Reflected crepuscular rays - OPOD

Last updated on September 16, 2023

Reflected Crepuscular Rays: A Phenomenon of Light and Water

Have you ever witnessed the breathtaking beauty of crepuscular rays streaming downwards from the hidden sun, piercing through the clouds? While this sight is awe-inspiring on its own, there is another remarkable phenomenon that occurs when these rays encounter calm and smooth water surfaces. These are known as reflected crepuscular rays, and they create a mesmerizing display of light and reflection.

The Dance of Light

When downward rays strike a tranquil body of water or a smooth wetted river bank, they are reflected back upwards. Similar to their downward counterparts, these reflected rays appear parallel. However, due to perspective, they appear to diverge from a point below the horizon, as far below as the sun is above it.

Captivating Visual Effects

To truly appreciate the enchanting nature of reflected crepuscular rays, let's delve into the details of their appearance. In certain instances, as the rays approach the camera, they seem to widen before gracefully retreating overhead. This widening effect adds an extra dimension to the scene, enhancing its ethereal beauty.

A Rare Sight

Reflected crepuscular rays are a relatively uncommon sight, as they require specific conditions to occur. The water's surface must be exceptionally calm and smooth, acting as a mirror for the incoming rays. Furthermore, the presence of clouds partially obscuring the sun is crucial for the formation of both downward and reflected crepuscular rays.

Atmospheric Optics Delight

As enthusiasts of atmospheric optics, we are continually fascinated by the interplay between light and our natural surroundings. Reflected crepuscular rays offer a unique opportunity to witness this dance of light in an unexpected way. The convergence of water and air creates a canvas for nature's artistry, captivating our senses and evoking a sense of wonder.

A Photographer's Dream

For photographers and nature enthusiasts alike, capturing the elusive beauty of reflected crepuscular rays presents a thrilling challenge. The ever-changing conditions and the ephemeral nature of this phenomenon make it a sought-after subject for artistic expression. The ability to freeze this fleeting moment in time allows us to share its magic with others.

Finding Reflected Crepuscular Rays

If you're eager to witness reflected crepuscular rays firsthand, keep an eye out for calm bodies of water or smooth wetted river banks during sunset or sunrise. These are the prime locations and times for this ethereal display. Patience and a keen eye are key, as these rare moments can be fleeting and require careful observation to fully appreciate.

The Magic of Nature's Mirrors

Reflected crepuscular rays are a reminder of the remarkable interconnectedness of the elements in our natural world. Water, acting as a mirror, not only reflects the beauty of the sky above but also transforms it into a breathtaking spectacle. This interaction between light and water exemplifies the intricate tapestry of nature's wonders.

Embracing Wonder and Awe

In a world filled with hustle and bustle, taking a moment to pause and appreciate the wonders of our environment can be truly rejuvenating. Reflected crepuscular rays serve as a gentle reminder that there is beauty to be found in unexpected places and that nature's mysteries are waiting to be discovered by those willing to look up and marvel.

Reflecting on Reflected Crepuscular Rays

As we explore the realm of atmospheric optics, it is important to remember that even within familiar phenomena, there are hidden treasures waiting to be revealed. Reflected crepuscular rays offer a fresh perspective on the interplay between light, water, and our perception of the world around us. So, next time you find yourself near a calm body of water during sunrise or sunset, take a moment to search for these elusive rays and allow yourself to be captivated by their enchanting dance.

Reflected Rays

Images by Boris Borisovich (Snowman-pro) at the mouth of the Varzuga river famed for its salmon fishing and draining into the White Sea, Kola Peninsula, Russia.

Rays stream downwards to the water from the sun hidden behind the clouds.

More strangely, rays also radiate upwards from the water. These are rare reflected crepuscular rays.

Images ©Boris Borisovich, shown with permission

Downward rays striking calm and smooth water or a smooth wetted river bank are reflected back upwards.

The reflected rays, like the downwards ones are all parallel. Perspective makes the upward going reflected rays appear to diverge from a point as far below the horizon as the sun is above it.

In the top image the rays visibly appear to widen as they approach the camera and before they retreat overhead.

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Reference Atmospheric Optics

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