Both featured synchronous
observations at different altitudes, including in the latter case an extension by means of automated instruments flown by balloon to 1500 meters — the balloon flights were made both from the Lone Pine site at the foot of the mountain and from the summit.
Not exact matches
Polar satellites, which orbit the earth from pole to pole
at an
altitude of approximately 515 miles, give closer, more detailed
observations of the temperature and humidity of
different layers of the atmosphere.
Notice how your body and mind feel when you spend time
at different altitudes, such as hiking in the mountains or walking on the beach, and allow these
observations to guide where you spend your free time.