Retrieving inherent optical properties for turbid inland waters: an improved quasi-analytical algorithm based on the linear spectral backscattering coefficient constraint

2017 ◽  
Author(s):  
Feng Xie ◽  
Changxing Zhang ◽  
Honglan Shao ◽  
Chengyu Liu ◽  
Zhihui Liu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Inland Waters ◽  
Backscattering Coefficient ◽  
Inherent Optical Properties ◽  
Analytical Algorithm ◽  
Turbid Inland Waters

scholarly journals Comparison of SeaWiFS and MODIS time series of inherent optical properties for the Adriatic Sea

2011 ◽  
Vol 8 (1) ◽  
pp. 85-111 ◽  
Author(s):  
F. Mélin
Keyword(s):  
Time Series ◽  
Optical Properties ◽  
Adriatic Sea ◽  
Total Absorption ◽  
Backscattering Coefficient ◽  
Inherent Optical Properties ◽  
Analytical Algorithm ◽  
Phytoplankton Absorption ◽  
Mean Square Difference ◽  
Particle Backscattering

Abstract. Time series of inherent optical properties (IOPs) derived from SeaWiFS and MODIS are compared for the Adriatic Sea. The IOPs are outputs of the Quasi-Analytical Algorithm and include total absorption a, phytoplankton absorption aph, absorption associated with colored detrital material (CDM) acdm, and particle backscattering coefficient bbp. The average root-mean square difference Δ computed for log-transformed distributions decreases for a from 0.084 at 412 nm to 0.052 at 490 nm, is higher for aph(443) (0.149) than for acdm(443) (0.071), and is approximately 0.165 for bbp at various wavelengths. The SeaWiFS a at 443 and 490 nm, aph at 443 nm and bbp are on average higher than the MODIS counterparts. Statistics show significant variations in space and time. There is an overall increasing gradient for Δ associated with the absorption terms from the open Southern and Central Adriatic to the northwest part of the basin, and a reversed gradient for the particulate backscattering coefficient. Only a(412) and acdm(443) currently represent an unbiased continuity bridging the SeaWiFS and MODIS periods for the Adriatic Sea.

The relation between inherent optical properties and reflectance spectra in turbid inland waters

1997 ◽  
Vol 15 (1-4) ◽  
pp. 59-74 ◽  
Author(s):  
A.G. Dekker ◽  
H.J. Hoogenboom ◽  
L.M. Goddijn ◽  
T.J.M. Malthus
Keyword(s):  
Optical Properties ◽  
Reflectance Spectra ◽  
Inland Waters ◽  
Inherent Optical Properties ◽  
Turbid Inland Waters

scholarly journals Comparison of SeaWiFS and MODIS time series of inherent optical properties for the Adriatic Sea

Ocean Science ◽  
2011 ◽  
Vol 7 (3) ◽  
pp. 351-361 ◽  
Author(s):  
F. Mélin
Keyword(s):  
Time Series ◽  
Optical Properties ◽  
Adriatic Sea ◽  
Total Absorption ◽  
Backscattering Coefficient ◽  
Inherent Optical Properties ◽  
Analytical Algorithm ◽  
Phytoplankton Absorption ◽  
Mean Square Difference ◽  
Particle Backscattering

Abstract. Time series of inherent optical properties (IOPs) derived from SeaWiFS and MODIS are compared for the Adriatic Sea. The IOPs are outputs of the Quasi-Analytical Algorithm and include total absorption a, phytoplankton absorption aph, absorption associated with colored detrital material (CDM) acdm, and particle backscattering coefficient bbp. The average root-mean square difference Δ computed for log-transformed distributions decreases for $a$ from 0.084 at 412 nm to 0.052 at 490 nm, is higher for aph(443) (0.149) than for acdm(443) (0.071), and is approximately 0.165 for bbp at various wavelengths. The SeaWiFS a at 443 and 490 nm, aph at 443 nm and bbp are on average higher than the MODIS counterparts. Statistics show significant variations in space and time. There is an overall increasing gradient for Δ associated with the absorption terms from the open southern and central Adriatic to the northwest part of the basin, and a reversed gradient for the particulate backscattering coefficient. For time series analysis, only a(412) and acdm(443) currently present an unbiased continuity bridging the SeaWiFS and MODIS periods for the Adriatic Sea.

Estimation of inherent optical properties using quasi-analytical algorithm along the coastal waters of southeast Arabian Sea

2019 ◽  
Vol 69 (8) ◽  
pp. 925-937
Author(s):  
Kumaraswami Munnooru ◽  
Sisir Kumar Dash ◽  
Gijjapu Durga Rao ◽  
Ramu Karri ◽  
Vinjamuri Ranga Rao
Keyword(s):  
Optical Properties ◽  
Coastal Waters ◽  
Arabian Sea ◽  
Inherent Optical Properties ◽  
Analytical Algorithm
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