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Biplob Das
Researcher at Water Security Agency
Publications - 25
Citations - 704
Biplob Das is an academic researcher from Water Security Agency. The author has contributed to research in topics: Diatom & Oil sands. The author has an hindex of 13, co-authored 25 publications receiving 637 citations. Previous affiliations of Biplob Das include University of Kentucky & University of Chittagong.
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Experimental calibration of lake-sediment spectral reflectance to chlorophyll a concentrations: methodology and paleolimnological validation
TL;DR: In this article, the spectral properties of sedimentary chlorophyll a using visible-near infrared reflectance (VNIR) spectroscopy were determined from a dilution series (n = 10) involving incremental additions of pulverized modern algae to a lake sediment matrix of low organic content.
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Current Conveyor-Based Square/Triangular Waveform Generators With Improved Linearity
TL;DR: Two second-generation current conveyor (CCII+)-based resistance-capacitance (RC) square/triangular waveform generators, which have been derived from their voltage-mode op-amp-based schemes, with independent control of frequency are presented.
Journal ArticleDOI
Inferring sedimentary chlorophyll concentrations with reflectance spectroscopy: a novel approach to reconstructing historical changes in the trophic status of mountain lakes
TL;DR: The relationships between visible-near-infrared spectral properties of lake sediments and measured pigment concentrations for lakes that have been exposed recently to anthropogenic nitrogen deposition are explored.
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Sources of polycyclic aromatic hydrocarbons (PAHs) to northwestern Saskatchewan lakes east of the Athabasca oil sands
TL;DR: In this paper, the authors examined sources of polycyclic aromatic hydrocarbons (PAHs) in surface sediments and dated sediment cores from Saskatchewan lakes situated ∼100-220 km east-northeast of the main area of bitumen mining activities.
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Spatiotemporal patterns of mercury accumulation in lake sediments of western North America.
Paul E. Drevnick,Colin A. Cooke,Daniella Barraza,Jules M. Blais,Kenneth H. Coale,Brian F. Cumming,Chris J. Curtis,Biplob Das,William F. Donahue,Collin A. Eagles-Smith,Daniel R. Engstrom,William F. Fitzgerald,Chad V. Furl,John E. Gray,Roland I. Hall,Togwell A. Jackson,Kathleen R. Laird,W. Lyle Lockhart,Robie W. Macdonald,M. Alisa Mast,Callie A. Mathieu,Derek C. G. Muir,Peter M. Outridge,Scott A. Reinemann,Sarah E. Rothenberg,Ana Carolina Ruiz-Fernández,Vincent L. St. Louis,Rhea D. Sanders,Hamed Sanei,E.K. Skierszkan,Peter C. Van Metre,Timothy J. Veverica,Johan A. Wiklund,Brent B. Wolfe +33 more
TL;DR: Research is warranted to understand whether mountainous watersheds act as permanent sinks for mercury or if export of "legacy" mercury (deposited in years past) will delay recovery when/if emissions reductions are achieved.