TY - JOUR
T1 - Revising the Ozone Depletion Potentials Metric for Short-Lived Chemicals Such as CF3I and CH3I
AU - Zhang, Jun
AU - Wuebbles, Donald J.
AU - Kinnison, Douglas E.
AU - Saiz-Lopez, Alfonso
N1 - Funding Information:
We acknowledge high-performance computing support provided by NCAR's Computational and Information Systems Laboratory, sponsored by the National Science Foundation. This study has received some support from the European Research Council Executive Agency under the European Union's Horizon 2020 Research and Innovation program (Project “ERC-2016-COG 726349 CLIMAHAL”). The atmospheric modeling data sets used in the development of the tables and figures from this study are available to the community through the Illinois Data Bank (IDB), a public access repository at the University of Illinois at Urbana-Champaign (UIUC). The website for our data set at llinois Data Bank is this (https://databank.illinois.edu/datasets/IDB-5952573).
Funding Information:
We acknowledge high‐performance computing support provided by NCAR's Computational and Information Systems Laboratory, sponsored by the National Science Foundation. This study has received some support from the European Research Council Executive Agency under the European Union's Horizon 2020 Research and Innovation program (Project “ERC‐2016‐COG 726349 CLIMAHAL”). The atmospheric modeling data sets used in the development of the tables and figures from this study are available to the community through the Illinois Data Bank (IDB), a public access repository at the University of Illinois at Urbana‐Champaign (UIUC). The website for our data set at llinois Data Bank is this ( https://databank.illinois.edu/datasets/IDB‐5952573 ).
Publisher Copyright:
©2020. American Geophysical Union. All Rights Reserved.
PY - 2020/5/16
Y1 - 2020/5/16
N2 - Ozone depletion potentials (ODPs) are an important metric in national and international policy for evaluating the relative importance of different gases to affecting stratospheric ozone. In evaluating the ODPs of iodotrifluoromethane (CF3I) and methyl iodide (CH3I) using the recently updated understanding of atmospheric iodine chemistry, only minor ozone loss would be expected to occur in the stratosphere from the very short-lived (~6 days) CF3I, with slightly larger destruction of stratospheric ozone from CH3I (~12 days). In addition, most of the ozone destruction would likely occur in the lower troposphere over continental surfaces, reducing anthropogenic ozone pollution. The traditional ODP concept uses total column ozone change, but this is not an accurate representation of potential future use of very short-lived substances (VSLSs) on the abundance of stratospheric ozone. A new metric, Stratospheric ODP (or SODP), is defined that only accounts for stratospheric ozone loss, providing a useful additional tool for policy considerations of VSLSs on stratospheric ozone.
AB - Ozone depletion potentials (ODPs) are an important metric in national and international policy for evaluating the relative importance of different gases to affecting stratospheric ozone. In evaluating the ODPs of iodotrifluoromethane (CF3I) and methyl iodide (CH3I) using the recently updated understanding of atmospheric iodine chemistry, only minor ozone loss would be expected to occur in the stratosphere from the very short-lived (~6 days) CF3I, with slightly larger destruction of stratospheric ozone from CH3I (~12 days). In addition, most of the ozone destruction would likely occur in the lower troposphere over continental surfaces, reducing anthropogenic ozone pollution. The traditional ODP concept uses total column ozone change, but this is not an accurate representation of potential future use of very short-lived substances (VSLSs) on the abundance of stratospheric ozone. A new metric, Stratospheric ODP (or SODP), is defined that only accounts for stratospheric ozone loss, providing a useful additional tool for policy considerations of VSLSs on stratospheric ozone.
KW - ozone depletion potential
KW - ozone pollution
KW - short-lived chemicals
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U2 - 10.1029/2020JD032414
DO - 10.1029/2020JD032414
M3 - Article
AN - SCOPUS:85084458388
SN - 2169-897X
VL - 125
JO - Journal of Geophysical Research: Atmospheres
JF - Journal of Geophysical Research: Atmospheres
IS - 9
M1 - e2020JD032414
ER -