| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZsFDuKxG/CUBi6 |
| Repository | sid.inpe.br/marciana/2004/07.29.08.52 (restricted access) |
| Last Update | 2004:07.29.03.00.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/marciana/2004/07.29.08.53 |
| Metadata Last Update | 2018:06.05.01.21.01 (UTC) administrator |
| Secondary Key | INPE-11021-PRE/6477 |
| ISSN | 1352-2310 |
| Citation Key | AlvalaBoiaKirc:2004:MeCHCO |
| Title | Measurements of CH4 and CO duringship cruises in the South Atlantic  |
| Year | 2004 |
| Month | Sept. |
| Access Date | 2024, Apr. 27 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 285 KiB |
| 2. Context | |
| Author | 1 Alvala, Plinio Carlos 2 Boian, Claudia 3 Kirchhoff, Volker Walter Johann Heinrich |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JJ4C 2 3 8JMKD3MGP5W/3C9JJBM |
| Group | 1 DGE-INPE-MCT-BR |
| Journal | Atmospheric Environment |
| Volume | 38 |
| Number | 27 |
| Pages | 4583-4588 |
| History (UTC) | 2005-03-17 18:06:14 :: marciana -> administrator :: 2018-06-05 01:21:01 :: administrator -> marciana :: 2004 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | methane carbon monoxide latitudinal variation marine boundary layer |
| Abstract | Shipboard air grab samplings were made in November 2000, and in March 2001, to study the distribution of the atmospheric CH4 and CO in the South Atlantic region. The observations were performed in two campaigns during the cruise between Rio de Janeiro (22 540S, 43 100W) and the Brazilian Comandante Ferraz Antarctic Station (62 050S, 58 240W), and the cruise back to Rio de Janeiro. The samplingwas performed usingtwo canisters .lled in a sequential way for each samplingday. Most of the average mixing ratios of CH4 for November 2000 were slightly lower than the expected values for this region, with an average of 1707.378.4 ppbv, without a clear latitudinal tendency. The mixingratios for CO presented averages very near to the expected values for that region, with an average of 52.776.5 ppbv, showinga latitudinal variation as observed by other studies. For March 2001, the CH4 average mixing ratios showed a somewhat lower latitudinal spread than that observed in November 2000, with two samplingpoints showing lower mixingratios in comparison with the other. However, the average of 1688.877.3 ppbv is very near that observed at the same latitude by other studies. The CO average mixing ratios presented a very low dispersion, with an average of 41.177.6 ppbv, with a very clear latitudinal variation. Both trace gases showed a seasonal difference between the two periods, which was very clear in the ratio CH4/CO. To determine the origin of sampled air masses, back trajectories for 48 h were calculated for isentropic surfaces of 1.5km altitude or lower. With the exception of some trajectories between the latitudes of 30 S and 34 S, which were originated in the continent, most of them had origin from west direction, beginning in the Paci.c Ocean. |
| Area | CEA |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Measurements of CH4... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | alvala.pdf |
| User Group | administrator marciana |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft24 |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3EU29DP |
| Dissemination | WEBSCI; PORTALCAPES. |
| Host Collection | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notes | |
| Empty Fields | affiliation alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
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