Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-6939-2018 |
Multi-year assimilation of IASI and MLS ozone retrievals: variability of tropospheric ozone over the tropics in response to ENSO | |
Peiro, Helene1; Emili, Emanuele1; Cariolle, Daniel1,2; Barret, Brice3; Le Flochmoen, Eric3 | |
2018-05-17 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:9页码:6939-6958 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | The Infrared Atmospheric Sounder Instrument (IASI) allows global coverage with very high spatial resolution and its measurements are promising for long-term ozone monitoring. In this study, Microwave Limb Sounder (MLS) O-3 profiles and IASI O-3 partial columns (1013.25-345 hPa) are assimilated in a chemistry transport model to produce 6-hourly analyses of tropospheric ozone for 6 years (2008-2013). We have compared and evaluated the IASI-MLS analysis and the MLS analysis to assess the added value of IASI measurements. The global chemical transport model MOCAGE (MOdele de Chimie Atmospherique a Grande Echelle) has been used with a linear ozone chemistry scheme and meteorological forcing fields from ERA-Interim (ECMWF global reanalysis) with a horizontal resolution of 2 degrees x 2 degrees and 60 vertical levels. The MLS and IASI O3 retrievals have been assimilated with a 4-D variational algorithm to constrain stratospheric and tropospheric ozone respectively. The ozone analyses are validated against ozone soundings and tropospheric column ozone (TCO) from the OMI-MLS residual method. In addition, an Ozone ENSO Index (OEI) is computed from the analysis to validate the TCO variability during the ENSO events. We show that the assimilation of IASI reproduces the variability of tropospheric ozone well during the period under study. The variability deduced from the IASI-MLS analysis and the OMI-MLS measurements are similar for the period of study. The IASI-MLS analysis can reproduce the extreme oscillation of tropospheric ozone caused by ENSO events over the tropical Pacific Ocean, although a correction is re-quired to reduce a constant bias present in the IASI-MLS analysis. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000432405100002 |
WOS关键词 | TRANSPORT MODEL MOCAGE ; 1997-1998 EL-NINO ; COLUMN OZONE ; SATELLITE-OBSERVATIONS ; STRATOSPHERIC OZONE ; NITRIC-ACID ; CHEMISTRY ; CLIMATE ; IASI/METOP ; O-3 |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19514 |
专题 | 地球科学 |
作者单位 | 1.Univ Toulouse, CNRS, CERFACS, CECI, Toulouse, France; 2.Meteo France, Toulouse, France; 3.Univ Toulouse, CNRS, UPS, Lab Aerol, Toulouse, France |
推荐引用方式 GB/T 7714 | Peiro, Helene,Emili, Emanuele,Cariolle, Daniel,et al. Multi-year assimilation of IASI and MLS ozone retrievals: variability of tropospheric ozone over the tropics in response to ENSO[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(9):6939-6958. |
APA | Peiro, Helene,Emili, Emanuele,Cariolle, Daniel,Barret, Brice,&Le Flochmoen, Eric.(2018).Multi-year assimilation of IASI and MLS ozone retrievals: variability of tropospheric ozone over the tropics in response to ENSO.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(9),6939-6958. |
MLA | Peiro, Helene,et al."Multi-year assimilation of IASI and MLS ozone retrievals: variability of tropospheric ozone over the tropics in response to ENSO".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.9(2018):6939-6958. |
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