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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3Q58GRB
Repositóriosid.inpe.br/mtc-m21b/2017/11.30.15.15
Última Atualização2017:11.30.15.15.35 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21b/2017/11.30.15.15.35
Última Atualização dos Metadados2021:07.28.23.05.55 (UTC) administrator
DOI10.5194/acp-2017-17
ISSN1680-7367
Chave de CitaçãoMakarievaGoNeShNoLi:2017:QuGlAt
TítuloQuantifying the global atmospheric power budget
Ano2017
Data de Acesso16 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho1104 KiB
2. Contextualização
Autor1 Makarieva, Anastassia M.
2 Gorshkov, Victor G.
3 Nefiodov, Andrei V.
4 Sheil, Douglas
5 Nobre, Antonio Donato
6 Li, Bai-Lian
Grupo1
2
3
4
5 COCST-COCST-INPE-MCTIC-GOV-BR
Afiliação1 Petersburg Nuclear Physics Institute
2 Petersburg Nuclear Physics Institute
3 Petersburg Nuclear Physics Institute
4 Norwegian University of Life Sciences
5 Instituto Nacional de Pesquisas Espaciais (INPE)
6 University of California
Endereço de e-Mail do Autor1
2
3
4
5 anobre27@gmail.com
RevistaAtmospheric Chemistry and Physics Discussion
Volume17
Páginas1-52
Nota SecundáriaC_ASTRONOMIA_/_FÍSICA
Histórico (UTC)2017-11-30 15:15:35 :: simone -> administrator ::
2017-11-30 15:15:35 :: administrator -> simone :: 2017
2017-11-30 15:16:51 :: simone -> administrator :: 2017
2021-07-28 23:05:55 :: administrator -> simone :: 2017
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
ResumoThe power of atmospheric circulation is a key measure of the Earths climate system. The mismatch between predictions and observations under a warming climate calls for a reassessment of how atmospheric power W is defined, estimated and constrained. Here we review published formulations for W and show how they differ when applied to a moist atmosphere. Three factors, a non-zero source/sink in the continuity equation, the difference between velocities of gaseous air and condensate, and interaction between the gas and condensate modifying the equations of motion, affect the formulation of W. Starting from the thermodynamic definition of mechanical work, we derive an expression for W from an explicit consideration of the equations of motion and continuity. Our analyses clarify how some past formulations are incomplete or invalid. Three caveats are identified. First, W critically depends on the boundary condition for gaseous air velocity at the Earths surface. Second, confusion between gaseous air velocity and mean velocity of air and condensate in the expression for W results in gross errors despite the observed magnitudes of these velocities are very close. Third, W expressed in terms of measurable atmospheric parameters, air pressure and velocity, is scale-specific; this must be taken into account when adding contributions to W from different processes. We further present a formulation of the atmospheric power budget, which distinguishes three components of W: the kinetic power associated with horizontal pressure gradients (WK), the gravitational power of precipitation (WP ) and the condensate loading (Wc). This formulation is valid with an accuracy of the squared ratio of the vertical to horizontal air velocities. Unlike previous approaches, it allows evaluation of WP + Wc without knowledge of atmospheric moisture or precipitation. This formulation also highlights that WP and Wc are the least certain terms in the power budget as they depend on vertical velocity; WK depending on horizontal velocity is more robust. We use MERRA and NCAR/NCEP re-analyses to evaluate the atmospheric power budget at different scales. Estimates of WK are found to be consistent across the re-analyses, while estimates for W and WP drastically differ. We then estimate independent precipitation-based values of WP and discuss how such estimates could reduce uncertainties. Our analyses indicate that WK increases with temporal resolution approaching our theoretical estimate for condensation-induced circulation when all convective motion is resolved. Implications of these findings for constraining global atmospheric power are discussed.
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4. Condições de acesso e uso
URL dos dadoshttp://mtc-m21b.sid.inpe.br/ibi/8JMKD3MGP3W34P/3Q58GRB
URL dos dados zipadoshttp://mtc-m21b.sid.inpe.br/zip/8JMKD3MGP3W34P/3Q58GRB
Idiomaen
Arquivo Alvomakarieva_quantifying.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
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Visibilidadeshown
Política de Arquivamentoallowpublisher allowfinaldraft
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3F3T29H
Lista de Itens Citandosid.inpe.br/bibdigital/2013/10.19.20.40 2
DivulgaçãoWEBSCI; PORTALCAPES.
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark mirrorrepository month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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