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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m16b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador6qtX3pFwXQZGivnK2Y/S8MQ4
Repositóriosid.inpe.br/mtc-m17@80/2007/11.12.17.22   (acesso restrito)
Última Atualização2015:05.19.12.54.09 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m17@80/2007/11.12.17.22.44
Última Atualização dos Metadados2018:06.05.03.35.01 (UTC) administrator
Chave SecundáriaINPE--PRE/
ISSN0016-8033
Chave de CitaçãoSilvaOlivBarbCamp:2007:ApMaUs
TítuloApparent-density mapping using entropic regularization
Ano2007
MêsJuly-Aug.
Data de Acesso21 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho4955 KiB
2. Contextualização
Autor1 Silva, João B. C.
2 Oliveira, Francisco S.
3 Barbosa, Valéria C. F.
4 Campos Velho, Haroldo Fraga de
Grupo1
2
3
4 LAC-INPE-MCT-BR
Afiliação1 Universidade Federal do Pará (UFPA)
2 Universidade Federal do Pará (UFPA)
3 Observatório Nacional
4 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 joaobcsy@yahoo.com.br
2 frasol@ufpa.br
3 valcris@on.br
4 haroldo@lac.inpe.br
RevistaGeophysics
Volume72
Número4
Páginas151-160
Histórico (UTC)2007-11-12 17:22:44 :: simone -> administrator ::
2012-11-24 01:32:15 :: administrator -> simone :: 2007
2013-02-20 15:20:02 :: simone -> administrator :: 2007
2013-11-19 02:11:20 :: administrator -> marciana :: 2007
2015-05-19 12:54:09 :: marciana -> administrator :: 2007
2018-06-05 03:35:01 :: administrator -> marciana :: 2007
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChavePractical applications
uniqueness theorems
informaiton
gravimetry
ResumoWe present a new apparent-density mapping method on the horizontal plane that combines the minimization of the first-order entropy with the maximization of the zeroth-order entropy of the estimated density contrasts. The interpretation model consists of a grid of vertical, juxtaposed prisms in both horizontal directions. We assume that the top and the bottom of the gravity sources are flat and horizontal and estimate the prisms' density contrasts. The minimization of the first-order entropy favors solutions presenting sharp borders, and the maximization of the zeroth-order entropy prevents the tendency of the source estimate to become a single prism. Thus, a judicious combination of both constraints may lead to solutions characterized by regions with virtually constant estimated density contrasts separated by sharp discontinuities. We apply our method to synthetic data from simulated intrusive bodies in sediments that present flat and horizontal tops. By comparing our results with those obtained with the smoothness constraint, we show that both methods produce good and equivalent locations of the sources' central positions. However, the entropic regularization delineates the boundaries of the bodies with greater resolution, even in the case of 100-m-wide bodies separated by a distance as small as 50 m. Both the proposed and the global smoothness constraints are applied to real anomalies from the eastern Alps and from the Matsitama intrusive complex, northeastern Botswana. In the first case, the entropic regularization delineates two sources, with a horizontal and nearly flat top being consistent with the known geologic information. In the second case, both constraints produce virtually the same estimate, indicating, in agreement with results of synthetic tests, that the tops of the sources are neither flat nor horizontal.
ÁreaCOMP
Arranjourlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAC > Apparent-density mapping using...
Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreementnão têm arquivos
4. Condições de acesso e uso
Idiomaen
Arquivo Alvosilva_apparent.pdf
Grupo de Usuáriosadministrator
marciana
simone
Grupo de Leitoresadministrator
marciana
Visibilidadeshown
Política de Arquivamentodenypublisher denyfinaldraft
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3ESGTTP
DivulgaçãoWEBSCI; PORTALCAPES.
Acervo Hospedeirolcp.inpe.br/ignes/2004/02.12.18.39
cptec.inpe.br/walmeida/2003/04.25.17.12
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel doi e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
e-Mail (login)marciana
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