Spectral characterization of colored dissolved organic matter for productive inland waters and its source analysis

2014 ◽  
Vol 25 (3) ◽  
pp. 295-308 ◽  
Author(s):  
Kaishan Song ◽  
Lin Li ◽  
Lenore Tedesco ◽  
Nicolas Clercin ◽  
Linhai Li ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Spectral Characterization ◽  
Source Analysis ◽  
Inland Waters ◽  
Colored Dissolved Organic Matter

Spectral characterization of chromophoric dissolved organic matter (CDOM) in a fjord (Doubtful Sound, New Zealand)

2008 ◽  
Vol 70 (4) ◽  
pp. 397-409 ◽  
Author(s):  
Michael Gonsior ◽  
Barrie M. Peake ◽  
William J. Cooper ◽  
Rudolf Jaffé ◽  
Heather Young ◽  
...  
Keyword(s):  
Organic Matter ◽  
New Zealand ◽  
Dissolved Organic Matter ◽  
Spectral Characterization ◽  
Chromophoric Dissolved Organic Matter

scholarly journals Validation of Water Quality Monitoring Algorithms for Sentinel-2 and Sentinel-3 in Mediterranean Inland Waters with In Situ Reflectance Data

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 686
Author(s):  
Xavier Sòria-Perpinyà ◽  
Eduardo Vicente ◽  
Patricia Urrego ◽  
Marcela Pereira-Sandoval ◽  
Carolina Tenjo ◽  
...  
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Optical Sensors ◽  
Satellite Image ◽  
European Space Agency ◽  
Water Quality Monitoring ◽  
Inland Waters ◽  
Colored Dissolved Organic Matter ◽  
Sentinel 2

Freshwater quality maintenance is essential for human use and ecological functions. To ensure this objective, governments establish programs for a continuous monitoring of the inland waters state. This could be possible with Sentinel-2 (S2) and Sentinel-3 (S3), two remote sensing satellites of the European Space Agency, equipped with spectral optical sensors. To determine optimal water quality algorithms applicable to their spectral bands, 36 algorithms were tested for different key variables (chlorophyll a (Chl_a), colored dissolved organic matter (CDOM), colored dissolved organic matter (TSS), phycocyanin (PC) and Secchi disk depth (SDD)). A database of 296 water-leaving reflectance spectra were used, as well as concomitant water quality measurements of Mediterranean reservoirs and lakes of Spain. Two equal data sets were used for calibration and validation. The best algorithms were recalculated using all database and used the following band relations: SDD, R560/R700; CDOM, R665/R490; PC, R705/R665 for S2 and R620, R665, R709 and R779 for S3, using a semi-analytical algorithm; R700 for TSS < 20 mg/L and R783/R492 (S2) or R779/R510 (S3) for TSS > 20 mg/L; and for Chl_a, the maximum (R443; R492)/R560 for Chl_a < 5 mg/m3 and R700/R665 for Chl_a > 5 mg/m3. A preliminary test with a satellite image in a well-known reservoir showed results consistent with the expected ranges and spatial patterns of the variables.

scholarly journals Re-parameterization of a quasi-analytical algorithm for colored dissolved organic matter dominant inland waters

2016 ◽  
Vol 53 ◽  
pp. 128-145 ◽  
Author(s):  
Igor Ogashawara ◽  
Deepak R. Mishra ◽  
Renata F.F. Nascimento ◽  
Enner H. Alcântara ◽  
Milton Kampel ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Inland Waters ◽  
Colored Dissolved Organic Matter ◽  
Analytical Algorithm
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