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What is a Mirage?
Transcript of What is a Mirage?
Types of Mirages.
What is a Mirage?
2 Major Types of Mirages
-Fata Morgana (Type of Superior Mirage)
- The formation of this weather phenomenon is due to the speed in which the light travels through the different temperatures.
-Cold air is known to be more thicker/ denser than hot air, which allows the light to refract and bend in different directions.
- They usually vary in sizes from the apparent size of the moon or the sun, and generally come from objects a few kilometers away.
The light is directed upward when the air near the ground is warmer than the air above the ground.The image is most likely to be formed as a reflection of the sky, which can also be interpreted as an image of water. This mirage usually appears upside down, which adds to the affect of water or oil.
The word “Inferior“ comes from the result of the Mirage being seen underneath the original object.
- Inferior Mirages are known to be less stable, due to the temperature contrasts of hot and cold air. When mixed it gives off a turbulence, which looks like it is vibrating.
- Some mirages may mix with other mirages, as there may be multiple temperature layers, creating a double image.
In this Inferior mirage you see the image has a water/ oil like puddle appeared on the road, which essentially is the reflection of the sky. The shimmering effect is more commonly known as a heat haze.
The opposite of an Inferior Mirage, where the air near the ground is much cooler than that above the ground, refracting the light downward.These can be right side up or upside down, depending on the distance of the actual object, and the temperature.
They are less common because of the “temperature inversion” – which is the odd temperature arrangement of having cooler air closer to the ground, with warmer air above it.
They are also more stable than Inferior Mirages.
This looks as though the image is above the object, which is where the name “Superior” comes from.
Superior Mirage where the picture is seen above the original object.
Basically known as fast- changing mirages because of the way the light bends into an arc rather than bending upward or downward.
Their occurrence is frequently more in the Polar Regions.
They can also only be seen within an atmospheric duct, or observed at any altitude within the Earth’s atmosphere including from mountaintops or airplanes.
Essentially a Fata Morgana turns a horizon into a image of a vertical wall.
The Vertical Wall above the horizon that is caused by a Fata Morgana, a type of Superior Mirage.
By: Rianne Isip & Anasthasia Fallorin
Science Presentation Topic:
-How are they formed?
-What are they?
-Where are most mirages seen?
-Effect on Society?
Effect on Society?
-Many people when they first experience a mirage believe it is nothing but a mere hallucination. When in reality it is the refraction of light, that creates an optical illusion.
-Mirages can also be caught on camera, due to the fact that there is a real image present, in comparison to hallucinations which do not form a legitimate image.
Superior Mirages are commonly formed in the Polar Regions due to the unique layer of temperatures that allow these rare mirages to be formed.
Inferior Mirages can be found in most places that have warmer heat,particularly deserts and dry areas.