A global network of observation stations measures the round trip time of flight of ultrashort pulses of light to satellites equipped with retroreflectors.
powerful source of data for studies of the solid Earth and its ocean and atmospheric systems
Answer:
Explanation:
An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface. The Earth's major air masses originate in polar or subtropical latitudes.
Convection is correct i think
With what issue? Cause you didn’t write what there doing
It depends on the location of the place and how populated it is