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Andrew E. Laursen
Researcher at Ryerson University
Publications - 37
Citations - 1555
Andrew E. Laursen is an academic researcher from Ryerson University. The author has contributed to research in topics: Denitrification & Biosolids. The author has an hindex of 16, co-authored 36 publications receiving 1336 citations. Previous affiliations of Andrew E. Laursen include University of Maryland Center for Environmental Science & Rutgers University.
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Journal ArticleDOI
Scaling the gas transfer velocity and hydraulic geometry in streams and small rivers
Peter A. Raymond,Christopher J. Zappa,David Butman,Thomas L. Bott,Jody D. Potter,Patrick J. Mulholland,Andrew E. Laursen,William H. McDowell,Denis Newbold +8 more
TL;DR: In this paper, a metadata analysis of 563 direct gas tracer release experiments was conducted to examine scaling laws for the gas transfer velocity and the product of stream slope and velocity, which is in alignment with theory on stream energy dissipation.
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Diurnal patterns of denitrification, oxygen consumption and nitrous oxide production in rivers measured at the whole‐reach scale
TL;DR: In this article, the authors measured denitrification, oxygen consumption and N2O flux in three small rivers (discharge approximately 2-27 m 3 s )1 ) at the whole reach scale during Spring and Summer, 2002.
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Multi-scale measurements and modeling of denitrification in streams with varying flow and nitrate concentration in the upper Mississippi River basin, USA
John Karl Böhlke,Ronald C. Antweiler,Judson W. Harvey,Andrew E. Laursen,Lesley K. Smith,Richard L. Smith,Mary A. Voytek +6 more
TL;DR: In this article, the authors measured denitrification at multiple scales over a range of flow conditions and NO3====== − concentrations in streams draining agricultural land in the upper Mississippi River basin.
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The role of denitrification in nitrogen removal and carbon mineralization in Mid-Atlantic Bight sediments
TL;DR: In this paper, benthic chambers were used to measure in situ fluxes of dissolved gases (N2,O 2, and N2O) and inorganic nutrients (NO3,N H 4, and PO4� ) in continental shelf sediments of the Mid-Atlantic Bight during spring through autumn (May- November).
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Measurement of denitrification in rivers: an integrated, whole reach approach
TL;DR: In this paper, the authors developed a new approach for estimating denitrification in rivers at the whole reach scale and applied this approach to three small rivers, the Millstone River in central New Jersey, and the Iroquois River and Sugar Creek in northwest Indiana-northeast Illinois (USA).