Weather around the World

We are truly a global community at the moment, watching COVID-19 numbers rise and fall, whilst largely confined to our own localities - but what is the weather like elsewhere?

 

There is a big area of high pressure dominating the weather across Europe at the moment, so things from the UK across into Italy and Croatia are looking fine and settled with plenty of sunshine. 

How Will COVID-19 Affect the Weather Forecast?

Aeroplanes provide important information about the current state of the atmosphere, and have done since the beginning of commercial flights. The more precisely the initial conditions of the atmosphere are known, the more accurate the forecast can be. With COVID-19 triggering such sudden and dramatic reduction in the number of flights, there is a chance that the weather forecast could become slightly less accurate over the coming months.
 

Observed reductions in NO2 emissions: a silver-lining from COVID-19


Over the past week, the European Space Agency released data that provides a welcome positive in amidst the challenge of COVID-19. Data from the Copernicus Sentinel-5P satellite has shown a reduction in nitrogen dioxide (NO2) over both Italy and China, as each country has brought in stringent measures to tackle the pandemic.

Unusual Arctic Ozone Hole Develops

A large area of ozone depletion has taken place over the Arctic. Usually in early spring, as the sun climbs higher in the sky, the temperature in the stratosphere above the Arctic increases and this prevents the chemical reactions that break up ozone. However, this year a large area of ozone has been eroded and this loss has intensified over the past few weeks. 
 
Ozone is a naturally occurring gas. Over 90% of it is found in the stratosphere, between 10 and 50 kilometres above the Earth, in what’s known as the ozone layer.