They can also have approximately isothermal (or at any rate, nonconvective) lower regions, when layers considerably more opaque to sunlight than to
thermal radiation shield them from further insolation.
Not exact matches
There are also metal (
thermal)
radiation shields sitting intermediately between the inner very cold area and the outside which limit the heat flow from the outside, much as greenhouse gases in the atmosphere, limit the rate at which the surface cools.
Y. Ishikawa, S. Sawada, «Effective use of
radiation and
thermal shields in a vacuum furnace,» J. Phys.