| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | J8LNKAN8RW/39RS9SS |
| Repository | dpi.inpe.br/plutao/2011/06.11.13.35.48 |
| Last Update | 2011:11.03.19.02.35 (UTC) administrator |
| Metadata Repository | dpi.inpe.br/plutao/2011/06.11.13.35.49 |
| Metadata Last Update | 2021:07.28.23.06.02 (UTC) administrator |
| Secondary Key | INPE--PRE/ |
| DOI | 10.5194/acpd-11-16147-2011 |
| ISSN | 1680-7375 |
| Label | lattes: 9873289111461387 9 MarécalKMCLAADFLRR:2011:ImDeCo |
| Citation Key | MarécalKMCLAADFLRR:2011:ImDeCo |
| Title | Impact of deep convection on the tropical tropopause layer composition in Equatorial Brazil  |
| Year | 2011 |
| Access Date | 2024, May 11 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 6209 KiB |
| 2. Context | |
| Author | 1 Marécal, V. 2 Krysztofiak, G. 3 Mébarki, Y. 4 Catoire, V. 5 Lott, F. 6 Attié, J. -L. 7 Arteta, J. 8 Deeter, M. N. 9 Freitas, Saulo Ribeiro de 10 Longo, K. M. 11 Renard, J. -B. 12 Robert, C. |
| Resume Identifier | 1 2 3 4 5 6 7 8 9 8JMKD3MGP5W/3C9JJ7M |
| Group | 1 2 3 4 5 6 7 8 9 DMD-CPT-INPE-MCT-BR 10 DGE-CEA-INPE-MCT-BR |
| Affiliation | 1 Centre National de Recherche M´ et ´eorologique-Groupe d’ ´etude de l’Atmosph`ere 2 Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, CNRS and Universit ´e of Orl ´eans, UMR 6115, Orl ´eans, France 3 Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, CNRS and Universit ´e of Orl ´eans, UMR 6115, Orl ´eans, France 4 Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, CNRS and Universit ´e of Orl ´eans, UMR 6115, Orl ´eans, France 5 Laboratoire de M´ et ´eorologie Dynamique, Ecole Normale Sup´ erieure and CNRS, UMR 8539, Paris, France 6 4Laboratoire d’A´ erologie, Universit ´e de Toulouse and CNRS, UMR 5560, Toulouse, France 7 Centre National de Recherche M´ et ´eorologique-Groupe d’ ´etude de l’Atmosphere 8 National Center for Atmospheric Research, Atmospheric Chemistry Division, Boulder, USA 9 Instituto Nacional de Pesquisas Espaciais (INPE) 10 Instituto Nacional de Pesquisas Espaciais (INPE) 11 Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, CNRS and Universit ´e of Orl ´eans, UMR 6115, Orl ´eans, France 12 Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, CNRS and Universit ´e of Orl ´eans, UMR 6115, Orl ´eans, France |
| Author e-Mail Address | 1 2 3 4 5 6 7 8 9 saulo.freitas@cptec.inpe.br |
| e-Mail Address | saulo.freitas@cptec.inpe.br |
| Journal | Atmospheric Chemistry and Physics Discussion |
| Volume | 11 |
| Pages | 16147-16183 |
| Secondary Mark | B4_ENGENHARIAS_II B3_GEOCIÊNCIAS B2_INTERDISCIPLINAR |
| History (UTC) | 2011-06-11 17:43:47 :: lattes -> marciana :: 2011 2011-06-20 18:19:40 :: marciana -> administrator :: 2011 2011-07-18 13:22:28 :: administrator -> valdirene :: 2011 2011-11-03 19:02:35 :: valdirene -> administrator :: 2011 2012-07-25 15:51:13 :: administrator -> banon :: 2011 2012-09-21 14:41:38 :: banon -> administrator :: 2011 2012-10-19 20:25:41 :: administrator -> valdirene :: 2011 2013-01-17 12:12:23 :: valdirene -> administrator :: 2011 2021-07-28 23:06:02 :: administrator -> valdirene :: 2011 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Abstract | This paper documents measurements of carbon monoxide (CO), ozone (O3) and temperature in the tropical tropopause layer over Equatorial Brazil for the first time. These measurements were sampled by the balloon-borne instrument SPIRALE (Spectro- 5 scopie Infa-Rouge par Absorption de Lasers Embarque´s) in June 2005 and in June 2008, both at the transition period from wet to dry season. The height of the Tropical Tropopause Layer (TTL) top and bottom determined from the chemical species profiles are similar for the two flights. Nevertheless the measured profiles of ozone and CO are different in their volume mixing ratio and shape. The larger CO values measured 10 in the TTL in 2005 can be linked to a more intense biomass burning activity in 2005 than in 2008. We also show that both measured profiles are influenced by convection but in different ways leading to different shapes. The CO profile in 2005 is characterised by a generally smooth decrease in the TTL from tropospheric to stratospheric conditions, except for two layers of enhanced CO around 14.2 (>100 parts per billion 15 by volume=ppbv) and 16.3 km altitude (>85 ppbv). Backward trajectories indicate that these layers come from the vertical transport by remote deep convection occurring 2 and 3 days prior to the flight, respectively. This shows that the transition period from wet to dry season is favourable for the transport of significant amounts of CO in the TTL, sometimes above the level of zero radiative heating, because of increasing biomass 20 burning together with decaying but still important convective activity. In 2008 we focus our analysis on a 1 km deep layer, between 17 and 18 km, where both the temperature and the ozone profiles are uniform in the vertical, corresponding to a layer of well-mixed air. We show that this unusual behaviour is indirectly related to the interaction between convection and the Quasi-Biennial Oscillation (QBO), through vertically propagating 25 gravity waves. Quasi-stationary gravity waves are likely to be produced by convective systems and certainly break in the intense wind shear that imposes the QBO at these altitudes. This conclusion is supported by the fact that the 1618km layer is devoid of ice particles (hence the mixing is not convective) and from backward trajectories that point towards a convective region as the origin of the air masses in this layer. |
| Area | MET |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Impact of deep... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMD > Impact of deep... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/J8LNKAN8RW/39RS9SS |
| zipped data URL | http://urlib.net/zip/J8LNKAN8RW/39RS9SS |
| Language | en |
| Target File | Marecal_Impact of deep.pdf |
| User Group | administrator banon lattes valdirene |
| Visibility | shown |
| Archiving Policy | allowpublisher allowfinaldraft |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3EU29DP 8JMKD3MGPCW/43SKC35 |
| Dissemination | WEBSCI; PORTALCAPES. |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn keywords lineage mark mirrorrepository month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission rightsholder schedulinginformation secondarydate session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | valdirene |
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