Remote sensing of water quality in an Australian tropical freshwater impoundment using matrix inversion and MERIS images

Campbell, Glenn; Phinn, Stuart R.; Dekker, Arnold G.; Brando, Vittorio E.

doi:10.1016/j.rse.2011.05.003

Cited by 66 publications

(40 citation statements)

References 37 publications

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“…This approach has been utilized to estimate the different OSCs simultaneously [1,5,36]. This kind of modeling enables retrieval of the concentrations of OSCs because a and b b may be decomposed in terms of specific absorption and backscattering coefficient (a j * and b bj * , respectively) of each OSC, j, and their concentrations, C j , as shown in Equations (5) and (6), respectively [1,7].…”

Section: Parameterization Of the Semi-analytical Algorithmmentioning

confidence: 99%

“…The presence of photoactive pigments in phytoplankton cells enables the detection of algae bloom from space-borne imagery [4]. Due to the interaction of light with different water column constituents, remote sensing has been widely applied in ecological studies [1,5]. The absorption and scattering properties (a and b b , respectively, referring to Table 1 for abbreviations and symbols) of Ratio of backscattering coefficient to the sum of absorption and backscattering coefficient -Y Spectral power of b bp -Semi-analytical algorithms are simplified solutions to the radiative transfer equation [4,18].…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Chlorophyll-a Concentration from Optimizing a Semi-Analytical Algorithm in Productive Inland Waters

et al. 2018

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Abstract:The high nutrient concentrations coming from non-point and point pollution have been linked to algae blooms, especially in hydroelectric plant reservoirs, due to higher residence time compared to rivers. The monitoring of algae is important to prevent risk of contamination by toxins in reservoirs used for drinking water supply. In this context, a physical model-based approach was adopted to retrieve chlorophyll-a (chl a) concentration, a photosynthetic pigment found in all phytoplankton species. We assumed that a semi-analytical algorithm parameterized to a eutrophic reservoir could also be applied to other eutrophic reservoirs, at least the specific inherent optical properties (SIOPs) are not similar. The parameterization was carried out based on Ocean and Land Color Instrument (OLCI) bands aboard Sentinel-3 spacecraft. In our study, the semi-analytical approach showed good performance in retrieving chl a content, with a normalized root mean square error (NRMSE) of 18.7%. The findings encourage the use of a unique semi-analytical algorithm in a reservoir cascade, where the impoundments present similar bio-optical status. The good performance of the algorithm indicates that this approach is rather useful in predicting trophic status in reservoirs.

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Section: Parameterization Of the Semi-analytical Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimation of Chlorophyll-a Concentration from Optimizing a Semi-Analytical Algorithm in Productive Inland Waters

et al. 2018

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“…Water eutrophicationhave, characterized by abnormal reproduction of algae and other aquatic organisms in aquatic ecosystems, are one of the most serious environmental problems in lakes, reservoirs and other natural bodies of water [1,2]. It not only deteriorate water quality, block aquatic organism physiological development and damage the structure of aquatic ecosystems, which also destroy the function of bodies of water and the ecological environment [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Genotoxicity effects of Phanerochaete chrysosporium against harmful algal bloom species by comet assay

Zeng¹,

Zhang²,

Wang³

2018

Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)

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Abstract. Water eutrophication have become serious ecological problems. White-rot fungi have been demonstrated to be a feasible means of control, but the genotoxicity mechanisms involved have not been reported. In this study, Cryptomonas obovata FACHB-1301 was co-cultured with Phanerochaete chrysosporium under optimal conditions of 250 mg -l at 25 °C with DO 7.0 mg -l for 1, 3, 5 and 7 d. Compared to the control, the DNA damage in the algal species was greatly decreased after treatment with Phanerochaete chrysosporium by comet assay. The result showed that Phanerochaete chrysosporium could effectively decreased genotoxicity effects .

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“…The development of remote sensing and GIS technologies which also have been commonly used to support studies in managing coastal and in-shore marine environment, can become an option to provide a solution for fore mentioned environmental problems (Campbell et al, 2011;Pan et al, 2013). Therefore, this paper aims to examine the uses of remote sensing and GIS approaches for the sea-water quality in Dodokan Estuary and its surrounding in-shore marine environment, by identifying an appropriate mapping unit to reduce the number of sampling, to evaluate the marine environment suitability for various biota conservation areas, and in contras, mari-and aqua-culture.…”

Section: Introductionmentioning

confidence: 99%

Water Quality Assessment Using Remote Sensing and GIS for In-shore Marine Environment Suitability

Ruslisan

Kalam

Dwininta

et al. 2016

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Ruslisan, Nur H. Kalam, Aglis C.Dwinita, Muhammad H. Habibi, Ernawati T. Rahayu, Nurkhovia Dewi, Eleonora E. Henny K., and Wirastuti Widyamanti. 2016. Water Quality Assesment Using Remote Sensing and GIS for In-shore Marine Environment Suitability. Aquaculture Indonesiana, 17 (2): 46-53. In-shore marine environment and its adjoining estuary has a potential susceptibility to water pollution due to the continuous discharge of its unhealthy catchment. Seawater quality studies commonly require a very detailed water sampling and analysis, leading to high expenditures on time and energy. This study aims to examine the water quality of the Dodokan Estuary using remote sensing and geographic information system (GIS) approaches, and to determine the most appropriate water environment mapping unit for marine environment suitability studies. Landsat 8 and QuickBird® were used to extract water quality parameters using related spectral transformations. Field surveys were conducted concurrently to the Landsat 8 acquisition time on the study area, to collect water samples for laboratory analysis including sea surface temperature (SST), chlorophylla, Dissolved Oxygen (DO), and Total Suspended Solid (TSS). Mapping units were generated based on visual interpretation on QuickBird® for estuarine plumes, to identify the possible distribution of suspended material from its catchment. The statistical analyses present that the parameter extracted from the satellite imagery and from laboratory analysis produces R values of 0.7 in average, despite its low value on chlorophyll-a. By utilizing assorted sea-water marine suitability criteria, it can be concluded that the inshore marine environment in the Dodokan Estuary and its surrounding area are suitable for various biota conservation e.g. coral, sea-grass, and mangrove, and in contrast, marine aquaculture. The knowledgeable uses of remote sensing and GIS also assist the sea-water qualities assessment mapping in term of providing boarder understanding of a water environment condition to effectively minimize the cost of sampling.

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Remote sensing of water quality in an Australian tropical freshwater impoundment using matrix inversion and MERIS images

Cited by 66 publications

References 37 publications

Estimation of Chlorophyll-a Concentration from Optimizing a Semi-Analytical Algorithm in Productive Inland Waters

Estimation of Chlorophyll-a Concentration from Optimizing a Semi-Analytical Algorithm in Productive Inland Waters

Genotoxicity effects of Phanerochaete chrysosporium against harmful algal bloom species by comet assay

Water Quality Assessment Using Remote Sensing and GIS for In-shore Marine Environment Suitability

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