Sentences with phrase «form near the poles»

These clouds, technically called polar mesospheric clouds, typically form near the poles and migrate toward the tropics.

Right now much of the U.S. is in the grip of a polar vortex, which is pretty much what it sounds like: a whirlwind of extremely cold, extremely dense air that forms near the poles.»

Not exact matches

Observations made by NASA's Lunar Prospector orbiter in the late 1990s identified hydrogen - rich areas near the moon's poles but could not determine whether that hydrogen was bound up in water or was present in some other form.

However, the upwelling of cold water off of the east coast of South American is also part of the meridional overturning of the ocean that begins with the sinking of cold salty water near the poles (thermohaline circulation) that forms the characteristic deep water found at the bottom of the major oceans.