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 have been highlighted through a number … Continue reading
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 1 419 operational satellites, and 374 … Continue reading
What is ocean acidification? Since the industrial revolution the oceans have absorbed approximately 50% of the CO2 produced by human activities (The Royal Society, 2005). Scientists previously saw this oceanic absorption as advantageous, however ocean observations in recent decades have … Continue reading
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, Advanced Spaceborne Thermal Emission and Reflection … Continue reading
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 release approximately identical amounts of greenhouse … Continue reading
2016 is likely to be the year of agri-tech for remote sensing. Its potential has been highlighted for some time, but last year its call was loud and clear. Agri-tech is the use of technology to improve agriculture production in … Continue reading
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 in land use and land cover. … Continue reading
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 with a scheduled launched for 2022. … Continue reading
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, where a higher spectral resolution has … Continue reading
Spatial resolution is a key characteristic in remote sensing, where it’s often used to refer to the size of pixels within an acquired image. However this is a simplification as the detector in the satellite doesn’t see the square suggested … Continue reading
