format of an image captured from a satellite (JERS-1)

 

Part of the Coregistration Analysis, the small yellow squares represent tiepoints created using the EV-InSAR Atlantis software. Tiepoints should represent the same point on both the Master (top) and Slave (bottom) images.

 

Selecting a Control Point (the red cross) on both images to coregister the Master satellite image (top) to the external Digital Elevation Model (DEM). Note that the Master image has been “left mirrored” as can be seen along the river.

An interferogram. The European Space Agency (2004) defines an interferogram as ‘ a map of the difference of the distances from the two sources to any point. We can map in colour the ratio between the average of the two waves and one of them’. The image should portray waves (as above), showing that there is little noise in the interferogram.

 

The end product of using the EV-InSAR Atlantis software. This deformation map shows the change in ground’s vertical displacement between the time in which the two images were captured.