2008
DOI: 10.1029/2007jd008818
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Validation of SO2 retrievals from the Ozone Monitoring Instrument over NE China

Abstract: [1] The Dutch-Finnish Ozone Monitoring Instrument (OMI) launched on the NASA Aura satellite in July 2004 offers unprecedented spatial resolution, coupled with contiguous daily global coverage, for space-based UV measurements of sulfur dioxide (SO 2 ). We present a first validation of the OMI SO 2 data with in situ aircraft measurements in NE China in April 2005. The study demonstrates that OMI can distinguish between background SO 2 conditions and heavy pollution on a daily basis. The noise (expressed as the s… Show more

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Cited by 160 publications
(192 citation statements)
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“…It is derived by assuming cloud-and aerosol-free conditions, solar zenith angle (SZA) of 30°, surface albedo of 0.05, surface pressure of 1013.25 hPa, summer mid-latitude ozone profile of 325 DU, and SO 2 mostly distributed in the PBL, centered at ∼900 hPa. The noise is ∼1.5 DU for the instantaneous field of view PBL SO 2 data, but can be greatly reduced through averaging over time and space [Krotkov et al, 2008]. Error may also arise due to the constant AMF employed in the operational product.…”
Section: Methodsmentioning
confidence: 99%
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“…It is derived by assuming cloud-and aerosol-free conditions, solar zenith angle (SZA) of 30°, surface albedo of 0.05, surface pressure of 1013.25 hPa, summer mid-latitude ozone profile of 325 DU, and SO 2 mostly distributed in the PBL, centered at ∼900 hPa. The noise is ∼1.5 DU for the instantaneous field of view PBL SO 2 data, but can be greatly reduced through averaging over time and space [Krotkov et al, 2008]. Error may also arise due to the constant AMF employed in the operational product.…”
Section: Methodsmentioning
confidence: 99%
“…The AMF is a function of SO 2 vertical distribution, satellite viewing geometry, total column ozone, aerosols, and clouds [Krotkov et al, 2008]. A constant AMF of 0.36 is used in the current operational PBL SO 2 product.…”
Section: Methodsmentioning
confidence: 99%
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“…5.1). Equally important are also limb-DOAS or in situ instruments to provide information on the vertical distribution of SO 2 which is crucial for satellite validation (e.g., Krotkov et al, 2008).…”
Section: Aircraft and Mobile Measurementsmentioning
confidence: 99%