Why does cold air seem to optically zoom in far-away objects?

AI Thread Summary
Cold air can create optical illusions that make distant objects, like mountains, appear larger and closer compared to warm weather conditions. This effect is attributed to temperature gradients acting like a lens, enhancing visibility and altering perceived size. In contrast, warm air tends to create haze, diminishing clarity and distance perception. Participants in the discussion suggest taking photos to compare the differences in appearance between cold and warm days. Overall, cold air conditions can significantly influence how we perceive distant landscapes.
Fanny Viksten
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I have noticed that cold air makes far away objects, such as mountains, appear closer than they do in warm clear weather. Does anyone have an explanation for this?
 
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Fanny Viksten said:
...appear closer ...
How exactly? Taller? Or clearer?
 
A.T. said:
How exactly? Taller? Or clearer?
They appear larger than when the air is warm. I already stated comparison to a CLEAR warm day, as heat can make the air hazy and of course that would affect their visibility.
 
Try taking photos to compare?
 
Fanny Viksten said:
They appear larger than when the air is warm. I already stated comparison to a CLEAR warm day, as heat can make the air hazy and of course that would affect their visibility.
A temperature gradient can act like a lens, and make objects seem taller.
 
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