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Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores

Publication ,  Journal Article
Lamarque, JF; McConnell, JR; Shindell, DT; Orlando, JJ; Tyndall, GS
Published in: Geophysical Research Letters
February 1, 2011

Observations and model simulations of an Antarctic ice-core record of hydrogen peroxide during the last ∼150 years are analyzed. The observations indicate a relative increase in hydrogen peroxide by approximately 50% since 1900, with most of the change since the early 1970s. Using two model simulations spanning 1850 to present, we show that the modeled relative change in annual-mean surface hydrogen peroxide parallels the equivalent signal from the ice core record. In addition, we show that this relative change can be explained by the relative changes in tropospheric ozone concentration and mostly in ozone photolysis rates (J(O1D)). The simulated signal is therefore intimately related to the changes in stratospheric ozone associated with increases in chlorofluorocarbons; this is further demonstrated using total ozone column observations and the associated observed change in ice-core hydrogen peroxide. Copyright © 2011 by the American Geophysical Union.

Duke Scholars

Published In

Geophysical Research Letters

DOI

ISSN

0094-8276

Publication Date

February 1, 2011

Volume

38

Issue

4

Related Subject Headings

  • Meteorology & Atmospheric Sciences
 

Citation

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Lamarque, J. F., McConnell, J. R., Shindell, D. T., Orlando, J. J., & Tyndall, G. S. (2011). Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores. Geophysical Research Letters, 38(4). https://doi.org/10.1029/2010GL045992
Lamarque, J. F., J. R. McConnell, D. T. Shindell, J. J. Orlando, and G. S. Tyndall. “Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores.” Geophysical Research Letters 38, no. 4 (February 1, 2011). https://doi.org/10.1029/2010GL045992.
Lamarque JF, McConnell JR, Shindell DT, Orlando JJ, Tyndall GS. Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores. Geophysical Research Letters. 2011 Feb 1;38(4).
Lamarque, J. F., et al. “Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores.” Geophysical Research Letters, vol. 38, no. 4, Feb. 2011. Scopus, doi:10.1029/2010GL045992.
Lamarque JF, McConnell JR, Shindell DT, Orlando JJ, Tyndall GS. Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores. Geophysical Research Letters. 2011 Feb 1;38(4).
Journal cover image

Published In

Geophysical Research Letters

DOI

ISSN

0094-8276

Publication Date

February 1, 2011

Volume

38

Issue

4

Related Subject Headings

  • Meteorology & Atmospheric Sciences