Shadow Trident in Clouds

On April 15, I had the chance to observe a shadow trident above the pylon of our wind gauge on Wendelstein mountain (1835 m). When an observer is situated in the shadow of the pylon itself, there are regions above the pylon from where no light reaches the observer`s eye. If there is a “screen” of water droplets (clouds) or ice crystals (diamond dust) above the pylon, these regions can become visible as shadow rays. In my observation, cumulus clouds repeatedly passed rapidly over the top of the mountain and the shadow rays were briefly visible several times.

Posted by Claudia Hinz

Posted on May 13, 2011, in observations, shadows and rays and tagged . Bookmark the permalink. Leave a comment.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: