How did scientists establish that Antarctica was losing ozone?
A surprising measurement can be an instrument problem or an important discovery. In the Antarctic ozone investigation, ground observations, satellite measurements, and later field research answered different questions about the decline. A long record established a change; other observations helped map its extent and investigate its cause.
Questions you could explore
- Why could no single kind of measurement answer every question?
Start reading
- NASA Ozone WatchOzone hole history facts
NASA recounts the measurement history and investigations of the Antarctic ozone hole.
- British Antarctic SurveyMarking 40 years since the discovery of the ozone hole
The British Antarctic Survey gives a historical account of the discovery and the checking of unexpected observations.
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