%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3ESGTTP
%@archivingpolicy denypublisher denyfinaldraft24
%@resumeid
%@resumeid 8JMKD3MGP5W/3C9JHC3
%@resumeid 8JMKD3MGP5W/3C9JJ9D
%@usergroup administrator
%@usergroup simone
%3 Reconstruction of vertifcal profile.pdf
%X An inverse hydrologic optics problem is solved using a recent intrinsic regularization scheme that is coupled to a standard Ant Colony System (ACS). The regularization scheme pre-selects candidate solutions based on their smoothness, quantified by a Tikhonov norm. The Chlorophyll profile is reconstructed from upwelling radiance experimental measurements in the ocean water using 10 wavelengths (multispectral approach) and upward polar directions. Vertical profiles of the absorption and scattering coefficients are estimated from the Chlorophyll profile by means of bio-optical models. The inverse problem is formulated as an optimization problem and iteratively solved by an ACS using the radiative transfer equation as direct model. An objective function is given by the square difference between computed and experimental radiances at every iteration. Each candidate solution corresponds to a discrete Chlorophyll profile. The radiative transfer equation is solved using the Laplace transform discrete ordinate (LTSN) method. A parallel implementation of the Ant Colony System is used and executed in a distributed memory machine.
%8 Nov.
%N 1-4
%T Reconstruction of vertical profiles of the absorption and scattering coefficients from multispectral radiances
%@secondarytype PRE PI
%K Hydrologic optics, Multi-spectral inversion, Ant Colony System optimization, Parallel processing.
%@group LAC-INPE-MCT-BR
%@group LAC-INPE-MCT-BR
%@group LAC-INPE-MCT-BR
%@secondarykey INPE-14380-PRE/9467
%@copyholder SID/SCD
%@issn 0378-4754
%2 sid.inpe.br/mtc-m17@80/2006/12.01.16.16.39
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%B Mathematics and Computers in Simulation
%P 255-267
%4 sid.inpe.br/mtc-m17@80/2006/12.01.16.16
%D 2006
%V 73
%A Souto, Roberto Pinto,
%A Campos Velho,  Haroldo Fraga de,
%A Stephany, Stephan,
%@dissemination PORTALCAPES
%@area COMP