How to Measure Heights From Space?

Download this page in PDF format Accurately measuring the height of buildings, mountains or water bodies is possible from space. Active satellite sensors send out pulses of energy towards the Earth, and measure the strength and origin of the energy … Continue reading

Temporal: The forgotten resolution

Download this page in PDF format Temporal resolution shouldn’t be forgotten when considering satellite imagery; however it’s often neglected, with its partners of spatial and spectral resolution getting the limelight. The reason is the special relationship spatial and spectral has, … Continue reading

The Reality of Gravity

Download this page in PDF format Space debris has hit the entertainment headlines recently, with the film Gravity winning various awards; it deals with the aftermath of a space debris collision with the International Space Station. So is the film … Continue reading

Cresting Wavelength 2014

Download this page in PDF format Today is the final day of the Remote Sensing and Photogrammetry Society’s (RSPSoc) annual Wavelength Conference for students and early career professionals in remote sensing and photogrammetry. This year, Pixalytics was one of the … Continue reading

How Many Satellites are Orbiting the Earth?

Download this page in PDF format As we discussed last week, the European Space Agency (ESA) Sentinel-1A satellite is due to be launched tomorrow night from Europe’s Spaceport in Kourou, French Guiana. This got me wondering, how many satellites are … Continue reading

Copernicus ready for lift off!

Download this page in PDF format The first satellite of the European Union’s Copernicus project, Sentinel-1A, is due to be launched next Thursday, April 3rd. The project aims to create a constellation of satellites providing a range of Earth Observation … Continue reading