The series of heatwaves we have been experiencing in Western Europe are the clearest sign of global warming caused by human activities, our emission of greenhouse gas in the atmosphere.
We can also combine land surface temperature from Sentinel 3 with those from previous satellites in order to develop long time series. And that’s what we do in the context of ESA’s climate program, the climate change initiative. We have recently released a 25 years climate data record of land surface temperature and the data indicate a stable increase of about 0.2 degrees celsius per decade on average at a global scale with strong regional variability.
Satellites are very useful as they permit the monitoring of different fire characteristics. From a risk assessment point of view, we can detect areas that are dry and prone to wildfire outbreaks, we can monitor actively flaming fires, smoldering fire, as well as burn area, the scar let on the ground by fire. We can monitor smoke plumes as well as trace gas in the atmosphere.
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