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EarthcacheDenali's Transformation--Fata Morgana

A cache by Cav Scout, Platinum EarthCache Master     Hidden: 9/13/2005

Size: Size: Not chosen (Not chosen)     Difficulty: 5 out of 5     Terrain: 1 out of 5 (1 is easiest, 5 is hardest)


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N/S ? ??.??? W/E ??? ??.??? 
In Alaska, United States

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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.

 


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Additional Hints (Decrypt)

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)

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

Find...

Logged Visits (34 total. Visit the Gallery (53 images))

Found it19     Didn't find it2     Write note5     Archive2     Unarchive2     Post Reviewer Note1     Enable Listing2     Publish Listing1     

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Cache find counts are based on the last time the page generated.

 January 31 by Capra Hircus (2101 found)
Last weekend the conditions seemed conducive for the phenomenon to occur, so we made several trips to GZ. The mirage was not as vivid as I had hoped and we easily determined that it is FAR more visible from the clear air at higher elevations. This weekend we got to see one that was much more vivid from up above the Campbell Creek Gorge. To bad we only had the low-res camera with us (not a fancy rig like LBK)! Now that's a true bridge to nowhere!

View This Log
Photo Fata from the Gorge Rim
Photo Photo Needing Transformation!

 January 30 by Polgera (1571 found)
I've been waiting for a better pic on this one and today was a great opportunity. However, sadly, I forgot my camera and all we had was the GPS comera. The circled area actully looked like a broken bridge. It was a beautiful day to be in Alaska.

View This Log
Photo Broken Bridge Fata
Photo Trying to get me in the pic

 January 23 by Ladybug Kids (3071 found)
Single digit temperatures along the cost coupled with a temperature inversion that caused temperatures in the 20s on the Upper Hillside of Anchorage set up perfect conditions for Fata Morgana activity this evening. Attached are photographs of a distorted Mt. Illiamna and Mt. Redoubt.

View This Log
Photo Mt. Illiamna w/ a few Extra Hoodoos
Photo Distorted Mt. Redoubt & Western Illusionary Mesas

 January 9 by broccili (127 found)
I was not at the prescribed coordinates, nor did I take a picture of myself with GPS in hand. EDIT [I got an e-mail from the CO, and I get to log it as a find! Thanks!]

Thanks for the EarthCache - learned lots about it, and maybe next time I will be better prepared for higher quality pictures, as well as taking my self-portrait.

Rob

[This entry was edited by broccili on Sunday, January 31, 2010 at 9:19:23 PM.]

View This Log

Photo Across the Inlet
Photo Mt. Susitna
Photo Denali
Photo Denali & Foraker

 January 9 by Ladybug Kids (3071 found)
This afternoon featured some really incredible fata morgana illusions of the Alaska Range that I captured with my digital camera. Clear cold days like today are the idea time to watch for the fata morgana. Best results are obtained by underexposing the image 2/3 to 1 full stop if your camera can be programmed to do that. I set the camera on a tripod, dialed down the speed to ISO 80, bracketed the exposure, and zoomed between 4x and 16x. The attached images could be digitally enhanced, but I wanted to post the raw images here so folks can get some idea of how to capture this fascinating natural phenomenon with their cameras.

View This Log
Photo Denali (20,320') and Mt. Hunter (14,573')
Photo Foraker (17,400'), Hunter, & Denali (l to r)
Photo Sultana (Mt. Foraker)
Photo Tordrillo Mountain Fata Morgana to the West

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Current Time: 2/10/2010 12:34:55 AM (GMT-08:00) Pacific Time (US & Canada) (8:34 AM GMT)
Last Updated: 1/31/2010 9:19:23 PM (GMT-08:00) Pacific Time (US & Canada) (5:19 AM GMT)
Rendered: From Database
Coordinates are in the WGS84 datum


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