Data/hora: 14/06/2024 17:54:11

Provedor de dados: | 5
País: | France
Título: | Surface suspended matter off the Rhone river mouth from visible satellite imagery
Autores: | Forget, P; Ouillon, S.
Data: | 1998-11
Ano: | 1998
Palavras-chave: | Réflectance; Matière en suspension; Télédétection; Panache fluvial; Rhône; Reflectance; Suspended matter; Remote sensing; River plume; Rhone river.
Resumo: | The quantification of surface Total Suspended Matter (TSM) off the Rhone river mouth is investigated using SPOT-XS and Landsat-TM images collected in November 1994. The method of satellite data calibration from in situ measurements is discussed. It is based on TSM concentration measurements through filtration of surface water samples and on radiometric data collected with a 256-channel spectroradiometer in the range 400-1100 nm. Empirical relationships between reflectance and TSM concentration are established by linear regression analysis of the data. These relationships are then applied to the image data corrected from atmospheric and surface effects. A good agreement, within a factor of less than two, was found on derived TSM concentration values as compared with sea truth data. The results for three different river flows are presented: a quasi-normal-river discharge, a flood situation and an intermediate situation. The TSM corresponding concentration maps are presented and discussed.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00325/43637/43228.pdf

DOI:10.1016/S0399-1784(99)80003-6

http://archimer.ifremer.fr/doc/00325/43637/

Editor: | Gauthier-villars/editions Elsevier
Formato: | application/pdf
Fonte: | Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 1998-11 , Vol. 21 , N. 6 , P. 739-749

Fonte:

Elsevier, Paris

info:eu-repo/semantics/openAccess

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