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Band residual difference algorithm for retrieval of SO/sub 2/ from the aura ozone monitoring instrument (OMI)
Abstract
The Ozone Monitoring Instrument (OMI) on EOS/Aura offers unprecedented spatial and spectral resolution, coupled with global coverage, for space-based UV measurements of sulfur dioxide (SO/sub 2/). This paper describes an OMI SO/sub 2/ algorithm (the band residual difference) that uses calibrated residuals at SO/sub 2/ absorption band centers produced by the NASA operational ozone algorithm (OMTO3). By using optimum wavelengths for retrieval of SO/sub 2/, the retrieval sensitivity is improved over NASA predecessor Total Ozone Mapping Spectrometer (TOMS) by factors of 10 to 20, depending on location. The ground footprint of OMI is eight times smaller than TOMS. These factors produce two orders of magnitude improvement in the minimum detectable mass of SO/sub 2/. Thus, the diffuse boundaries of volcanic clouds can be imaged better and the clouds can be tracked longer. More significantly, the improved sensitivity now permits daily global measurement of passive volcanic degassing of SO/sub 2/ and of heavy anthropogenic SO/sub 2/ pollution to provide new information on the relative importance of these sources for climate studies.
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Cited by
Near-real time retrieval of tropospheric NO 2 from OMI
Boersma, K. F., Eskes, H. J., Veefkind, J. P., Brinksma, E. J., van der A, R. J., Sneep, M., van den Oord, G. H. J., Levelt, P. F., Stammes, P., Gleason, J. F., et al. (2007) · Atmospheric Chemistry and Physics · doi:10.5194/acp-7-2103-2007 · Cited by 357
Excess degassing from volcanoes and its role on eruptive and intrusive activity
Shinohara, H. (2008) · Reviews of Geophysics · doi:10.1029/2007rg000244 · Cited by 323
Becerra-Rondón, A., Ducati, J., & Haag, R. (2022) · Atmósfera · doi:10.20937/atm.53027 · Cited by 3
Metadata
- Authors
- Krotkov, N. A., Carn, S. A., Krueger, A. J., Bhartia, P. K., & Yang, K.
- Venue
- IEEE Transactions on Geoscience and Remote Sensing
- Published
- 2006-05
- Volume
- 44
- Issue
- 5
- Pages
- 1259-1266
- ISSN
- 0196-2892 (ISSN-L)
- OpenAlex
- W2141566411
- Cited by
- 279
- References
- 0
- FWCI
- 10.90
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Band residual difference algorithm for retrieval of SO/sub 2/ from the aura ozone monitoring instrument (OMI). https://app.cochat.ai/papers/10.1109/tgrs.2005.861932
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- Krotkov, N. A., Carn, S. A., Krueger, A. J., Bhartia, P. K., & Yang, K. (2006). Band residual difference algorithm for retrieval of SO/sub 2/ from the aura ozone monitoring instrument (OMI). IEEE Transactions on Geoscience and Remote Sensing. https://doi.org/10.1109/tgrs.2005.861932
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