Clouds like drift ice

What does the photo above look like? I thoght it was like the sea covered with drift ice.

Actually they are the clouds floating in the sky. There are various names for clouds depending on their shape. So what should I call this one?

The cloud appeared last Tuesday when the weather was good. It looked like a huge column standing.

The clouds themselves are just water drops, so after all the shape of the clouds seems to be the shape of the air reflecting the physical condition of its humidity, density and temperature.

It is fascinating that the air draws various shapes like this. I am not tired of seeing clouds in the sky, like the flame of bonfires.

T.S