DOI: 10.1016/j.atmosenv.2017.08.036
Scopus记录号: 2-s2.0-85027865695
论文题名: Global budget of tropospheric ozone: Evaluating recent model advances with satellite (OMI), aircraft (IAGOS), and ozonesonde observations
作者: Hu L ; , Jacob D ; J ; , Liu X ; , Zhang Y ; , Zhang L ; , Kim P ; S ; , Sulprizio M ; P ; , Yantosca R ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 167 起始页码: 323
结束页码: 334
语种: 英语
英文关键词: Aircraft
; Budget
; Chemical transport model
; Ozonesonde
; Satellite
; Tropospheric ozone
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The global budget of tropospheric ozone is governed by a complicated ensemble of coupled chemical and dynamical processes. Simulation of tropospheric ozone has been a major focus of the GEOS-Chem chemical transport model (CTM) over the past 20 years, and many developments over the years have affected the model representation of the ozone budget. Here we conduct a comprehensive evaluation of the standard version of GEOS-Chem (v10-01) with ozone observations from ozonesondes, the OMI satellite instrument, and MOZAIC-IAGOS commercial aircraft for 2012–2013. Global validation of the OMI 700-400 hPa data with ozonesondes shows that OMI maintained persistent high quality and no significant drift over the 2006–2013 period. GEOS-Chem shows no significant seasonal or latitudinal bias relative to OMI and strong correlations in all seasons on the 2° × 2.5° horizontal scale (r = 0.88–0.95), improving on previous model versions. The most pronounced model bias revealed by ozonesondes and MOZAIC-IAGOS is at high northern latitudes in winter-spring where the model is 10–20 ppbv too low. This appears to be due to insufficient stratosphere-troposphere exchange (STE). Model updates to lightning NOx, Asian anthropogenic emissions, bromine chemistry, isoprene chemistry, and meteorological fields over the past decade have overall led to gradual increase in the simulated global tropospheric ozone burden and more active ozone production and loss. From simulations with different versions of GEOS meteorological fields we find that tropospheric ozone in GEOS-Chem v10-01 has a global production rate of 4960–5530 Tg a−1, lifetime of 20.9–24.2 days, burden of 345–357 Tg, and STE of 325–492 Tg a−1. Change in the intensity of tropical deep convection between these different meteorological fields is a major factor driving differences in the ozone budget. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82193
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States; Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, United States; Department of Earth and Planetary Science, Harvard University, Cambridge, MA, United States; Atomic and Molecular Physics Division, Harvard Smithsonian Center for Astrophysics, Cambridge, MA, United States; Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China; Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, NJ, United States
Recommended Citation:
Hu L,, Jacob D,J,et al. Global budget of tropospheric ozone: Evaluating recent model advances with satellite (OMI), aircraft (IAGOS), and ozonesonde observations[J]. Atmospheric Environment,2017-01-01,167