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Validation of 10-year SAO OMI Ozone Profile (PROFOZ) product using ozonesonde observations
- Source :
- Atmospheric Measurement Techniques, Atmospheric Measurement Techniques, European Geosciences Union, 2017, 10 (7), pp.2455-2475. ⟨10.5194/amt-10-2455-2017⟩, EPIC3Atmospheric Measurement Techniques, Copernicus Publications, pp. 2455-2475, ISSN: 1867-1381, Atmospheric Measurement Techniques, 2017, 10 (7), pp.2455-2475. ⟨10.5194/amt-10-2455-2017⟩, Atmospheric Measurement Techniques, Vol 10, Pp 2455-2475 (2017)
- Publication Year :
- 2017
- Publisher :
- HAL CCSD, 2017.
-
Abstract
- We validate the Ozone Monitoring Instrument (OMI) Ozone Profile (PROFOZ) product from October 2004 through December 2014 retrieved by the Smithsonian Astrophysical Observatory (SAO) algorithm against ozonesonde observations. We also evaluate the effects of OMI row anomaly (RA) on the retrieval by dividing the dataset into before and after the occurrence of serious OMI RA, i.e., pre-RA (2004–2008) and post-RA (2009–2014). The retrieval shows good agreement with ozonesondes in the tropics and midlatitudes and for pressure ∼ 50 hPa after applying OMI averaging kernels to ozonesonde data. The MBs of the stratospheric ozone column (SOC, the ozone column from the tropopause pressure to the ozonesonde burst pressure) are within 2 % with SDs of ∼ 50 hPa. The SOC MBs increase up to 3 % with SDs as great as 6 % and the TOC SDs increase up to 30 %. The comparison generally degrades at larger solar zenith angles (SZA) due to weaker signals and additional sources of error, leading to worse performance at high latitudes and during the midlatitude winter. Agreement also degrades with increasing cloudiness for pressure > ∼ 100 hPa and varies with cross-track position, especially with large MBs and SDs at extreme off-nadir positions. In the tropics and midlatitudes, the post-RA comparison is considerably worse with larger SDs reaching 2 % in the stratosphere and 8 % in the troposphere and up to 6 % in TOC. There are systematic differences that vary with latitude compared to the pre-RA comparison. The retrieval comparison demonstrates good long-term stability during the pre-RA period but exhibits a statistically significant trend of 0.14–0.7 % year−1 for pressure
- Subjects :
- Atmospheric Science
010504 meteorology & atmospheric sciences
Cloud cover
0211 other engineering and technologies
02 engineering and technology
01 natural sciences
Latitude
Troposphere
Ozone layer
lcsh:TA170-171
Stratosphere
021101 geological & geomatics engineering
0105 earth and related environmental sciences
validation
Ozone Monitoring Instrument
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere
lcsh:TA715-787
Anomaly (natural sciences)
OMI
lcsh:Earthwork. Foundations
ozone
lcsh:Environmental engineering
Trace gas
13. Climate action
Climatology
Environmental science
Subjects
Details
- Language :
- English
- ISSN :
- 18671381 and 18678548
- Database :
- OpenAIRE
- Journal :
- Atmospheric Measurement Techniques, Atmospheric Measurement Techniques, European Geosciences Union, 2017, 10 (7), pp.2455-2475. ⟨10.5194/amt-10-2455-2017⟩, EPIC3Atmospheric Measurement Techniques, Copernicus Publications, pp. 2455-2475, ISSN: 1867-1381, Atmospheric Measurement Techniques, 2017, 10 (7), pp.2455-2475. ⟨10.5194/amt-10-2455-2017⟩, Atmospheric Measurement Techniques, Vol 10, Pp 2455-2475 (2017)
- Accession number :
- edsair.doi.dedup.....4d7654aaf0bdd35a84359b2d6bdd812e