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Error propagation at inversion of irradiance reflectance spectra in case-2 waters

Gege, Peter (2002) Error propagation at inversion of irradiance reflectance spectra in case-2 waters. Ocean Optics Conference XVI, Santa Fe, USA, November 18-22, 2002.

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Abstract

Many algorithms for determination of water constituents in case-2 waters make use of the Gordon approximation for the subsurface irradiance reflectance. It parameterises the water constituents by specific absorption and backscattering spectra. Based on specific optical properties of water constitutents from Lake Constance, error propagation at inversion of the Gordon algorithm was investigated for concentration values typical for that lake. The following error sources were considered: proportionality factor f in the Gordon equation; curve forms of suspended matter backscattering spectra, Gelbstoff and phytoplankton absorption spectra; concentrations of phytoplankton, suspended matter and Gelbstoff; statistical noise; radiometric resolution. A ranking of the error sources is performed, required accuracies of model inputs are derived, and a strategy for finding suitable start values of the fit parameters is suggested.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2002,
Title:Error propagation at inversion of irradiance reflectance spectra in case-2 waters
Authors:
AuthorsInstitution or Email of Authors
Gege, PeterUNSPECIFIED
Date:2002
Status:Published
Keywords:spectroscopy, water, inversion
Event Title:Ocean Optics Conference XVI, Santa Fe, USA, November 18-22, 2002
Organizer:ONR, NASA and The Oceanography Society
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Cornelia Roehl
Deposited On:27 Jan 2006
Last Modified:06 Jan 2010 22:10

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