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@TomSlavkovsky please check and reply :)
I've constructed two new Copernicus pollution forecasting replacement overlays:
Air quality NO2 [no2] - The standard version of the air quality overlay has some typical problems (which seem to affect most standard windy pollution overlays) namely that it's strongly non-linear and the representation is highly distorted in that it dramatically over emphasizes the very low-levels of pollution, whilst limiting or cutting-off the visual detail with respect to the highest levels of pollution. It's a strange way to construct an overlay as it will implicitly strongly bias the forecast information, which will lead to incorrect perception of the forecast hazard level. To rectify this I've made completely linear the display below 10µg/m³. The rest of the replacement overlay is not equally linear to this, but this is done to cut down on the complexity of the resulting overlay setting (and due to some other implicit range limitations within this overlay). It now shows things in their correct proportions with a minimum of visual distortion. So although this new overlay appears to show less emphasis it is in fact showing the forecast pollution levels in the linearly correct relative proportions, both at the low-end level whilst also making clear where serious pollution problem-areas are actually located. The standard Windy overlay looks positively 'bloated' in comparison simply because it's showing the forecast information strongly out of the correct relative proportions and thus will distort a casual user's perception of where the real air-quality hazards exist.
This new Air Quality setting is available here:
Example of Air Quality overlay:
The very unhealthy air-quality in the heart of China is simply disgusting.
The other new overlay is ...
Aerosol [aod550] - This overlay was much more straight forward as the standard version had fewer problems with it. I've ensured a low visual distortion exists within a linear overlay depiction below 1AOD (it's still linear above 1AOD, but with a different linear increment to reduce the complexity of the shading). Plus I've changed the colors and increments to better display were the real problem areas are located and their relative proportions and detail.
The new Aerosol setting is here:
Examples of Aerosol
In summary, both of these new overlays are easier to read or assimilate at a glance to develop a correct sense of the pollution proportions and their relative hazard level.
I'm still developing a PM2.5 replacement overlay which will be much more complicated due to the range scale of the information within it.
Severe weather watch
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I hope my request counts, for it is strictly for sentimental reasons..... 😊
During a couple of very brisk spring days and nights early 2018, I undertook the transfer of my very first sailboat.
As I was a completely novice sailor I had not heard of Windy and so, with only the most basic weather info, I started the maiden voyage. Little did I know that I was going to be in for much more than I had asked for!
I have records of the GPS path sailed, but none of the wind conditions. It would mean a lot to be able to see those weather data....
Windy maps on Ouest-France website. They use often Windy map, this time for the storm Miguel which is predicted tomorrow on french coasts.
They show 5 maps from Windy in this article.
CEPMMT means ECMWF in french.