Jovian Sky And Surface

In Poul Anderson's Three Worlds To Conquer and "Hunters of the Sky Cave," Jupiter has a solid surface.

In "Hunters...," Flandry, descending, sees:

a glowing, multi-colored planetary surface;

moving dark storms bigger than Terra;

thousand-kilometer-long clouds of ammonia crystals;

the blue and green streaks of free radicals;

lightning in a purple sky;

sodium explosions;

allotropic ice crumbled, then lifted, by methane ocean waves flattened by pressure and gravity;

a vast plain where organisms neither plant nor animal lash at hundred-meter-long flying ribbons;

colored, singing bubbles on a red wind;

an immense, blue, low-built, artificial structure;

flashing white energy;

Ymirites flying, or rather swimming, in the dense atmosphere, some on their own wings, others in gliders.

He also feels and hears titanic winds.