Optical Imagery is Eclipsed!

Download this page in PDF format Last week’s eclipse gave an excellent demonstration of the sun’s role in optical remote sensing. The image to the left was acquired on the 21st August by the Visible Infrared Imaging Radiometer Suite (VIIRS) … Continue reading

The cost of ‘free data’

Download this page in PDF format Last week, the US and Japan announced free public access to the archive of nearly 3 million images taken by ASTER instrument; previously this data had only been accessible with a nominal fee. ASTER, … Continue reading