|
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
Dear members of this mailing list,
recently we received an interesting photograph of a rainbow that is
caused by sunlight reflected on a water surface. Visible is the common
primary bow, the secondary bow and the "mirror-bow". I know only 5 or 6
photographs that show these unusual rainbows. The brightness is about
1/3 of the primary bow. The photo was taken at the coast of the northern
sea during low tide. There were a lot of puddles with calm water,
reflecting the sunlight.
You can find this remarkable photo on our website:
http://members.tripod.com/~Regenbogen2/spiegel/spiegel.htm
I made a drawing that shows the development of the rainbow, caused by
reflected sunlight, with different sun elevations (also on the website).
If you know similar photographs, let me know.
I think it is possible that also halos can be caused by reflected
sunlight. E.g. halos in ice-fog above a frozen lake. Probably also
secondary halos to the subsun do exist. What do you think?
Regards,
Mark Vornhusen (Arbeitskreis Meteore e.V.)
Homepage AKM: http://www.meteoros.de
|