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

Algae Starting To Bloom

Download this page in PDF format Algae have been making the headlines in the last few weeks, which is definitely a rarely used phrase! Firstly, the Lake Erie freshwater algal bloom has begun in the western end of the lake … Continue reading

If no-one is there when an iceberg is born, does anyone see it?

Download this page in PDF format The titular paraphrasing of the famous falling tree in the forest riddle was well and truly answered this week, and shows just how far satellite remote sensing has come in recent years. Last week … Continue reading

Locusts & Monkeys

Download this page in PDF format Spatial resolution is a key characteristic in remote sensing, as we’ve previously discussed. Often the view is that you need an object to be significantly larger than the resolution to be able to see … Continue reading

Monitoring Fires From Space

Download this page in PDF format Monitoring fires from space has significant advantages when compared to on-ground activity. Not only are wider areas easier to monitor, but there are obvious safety benefits too. The different ways this can be done … Continue reading

Earth observation satellites in space in 2016

Download this page in PDF format If you’d like the 2017 update, please click here. Earth Observation (EO) satellites account for just over one quarter of all the operational satellites currently orbiting the Earth. As noted last week there are … Continue reading

Four Fantastic Forestry Applications of Remote Sensing

Download this page in PDF format Monitoring forest biomass is essential for understanding the global carbon cycle because: Forests account for around 45 % of terrestrial carbon, and deforestation accounts for 10% of greenhouse gas emissions Deforestation and forest degradation … Continue reading

Reprocessing Data Challenges of Producing A Time Series

Download this page in PDF format Being able to look back at how our planet has evolved over time, is one of the greatest assets of satellite remote sensing. With Landsat, you have a forty year archive to examine changes … Continue reading

Ocean Colour Cubes

Download this page in PDF format It’s an exciting time to be in ocean colour! A couple of weeks ago we highlighted the new US partnership using ocean colour as an early warning system for harmful freshwater algae blooms, and … Continue reading

Goodbye HICO, Hello PACE – Ocean Colour’s Satellite Symmetry

Download this page in PDF format Ocean colour is the acorn from which Pixalytics eventually grew, and so we were delighted to see last week’s NASA announcement that one of their next generation ocean colour satellites is now more secure … Continue reading