prize1-7, Exercise 1: Observations and satellites

Model answer:

Any four of: surface weather stations, weather balloons (radiosondes), ships and buoys, aircraft reports, weather radar, satellites. A geostationary satellite stays above one spot on the equator and watches the same part of the Earth continuously, so it can show cloud movement. A polar-orbiting satellite flies much lower over the poles and scans a new strip of the Earth on each orbit, giving more detailed profiles but not a continuous view of one place.