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 near Toledo. This is something that … Continue reading
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 it on an image. However, this … Continue reading
June 8th is World Oceans Day. This is an annual global celebration of the oceans, their importance and how they can be protected for the future. The idea of a World Ocean Day was originally proposed by the Canadian Government … 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
With spectacular images of an algal bloom in the Baltic Sea, ESA’s Sentinel-2A has announced its arrival to the ocean colour community. As we highlighted an earlier blog, Sentinel-2A was launched in June predominately as a land monitoring mission. However, … Continue reading
June’s been a really busy month for me on the world’s oceans. I’ve not actually been out on the water, but flying over it having attended both the World Ocean Summit and the International Ocean Colour Science (IOCS) meeting. Both … Continue reading
Last week NASA, NOAA, USGS and the US Environmental Protection Agency announced a $3.6 million partnership to use satellite data as an early warning system for harmful freshwater algae blooms. An algae bloom refers to a high concentration of micro … 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
We’re celebrating science in this blog, as it’s British Science Week in the UK! Despite its name British Science Week is actually a ten day programme celebrating science, technology, engineering, and maths (STEM). The week is co-ordinated by the British … Continue reading
Satellite images are a kaleidoscope of colours, all vying for attention. It’s important to be clear what the colours are showing, and more importantly, what they may not be showing, to interpret the image correctly. For example, a patch of … Continue reading
