|
meteoptic-l [ät] ursa.fi
message archive
This is meteoptic-l [ät] ursa.fi message archive.
Note, your can reply the messages on this page only if your
are already subscribed the list.
» To the end of the list/message
> Anyway, the pictures are at:
>
> http://www.weather-photography.com/tmp/w-422-00.jpg
> http://www.weather-photography.com/tmp/w-422-01.jpg
> http://www.weather-photography.com/tmp/w-422-02.jpg
> http://www.weather-photography.com/tmp/w-422-03.jpg
>
> The antisolar iridescence in the pictures is well away from the
antisolar
> point, about 20 to 30 degrees.
>
> It's a bit challenging to detect the cloud irisation in the photos, but
> it's there.
It is indeed in all the images (for those who doubt, enhance the
colour saturation in PhotoShop).
Well spotted Harald! It would be interesting to look for polarisation
effects by taking dual images with a filter rotated 90º. These could be
stronger and more variable towards the antisolar direction (as with the
glory) than in normal iridescence.
Les
| 
