Sentences with phrase «altitude aircraft observations»

The evidence for this is a mountain of spectroscopic data about the behaviour of the greenhouse gases from laboratory observations, ground level observations, high altitude aircraft observations and more recently satellite observations.

Not exact matches

Observations of atmospheric carbon dioxide made by aircraft at altitudes between 3 and 6 kilometers (10,000 - 20,000 feet) show that seasonal carbon dioxide variations have substantially changed during the last 50 years.

These methane measurements come from Hiaper Pole - to - Pole Observations, which uses aircraft loaded with scientific instruments flying long distances at varying altitudes.

Although modern remote sensing by satellites, aircraft and ground sensors is an increasing source of atmospheric data, none of these systems can match the vertical resolution (30 m (98 ft) or less) and altitude coverage (30 km (19 mi)-RRB- of radiosonde observations, so they remain essential to modern meteorology.