- Chlorofluorocarbons | NASA Earthdata
CFCs are very stable chemical compounds, used in refrigerants, solvent, and (in the past in the U S ) aerosols, which release chlorine (important) and fluorine (less important) into the upper atmosphere In the stratosphere, CFCs are photolyzed (by incoming solar UV) to form carbon dioxide, CO2,
- Industrial Emissions | NASA Earthdata
GHGs include carbon dioxide, methane, nitrous oxide, chlorofluorocarbons (CFCs), ozone (O 3), and water vapor (H 2 O) Remotely sensed greenhouse gas data, such as the data collected by NASA’s Earth-observing satellites, are used in atmospheric models to estimate the sources and sinks of these gases
- Dr. Qing Liang | NASA Earthdata
The culprit was determined to be ozone-destroying substances (ODSs), such as CFCs, HCFCs, carbon tetrachloride (CCl 4), methyl chloroform (C 2 H 3 Cl 3), halons, and methyl bromide (CH 3 Br), that are emitted at the Earth’s surface and get swept up into the stratosphere When exposed to intense UV light in this part of the atmosphere, ODSs
- Trace Gases Trace Species | NASA Earthdata
Trace gases in the atmosphere that do not occur in large quantities but are significant to life on Earth or are important constituents of the chemical cycles in the atmosphere Definition source: European Space Agency
- A New Pole Hole | NASA Earthdata
Starting in the 1970s, scientists had suspected that the ozone layer might be at risk Chlorine-based compounds known as CFCs, very stable and long-lived on Earth’s surface, were slowly making their way into the upper atmosphere, where the additional UV light broke them apart into highly reactive chlorine molecules that tear ozone molecules
- New Instrument Provides Hourly Measurements of Atmospheric Pollutants . . .
As this quote suggests, observations from sensors such as the Ozone Monitoring Instrument aboard NASA's Aura satellite, the agency's third flagship Earth Observing System satellite mission behind Terra and Aqua, have been critical for measuring criteria pollutants such as O 3, NO 2, SO 2, and ozone-destroying chlorofluorocarbons (CFCs)
- Atmospheric Ozone | NASA Earthdata
Atmospheric Ozone is one of the most important trace gases in our atmosphere that both benefits and harms life on Earth High ground-level ozone amounts contribute to poor air quality, adversely affecting human health, agricultural productivity, and forested ecosystems Ozone absorbs infrared radiat
- 3 7 2018 Volcanoes and Climate Change : Feature Articles - Earthdata
chlorofluorocarbons (CFCs) in the atmosphere start a chain of chemical reactions on aerosol surfaces that destroy ozone molecules in the mid-latitude stratosphere, intensifying observed stratospheric ozone depletion "While we have no observations, the 1963 Agung eruption on the island of Bali probably did not deplete
|