20 years of ClO measurements in the Antarctic lower stratosphere

Nedoluha, Gerald E.; Connor, Brian J.; Mooney, Thomas; Barrett, James W.; Parrish, Alan; Gomez, R. Michael; Boyd, Ian; Allen, Douglas R.; Kotkamp, Michael; Kremser, Stefanie; Deshler, Terry; Newman, Paul; Santee, Michelle L.

doi:https://doi.org/10.5194/acp-16-10725-2016

Articles | Volume 16, issue 16

https://doi.org/10.5194/acp-16-10725-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Twenty-five years of operations of the Network for the Detection...

https://doi.org/10.5194/acp-16-10725-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 16

Research article

|

30 Aug 2016

Research article |

| 30 Aug 2016

20 years of ClO measurements in the Antarctic lower stratosphere

Gerald E. Nedoluha, Brian J. Connor, Thomas Mooney, James W. Barrett, Alan Parrish, R. Michael Gomez, Ian Boyd, Douglas R. Allen, Michael Kotkamp, Stefanie Kremser, Terry Deshler, Paul Newman, and Michelle L. Santee

Data sets

Ozone Hole Watch NASA http://ozonewatch.gsfc.nasa.gov/

NDACC Data NOAA http://www.ndsc.ncep.noaa.gov/data/

MLS data NASA http://acdisc.gesdisc.eosdis.nasa.gov/data/

Short summary

Chlorine monoxide (ClO) is central to the formation of the springtime Antarctic ozone hole since it is the catalytic agent in the most important ozone-depleting chemical cycle. We present 20 years of measurements of ClO from the Chlorine monOxide Experiment at Scott Base, Antarctica, and 12 years of measurements from the Aura Microwave Limb Sounder to show that the trends in ClO during the ozone hole season are consistent with changes in stratospheric chlorine observed elsewhere.