| 1. Identity statement | |
| Reference Type | Thesis or Dissertation (Thesis) |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZGivnJSY/Lrapy |
| Repository | sid.inpe.br/MTC-m13@80/2006/06.12.14.30 (restricted access) |
| Last Update | 2006:12.18.14.30.14 (UTC) simone |
| Metadata Repository | sid.inpe.br/MTC-m13@80/2006/06.12.14.30.01 |
| Metadata Last Update | 2019:11.18.18.22.21 (UTC) simone |
| Secondary Key | INPE-14195-TDI/1097 |
| Citation Key | Souto:2006:RePeVe |
| Title | Recuperação de perfis verticais de propriedades óticas inerentes a partir da radiação emergente da água  |
| Alternate Title | Reconstruction of vertical profiles of inherent optical properties from upwelling water radiances |
| Course | CAP-SPG-INPE-MCT-BR |
| Year | 2006 |
| Secondary Date | 20061117 |
| Date | 2006-03-28 |
| Access Date | 2024, Apr. 25 |
| Thesis Type | Tese (Doutorado em Computação Aplicada) |
| Secondary Type | TDI |
| Number of Pages | 139 |
| Number of Files | 428 |
| Size | 17899 KiB |
| 2. Context | |
| Author | Souto, Roberto Pinto |
| Group | CAP-SPG-INPE-MCT-BR |
| Committee | Chalhoub, Ezzat Selim (presidente) Stephany, Stephan (orientador) Campos Velho, Haroldo Fraga de (orientador) Ramos, Fernando Manuel Kampel, Milton Siewert, Charles Edward Barbosa, Valéria Cristina Ferreira Barichello, Liliane Basso |
| University | Instituto Nacional de Pesquisas Espaciais (INPE) |
| City | São José dos Campos |
| History (UTC) | 2006-06-12 14:30:01 :: jefferson -> administrator :: 2006-09-27 21:19:59 :: administrator -> jefferson :: 2007-07-18 19:41:13 :: jefferson -> administrator :: 2008-09-05 21:22:41 :: administrator -> jefferson :: 2009-04-30 16:40:54 :: jefferson -> administrator :: 2009-07-07 20:07:57 :: administrator -> jefferson :: 2009-11-05 14:57:26 :: jefferson -> alessandra@sid.inpe.br :: 2010-01-11 19:24:23 :: alessandra@sid.inpe.br -> viveca@sid.inpe.br :: 2012-07-11 12:04:32 :: viveca@sid.inpe.br -> administrator :: 2019-11-18 18:17:20 :: administrator -> simone :: 2006 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Keywords | ótica hidrológica problemas inversos otimização por colônia de formigas processamento paralelo hydrologic optics inverse problems ant colony optimization parallel computing |
| Abstract | O presente trabalho propõe uma metodologia para reconstrução de propriedades óticas inerentes de águas naturais, perfis verticais dos coeficientes de absorção e de espalhamento, a partir de dados radiométricos multiespectrais da radiação emergente da água. O problema direto de transferência radiativa é resolvido pelo método LTSN e empregam-se modelos bio-ópticos que correlacionam os coeficientes de absorção e de espalhamento com a concentração de clorofila da água. O correspondente problema inverso foi formulado como um problema de otimização que é iterativamente resolvido por uma metaheurística inspirada no comportamento coletivo das formigas, o método Ant Colony Optimization. Foi incorporado um novo esquema de regularização intrínseca, que consiste na pré-seleção das soluções candidatas a cada geração com base na sua suavidade. Foram efetuadas diversas reconstruções de perfis de concentração de clorofila empregando dados sintéticos com e sem ruído referentes a (i) radiâncias "in situ"com e sem simetria azimutal e (ii) radiâncias multiespectrais emergentes na água, tendo obtidos bons resultados. Adicionalmente foram implementadas versões paralelas do método LTSN e do otimizador. ABSTRACT: The current work proposes a metodology for the reconstruction of inherent optical properties of natural waters, vertical profiles of the absorption and scattering coefficients, from multispectral radiometric data of the radiation emerging from water. The radiative transfer direct model is solved by the LTSN method and bio-optical models are employed to correlate the absorption and scattering coefficients to the chlorophyll concentration in the water. The corresponding inverse problem is formulated as an optimization problem and iteratively solved by a metaheuristics inspired on the behavior of ants, the Ant Colony Optimization method. It was included a new intrinsic regularization scheme that pre-selects candidate solutions at every iteration based on their smoothness. Several reconstructions of the chlorophyll concentration profile were performed using noiseless and noisy synthetic data related to (i) in situ radiances with and without azimuthal symmetry, and (ii) emerging multispectral radiances. These reconstructions yielded good quality solutions. Furthermore, parallel versions of the LTSN method and of the optimizer were implemented. |
| Area | COMP |
| Arrangement | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CAP > Recuperação de perfis... |
| 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 | pt |
| Target File | publicacao.pdf |
| User Group | administrator jefferson |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3F2PHGS |
| Dissemination | NTRSNASA; BNDEPOSITOLEGAL. |
| Host Collection | lcp.inpe.br/ignes/2004/02.12.18.39 cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | academicdepartment affiliation archivingpolicy archivist callnumber contenttype copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format isbn issn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress readergroup resumeid rightsholder schedulinginformation secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url versiontype |
| 7. Description control | |
| e-Mail (login) | simone |
| update | |