Skip to content

Denali's Transformation--Fata Morgana EarthCache

This cache has been locked, but it is available for viewing.
Difficulty:
5 out of 5
Terrain:
1 out of 5

Size: Size:   not chosen (not chosen)

Join now to view geocache location details. It's free!

Watch

How Geocaching Works

Please note Use of geocaching.com services is subject to the terms and conditions in our disclaimer.

Geocache Description:


Photobucket

This is a great spot to witness the phenomina of "Fata Morgana" On some cold clear winter days I have witnessed it from here! Good Luck!

ATTENTION! THERE MUST BE AN ACTUAL FATA MORGANA IN THE PICTURE TO COUNT THIS AS A FIND. TAKING A PICTURE AT THE LISTED COORDINATES WITHOUT THE FATA MORGANA DOES NOT COUNT AS A FIND. The Fata Morgana will be best viewed across cook inlet on one of those crisp, cold, winter mornings Denali is visible. The foothills below Denali seem to be prone to this. It really is amazing on the days that it is extreme. I had little information about Fata Morgana before I decided to try to make it a earth cache... Here are some thoughts by other, perhaps more qualified folks on this phenomina.

"Fata Morgana" br By Henry Wadsworth Longfellow

And forever before me gleams, The shining city of song, In the beautiful land of dreams.

It is gone, and I wonder and wait for the vision to reappear.

And some less poetic thoughts... As described by T. Neil Davis in the Alaska Science Forum September 1, 1978-- Fata Morgana, also known as Morgan le Fay, was a fairy enchantress skilled in the art of changing shape. In one traditional story she was King Arthur's sister and learned many of her skills from Merlin the Magician. A special type of complex mirage, one that sometimes gives the impression of a castle half in the air and half in the sea, is named after Fata Morgana. She was known to live in a marvelous castle under the sea. Sometimes the enchantress made this castle appear reflected up in the air, causing seamen who mistook it for a safe harbor to be lured to their deaths. Photobucket

A Fata Morgana is a mirage, an optical phenomenon which results from a temperature inversion with warmer air above cooler air. Fata Morgana is a complexe mirage with few inverted and erect images. The images which are created by Fata Morgana show the alterations of compressed and stretched zones.

Fata Morgana is also a fast changing mirage.

In calm weather, the undisturbed interface between warm air over cold dense air near the surface of the ground may act as a refracting lens, producing inverted and erect images. Photobucket

The fata morgana mirage is one that can occur only where there are alternating warm and cold layers of air near the ground or water surface. Instead of traveling straight through these layers, light is bent towards the colder, hence denser, air. The result can be a rather complicated light path and a strange image of a distant object. A fata morgana actually is a superposition of several images of one object. Typically one image is upright more or less above two inverted images that may be mingled together. The images may undergo rapid changes as the air layers move slightly up and down relative to the observer. In Alaska the best chance of seeing the relatively rare fata morgana is in winter when temperature inversions develop in the larger valleys. When seeing a complex mountain image out across a valley or bay one can attempt to sort out in the mind the paths that the light rays must have taken. Perhaps it's best just to acknowledge that it is Morgan le Fay beckoning.

To log this EartheCache:

1. Fata Morgana's are usually seen after a cold night. How does this make objects on the horizon appear?

2. A Fata Morgana is caused by what?

3. Finally, attach a picture of yourself (face included) and the Fata Morgana to log a find. Photobucket

Post your pictures as to get credit for the find. Good luck! In calm weather, the undisturbed interface between warm air over cold dense air near the surface of the ground may act as a refracting (A transparent optical device used to converge or diverge transmitted light and to form images) lens, producing an upside-down image, over which the distant direct image appears to hover. The first mention of 'Fata Morgana' in English, in 1818, referred to such a mirage noticed in the Strait of Messina, between Calabria and Sicily.

Additional Hints (Decrypt)

Gur fbhgurea nynfxn enatr bss gur abegurea synax bs Sver Vfynaq nyfb ner fhowrpg gb Sngn Zbetnan ng gvzrf. Erzrzore Pbyq..Pyrne...Pnyz.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)