several thousand feet deep
They are usually high....
A high-level cloud type.
A cirrostratus cloud is a high, thin, stratiform made of ice crystals.You can find more information about cirrostratus clouds online or in books at your local library.
water
They are Cirrostratus an Cirrus.
A cirrostratus cloud is a high-level cloud, typically found above 20,000 feet in the atmosphere. It consists of thin sheets of ice crystals that cover large portions of the sky and can often produce halo phenomena like a sun or moon halo.
This type of cloud is known as cirrostratus. It is located in the upper levels of the atmosphere and often creates a halo effect around the sun or moon. Cirrostratus clouds are composed of ice crystals due to the low temperatures at high altitudes.
cirrostratus
Cirrostratus
Cirrostratus
Cirrostratus
Cirrostratus