Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-3573-2017 |
HEPPA-II model-measurement intercomparison project: EPP indirect effects during the dynamically perturbed NH winter 2008-2009 | |
Funke, Bernd1; Ball, William2; Bender, Stefan4; Gardini, Angela1; Harvey, V. Lynn5; Lambert, Alyn6; Lopez-Puertas, Manuel1; Marsh, Daniel R.7; Meraner, Katharina8; Nieder, Holger4; Paivarinta, Sanna-Mari9; Perot, Kristell10; Randall, Cora E.5; Reddmann, Thomas4; Rozanov, Eugene2,11; Schmidt, Hauke8; Seppala, Annika3; Sinnhuber, Miriam4; Sukhodolov, Timofei2; Stiller, Gabriele P.4; Tsvetkova, Natalia D.12; Verronen, Pekka T.3; Versick, Stefan4,14; von Clarmann, Thomas4; Walker, Kaley A.13; Yushkov, Vladimir12 | |
2017-03-14 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; Switzerland; Finland; Germany; USA; Sweden; Russia; Canada |
英文摘要 | We compare simulations from three high-top (with upper lid above 120 km) and five medium-top (with upper lid around 80 km) atmospheric models with observations of odd nitrogen (NOx D NO+NO2), temperature, and carbon monoxide from seven satellite instruments (ACE-FTS on SciSat, GOMOS, MIPAS, and SCIAMACHY on Envisat, MLS on Aura, SABER on TIMED, and SMR on Odin) during the Northern Hemisphere (NH) polar winter 2008/2009. The models included in the comparison are the 3-D chemistry transport model 3dCTM, the ECHAM5/MESSy Atmospheric Chemistry (EMAC) model, FinROSE, the Hamburg Model of the Neutral and Ionized Atmosphere (HAMMO-NIA), the Karlsruhe Simulation Model of the Middle Atmosphere (KASIMA), the modelling tools for SOlar Climate Ozone Links studies (SOCOL and CAO-SOCOL), and the Whole Atmosphere Community Climate Model (WACCM4). The comparison focuses on the energetic particle precipitation (EPP) indirect effect, that is, the polar winter descent of NOx largely produced by EPP in the mesosphere and lower thermosphere. A particular emphasis is given to the impact of the sudden stratospheric warming (SSW) in January 2009 and the subsequent elevated stratopause (ES) event associated with enhanced descent of mesospheric air. The chemistry climate model simulations have been nudged toward reanalysis data in the troposphere and stratosphere while being unconstrained above. An odd nitrogen upper boundary condition obtained from MIPAS observations has further been applied to medium-top models. Most models provide a good representation of the mesospheric tracer descent in general, and the EPP indirect effect in particular, during the unperturbed (pre-SSW) period of the NH winter 2008/2009. The observed NOx descent into the lower mesosphere and stratosphere is generally reproduced within 20 %. Larger discrepancies of a few model simulations could be traced back either to the impact of the models' gravity wave drag scheme on the polar wintertime meridional circulation or to a combination of prescribed NOx mixing ratio at the uppermost model layer and low vertical resolution. In March-April, after the ES event, however, modelled mesospheric and stratospheric NOx distributions deviate significantly from the observations. The too-fast and early downward propagation of the NO x tongue, encountered in most simulations, coincides with a temperature high bias in the lower mesosphere (0.2-0.05 hPa), likely caused by an overestimation of descent velocities. In contrast, upper-mesospheric temperatures (at 0.05-0.001 hPa) are generally underestimated by the high-top models after the onset of the ES event, being indicative for too-slow descent and hence too-low NOx fluxes. As a consequence, the magnitude of the simulated NOx tongue is generally underestimated by these models. Descending NOx amounts simulated with mediumtop models are on average closer to the observations but show a large spread of up to several hundred percent. This is primarily attributed to the different vertical model domains in which the NOx upper boundary condition is applied. In general, the intercomparison demonstrates the ability of state-of- the-art atmospheric models to reproduce the EPP indirect effect in dynamically and geomagnetically quiescent NH winter conditions. The encountered differences between observed and simulated NOx, CO, and temperature distributions during the perturbed phase of the 2009 NH winter, however, emphasize the need for model improvements in the dynamical representation of elevated stratopause events in order to allow for a better description of the EPP indirect effect under these particular conditions. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000397827900005 |
WOS关键词 | ENERGETIC PARTICLE-PRECIPITATION ; CHEMISTRY-CLIMATE MODEL ; SOLAR PROTON EVENTS ; MICROWAVE LIMB SOUNDER ; OCTOBER-NOVEMBER 2003 ; WAVE INDUCED DRAG ; LOWER THERMOSPHERE ; MIDDLE ATMOSPHERE ; NITRIC-OXIDE ; ACE-FTS |
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/27289 |
专题 | 地球科学 |
作者单位 | 1.Inst Astrofis Andalucia, CSIC, Apdo 3004, Granada 18008, Spain; 2.World Radiat Ctr, Physikalisch Meteorolog Observatorium, Davos, Switzerland; 3.Finnish Meteorol Inst, Earth Observat Unit, Helsinki, Finland; 4.Karlsruhe Inst Technol, Inst Meteorol & Climate Res IMK ASF, PoB 3640, D-76021 Karlsruhe, Germany; 5.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO USA; 6.CALTECH, Jet Prop Lab, Pasadena, CA USA; 7.Natl Ctr Atmospher Res, Boulder, CO 80307 USA; 8.Max Planck Inst Meteorol, Hamburg, Germany; 9.Univ Helsinki, Dept Phys, Helsinki, Finland; 10.Chalmers Univ Technol, Gothenburg, Sweden; 11.ETH, Inst Atmospher & Climate Sci, Zurich, Switzerland; 12.Cent Aerol Observ, Moscow, Russia; 13.Univ Toronto, Dept Phys, Toronto, ON, Canada; 14.Karlsruhe Inst Technol, SCC, Karlsruhe, Germany |
推荐引用方式 GB/T 7714 | Funke, Bernd,Ball, William,Bender, Stefan,et al. HEPPA-II model-measurement intercomparison project: EPP indirect effects during the dynamically perturbed NH winter 2008-2009[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(5). |
APA | Funke, Bernd.,Ball, William.,Bender, Stefan.,Gardini, Angela.,Harvey, V. Lynn.,...&Yushkov, Vladimir.(2017).HEPPA-II model-measurement intercomparison project: EPP indirect effects during the dynamically perturbed NH winter 2008-2009.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(5). |
MLA | Funke, Bernd,et al."HEPPA-II model-measurement intercomparison project: EPP indirect effects during the dynamically perturbed NH winter 2008-2009".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.5(2017). |
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