So in my home-brew world, the Gods basically put a giant, magical barrier around an entire continent. The gods do not interact with anything inside the dome, it operates in a way similar to an Earth-like planet.
Rules of the barrier:
- The barrier is semi-spherical and completely encapsulates the continent.
- Living things cannot pass through the barrier.
- Sunlight can enter and leave the barrier.
- Water cannot pass through the barrier, including water vapor.
- The barrier is a complete sphere that extends beneath the earth.
- The barrier is not perfectly spherical underground, being more shallow and extending 100 miles beneath the surface. The continent sits on one, unbroken tectonic plate, so the barrier does not move through fault lines. Bear in mind I am not too familiar with geography and the intricacies of plate tectonics, so if that it not possible, I would imagine that the barrier allows for the passage of earth/magma through it.
I have some experience with predicting climates and geography based on where a landmass is on a planet, assuming near-Earth characteristics, like east-west wind vortexes and mountains affecting desert formation. But seeing as this is a little more complicated (or maybe it isn't?) I wanted the opinion of the community.
How would the presence of this barrier affect the climate and geography of this continent differ from a similar landmass that lacks such a barrier?
Below is a picture that shows the continent in relation to its position on the planet, including scale in relation to a map the the United States.