| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34T/44TD99L | |||
| Repository | sid.inpe.br/mtc-m21d/2021/06.21.13.24 (restricted access) | |||
| Last Update | 2021:06.21.13.24.06 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2021/06.21.13.24.06 | |||
| Metadata Last Update | 2022:04.03.22.27.23 (UTC) administrator | |||
| DOI | 10.1016/j.epsl.2021.117030 | |||
| ISSN | 0012-821X | |||
| Citation Key | NascimentoVCBKJSPGCMA:2021:TrAtSt | |||
| Title | Tropical Atlantic stratification response to late Quaternary precessional forcing  | |||
| Year | 2021 | |||
| Month | Aug. | |||
| Access Date | 2024, May 09 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 3163 KiB | |||
| 2. Context | ||||
| Author | 1 Nascimento, Rodrigo A. 2 Venâncio, Igor Martins 3 Chiessi, C. M. 4 Ballalai, J. M. 5 Kuhnert, H. 6 Johnstone, H. 7 Santos, T. P. 8 Prange, M. 9 Govin, A. 10 Crivellari, S. 11 Mulitza, S. 12 Albuquerque, A. L. S. | |||
| Group | 1 2 MET-MET-DIPGR-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Universidade Federal Fluminense (UFF) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Universidade de São Paulo (USP) 4 Universidade Federal Fluminense (UFF) 5 University of Bremen 6 University of Bremen 7 Universidade Federal Fluminense (UFF) 8 University of Bremen 9 Université Paris Saclay 10 Universidade de São Paulo (USP) 11 University of Bremen 12 Universidade Federal Fluminense (UFF) | |||
| Author e-Mail Address | 1 rodrigoan@id.uff.br | |||
| Journal | Earth and Planetary Science Letters | |||
| Volume | 568 | |||
| Pages | e117030 | |||
| Secondary Mark | A1_QUÍMICA A1_INTERDISCIPLINAR A1_GEOGRAFIA A1_GEOCIÊNCIAS A1_ANTROPOLOGIA_/_ARQUEOLOGIA A2_ENGENHARIAS_II A2_CIÊNCIAS_BIOLÓGICAS_III A2_BIOTECNOLOGIA B2_SOCIOLOGIA | |||
| History (UTC) | 2021-06-21 13:24:06 :: simone -> administrator :: 2021-06-21 13:24:07 :: administrator -> simone :: 2021 2021-06-21 13:25:46 :: simone -> administrator :: 2021 2021-06-23 13:36:09 :: administrator -> simone :: 2021 2021-06-23 13:36:24 :: simone -> administrator :: 2021 2022-04-03 22:27:23 :: administrator -> simone :: 2021 | |||
| 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 | |||
| Keywords | ITCZ precession South Atlantic Subtropical Gyre western tropical Atlantic stratification | |||
| Abstract | The upper ocean circulation in the western tropical Atlantic (WTA) is responsible for the northward cross-equatorial heat transport as part of the Atlantic Meridional Overturning Circulation (AMOC). This cross-equatorial transport is influenced by the thermocline circulation and stratification. Although seasonal thermocline stratification in the WTA is precession-driven, the existence of an orbital pacemaker of changes in the entire WTA upper ocean stratification, which comprises the main thermocline, remains elusive. Here, we present a 300 ka-long record of the WTA upper ocean stratification and main thermocline temperature based on oxygen isotopes (δ18O) and Mg/Ca of planktonic foraminifera. Our Δδ18O record between Globigerinoides ruber and Globorotalia truncatulinoides, representing upper ocean stratification, shows a robust precession pacing, where strong stratification was linked to high summer insolation in the Northern Hemisphere (precession minima). Mg/Ca-based temperatures support that stratification is dominated by changes in thermocline temperature. We present a new mechanism to explain changes in WTA stratification, where during the Northern Hemisphere summer insolation maxima, the Intertropical Convergence Zone shifts northward, developing a negative wind stress curl anomaly in the tropical Atlantic. This, in turn, pulls the main thermocline up and pushes the South Atlantic Subtropical Gyre southwards, increasing the stratification to the north of the gyre. This mechanism is supported by experiments performed with the Community Earth System Model (CESM1.2). Finally, we hypothesize that the precession-driven WTA stratification may affect the cross-equatorial flow into the North Atlantic. | |||
| Area | MET | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > MET > Tropical Atlantic stratification... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCT > Tropical Atlantic stratification... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| Target File | nascimento_tropical.pdf | |||
| User Group | simone | |||
| Visibility | shown | |||
| Archiving Policy | denypublisher denyfinaldraft24 | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3F35TRS 8JMKD3MGPCW/46KUATE | |||
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Host Collection | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||