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Space-Based Diagnosis of Surface Ozone Sensitivity to Anthropogenic EmissionsWe present a novel capability in satellite remote sensing with implications for air pollution control strategy. We show that the ratio of formaldehyde columns to tropospheric nitrogen dioxide columns is an indicator of the relative sensitivity of surface ozone to emissions of nitrogen oxides (NO(x) = NO + NO2) and volatile organic compounds (VOCs). The diagnosis from these space-based observations is highly consistent with current understanding of surface ozone chemistry based on in situ observations. The satellite-derived ratios indicate that surface ozone is more sensitive to emissions of NO(x) than of VOCs throughout most continental regions of the Northern Hemisphere during summer. Exceptions include Los Angeles and industrial areas of Germany. A seasonal transition occurs in the fall when surface ozone becomes less sensitive to NOx and more sensitive to VOCs.
Document ID
Document Type
Reprint (Version printed in journal)
External Source(s)
Martin, Randall V. (Dalhousie Univ. Halifax, Nova Scotia, Canada)
Fiore, Arlene M. (Princeton Univ. Princeton, NJ, United States)
VanDonkelaar, Aaron (Dalhousie Univ. Halifax, Nova Scotia, Canada)
Date Acquired
August 24, 2013
Publication Date
March 24, 2004
Publication Information
Publication: Geophysical Research Letters
Volume: 31
Subject Category
Meteorology and Climatology
Funding Number(s)
Distribution Limits