How to describe heavy rain falling on a lake and making ephemeral "pockmarks"
I am looking for a word which describes the pockmarks that heavy rainfall makes when it is falling on a lake.
Rain at Lake Constance by Rona-Keller / deviantart.com
You can use the word dimple, both as a noun and a verb.
n. transf. Any slight surface depression or indentation resembling the preceding, as a dip in the surface of land or a ripple on the water. [OED]
v. produce a dimple or dimples in the surface of:
rain began to fall, dimpling the water [OD]