How is the ozone layer monitored?

The ozone layer is monitored both by satellites and ground-based resources that are dedicated to observing the destruction of stratospheric ozone. The main satellite that monitors the ozone layer is the TOMS (Total Ozone Mapping Spectrometer) satellite.

What has the worldwide monitoring of ozone revealed?

Worldwide monitoring has shown that stratospheric ozone has declined for at least two decades, with losses of about 10 percent in the winter and spring and 5 percent in the summer and autumn in such diverse locations as Europe, North America, and Australia.

What has the world wide monitoring of ozone revealed?

discovered the ozone hole over the Antarctic. The Montreal Protocol of 1987 has been successful. The amount of ozone-depleting substances is now slowly going down (about 1 per cent per year) after reaching a peak in the late 1990s. It also shows the close linkage between ozone depletion and climate change.

Why is it important that scientists monitor the amount of carbon dioxide in the atmosphere?

Monitoring global CO2 concentrations allows scientists to keep tabs on the progress they’re making in real time, and the speed at which the temperature targets are approaching, under the estimated carbon budget.

Why are scientists concerned with ozone depletion in the stratosphere?

The stratospheric ozone layer absorbs ultraviolet (UV) radiation, preventing dangerous UV rays from hitting Earth’s surface and harming living organisms. But, ozone depletion is also concerning because it directly impacts the health of humans, and other living organisms.

When did scientists discover ozone depletion?

May 16, 1985
In the scientific journal Nature on May 16, 1985, three scientists from the British Antarctic Survey announce their detection of abnormally low levels of ozone over the South Pole.

When did Scientist discover the ozone hole?

In the 1980s, a team of scientists shocked the world when they detected a hole in the layer. In 1977, 24-year-old Jonathan Shanklin saw an advert for a job at British Antarctic Survey (BAS), which read: Wanted: physicist with an interest in meteorology and programming skills.

How do we measure ozone layer depletion?

Dobson spectrophotometers can be used to measure both total column ozone and profiles of ozone in the atmosphere. Total ozone measurements are made by comparing a frequency of the ultraviolet spectrum strongly absorbed by ozone with one that is not. Measurements can be based on light from the sun, moon, or stars.