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Description
Title Deriving inherent optical properties and associated inversion - uncertainties in the Dutch lakes
Type Publication
Abstract:

Remote sensing of water quality in inland waters requires reliable retrieval algorithms, accurate atmospheric correction and consistent method for uncertainty estimation. In this paper, the GSM semi-analytical inversion model is modified for inland waters to derive inherent optical properties (IOPs) and their spectral dependencies from air and space borne data. The modified model was validated using two data sets from the Veluwe and the Vecht Dutch lakes. For the Veluwe lakes, the model was able to derive a linear relationship between measured concentrations and estimated IOPs with R2 values above 0.7 for chlorophyll-a (Chl-a) and up to 0.9 for suspended particulate matters (SPM). In the Vecht lakes, the modified model derived accurate values of IOPs. The R2 values were 0.89 for Chl-a and up to 0.95 for SPM. The RMSE values were 0.93 mg m−3 and 0.56 g m−3 for Chl-a and SPM respectively. Finally, the IOPs of the Veluwe lakes are derived from multi-spectral, ocean color and hyperspectral airborne data. Inversion-uncertainties of the derived IOPs were also estimated using a standard nonlinear regression technique. The study shows that inversion-uncertainties of remote sensing derived IOPs are proportional to water turbidity.

Available from http://www.hydrol-earth-syst-sci.net/13/1113/2009/
Author
SALAMA Mhd.suhyb
SU Zhongbo
VERHOEF Wouter
A. Dekker, C. M. Mannaerts
Reference
Journal Hydrology and Earth System Sciences
Volume 13
Pages 1113-1121
Year 2009
Times cited 3
Institute country Netherlands
Type of science
  • Hydrology (includes water quality, fresh water and inland water)
  • Pollution (includes air, sea and soil)
Field of science
  • Biosphere
  • Continental surface
  • Satellite calibration/validation
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Added March 11, 2011, 00:00
Last update April 19, 2016, 11:04
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File name Salama_etal_HESS_2009_20110311144627.pdf
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