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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34R/3SRBQ72
Repositorysid.inpe.br/mtc-m21c/2019/03.01.13.12   (restricted access)
Last Update2019:03.01.13.12.54 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m21c/2019/03.01.13.12.54
Metadata Last Update2020:01.06.11.42.11 (UTC) administrator
DOI10.1016/j.jglr.2018.11.001
ISSN0380-1330
Citation KeyAugusto-SilvaMacRudCorMel:2019:StMiLa
TitleStratification and mixing in large floodplain lakes along the lower Amazon River
Year2019
MonthFeb.
Access Date2024, Mar. 28
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size5820 KiB
2. Context
Author1 Augusto-Silva, Pétala Bianchi
2 MacIntyre, Sally
3 Rudorff, Conrado de Moraes
4 Cortés, Alicia
5 Melack, John Michael
Group1 SER-SRE-SESPG-INPE-MCTIC-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Marine Science Institute, University of California
3 Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN)
4 Marine Science Institute, University of California
5 Marine Science Institute, University of California
Author e-Mail Address1 petalaugusto@gmail.com
JournalJournal of Great Lakes Research
Volume45
Number1
Pages61-72
History (UTC)2019-03-01 13:13:58 :: simone -> administrator :: 2019
2020-01-06 11:42:11 :: administrator -> simone :: 2019
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsTropical shallow floodplain lakes
Mixing
Convective cooling
Wind
Advection
AbstractLarge, shallow lakes are common in the extensive floodplains throughout the tropics. To determine controls on their mixing dynamics, we instrumented 5 stations in two shallow, connected tropical lakes on the lower Amazon floodplain with meteorological and temperature sensors. A tight relation between changes in thermal structure and LMO/h (the ratio of the Monin-Obukhov length scale to the depth of the actively mixing layer) indicates the sensitivity of thermal structure to wind speed relative to heating and cooling. Four regimes led to variations in mixing: (i) high solar radiation with light winds in the mid-morning to early afternoon resulted in shallow stratification, 0 < LMO/h < 1; (ii) afternoons with higher winds caused the diurnal thermocline to downwell and heat to mix to deeper layers, LMO/h > 1; (iii) by late afternoon, buoyancy flux became negative and LMO/h < −1 and with u∗W and w∗ both >0.06 m s−1, mixing from wind and cooling co-occurred; and (iv) convection dominated mixing on nights with light winds, −1 < LMO/h < 0. Pattern (ii) occurred mid-day if winds were higher. When winds were intermittent and regime (i) predominated mid-day, changes in heat content were primarily determined by one dimensional processes of heating and cooling. When easterly winds were sustained and regime (ii) occurred mid-day, heat was transported west in the day, and colder water upwelled to the west or was advected to the west and north at night. Subtle differences in wind speed determined the extent to which advection moderated the thermal structure.
AreaSRE
Arrangementurlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Stratification and mixing...
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Languageen
Target Fileaugusto_stratification.pdf
User Groupsimone
Visibilityshown
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
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Next Higher Units8JMKD3MGPCW/3F3NU5S
DisseminationWEBSCI; PORTALCAPES; SCOPUS.
Host Collectionurlib.net/www/2017/11.22.19.04
6. Notes
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