Search Results - "SHERWOOD, Owen A"

Upward revision of global fossil fuel methane emissions based on isotope database by Schwietzke, Stefan, Sherwood, Owen A., Bruhwiler, Lori M. P., Miller, John B., Etiope, Giuseppe, Dlugokencky, Edward J., Michel, Sylvia Englund, Arling, Victoria A., Vaughn, Bruce H., White, James W. C., Tans, Pieter P.

“…Revisions in isotopic source signatures reveal that global total fossil fuel methane emissions from industry plus natural geological seepage are much larger…”
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Global Inventory of Gas Geochemistry Data from Fossil Fuel, Microbial and Burning Sources, version 2017 by Sherwood, Owen A, Schwietzke, Stefan, Arling, Victoria A, Etiope, Giuseppe

“…The concentration of atmospheric methane (CH4) has more than doubled over the industrial era. To help constrain global and regional CH4 budgets, inverse…”
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Millennial-scale plankton regime shifts in the subtropical North Pacific Ocean by McMahon, Kelton W., McCarthy, Matthew D., Sherwood, Owen A., Larsen, Thomas, Guilderson, Thomas P.

“…Climate change is predicted to alter marine phytoplankton communities and affect productivity, biogeochemistry, and the efficacy of the biological pump. We…”
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Increasing subtropical North Pacific Ocean nitrogen fixation since the Little Ice Age by Sherwood, Owen A., Guilderson, Thomas P., Batista, Fabian C., Schiff, John T., McCarthy, Matthew D.

“…Despite a reduction in nutrient supply to the North Pacific subtropical gyre, it has undergone a recent increase in nitrogen fixation, and here records of…”
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Local ecological knowledge and multidisciplinary approach lead to discovery of hidden biodiversity in the deep ocean of Labrador, Canada by Cote, David, Neves, Bárbara, Angnatok, Joey, Bartlett, Wilfred, Edinger, Evan, Gullage, Lauren, Laing, Rodd, Normandeau, Alexandre, Hayes, Vonda, Sherwood, Owen, Geoffroy, Maxime

“…International commitments to preserve global biodiversity target the protection of 30% of marine habitats by 2030. The lack of even basic knowledge of many…”
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Compound specific amino acid δ13C patterns in a deep-sea proteinaceous coral: Implications for reconstructing detailed δ13C records of exported primary production by Schiff, John T., Batista, Fabian C., Sherwood, Owen A., Guilderson, Thomas P., Hill, Tessa M., Ravelo, Ana C., McMahon, Kelton W., McCarthy, Matthew D.

“…Deep-sea proteinaceous corals represent high-resolution paleoarchives, extending biogeochemical time series far beyond recent instrumental data. While recent…”
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Geological features supporting deep-sea coral habitat in Atlantic Canada by Edinger, Evan N., Sherwood, Owen A., Piper, David J.W., Wareham, Vonda E., Baker, Krista D., Gilkinson, Kent D., Scott, David B.

“…Geological features supporting cold-water coral habitat in Atlantic Canada are reviewed and exemplified using qualitative field observations from the Scotian…”
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Surface Casing Pressure As an Indicator of Well Integrity Loss and Stray Gas Migration in the Wattenberg Field, Colorado by Lackey, Greg, Rajaram, Harihar, Sherwood, Owen A, Burke, Troy L, Ryan, Joseph N

“…The risk of environmental contamination by oil and gas wells depends strongly on the frequency with which they lose integrity. Wells with compromised integrity…”
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Public data from three US states provide new insights into well integrity by Lackey, Greg, Rajaram, Harihar, Bolander, James, Sherwood, Owen A., Ryan, Joseph N., Shih, Chung Yan, Bromhal, Grant S., Dilmore, Robert M.

“…Oil and gas wells with compromised integrity are a concern because they can potentially leak hydrocarbons or other fluids into groundwater and/or the…”
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Using global isotopic data to constrain the role of shale gas production in recent increases in atmospheric methane by Milkov, Alexei V., Schwietzke, Stefan, Allen, Grant, Sherwood, Owen A., Etiope, Giuseppe

“…The accelerated increase in global methane (CH 4 ) in the atmosphere, accompanied by a decrease in its 13 C/ 12 C isotopic ratio ( δ 13 C CH4 ) from −47.1‰ to…”
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Composition and Origin of Surface Casing Fluids in a Major US Oil- and Gas-Producing Region by Lackey, Greg, Pfander, Isabelle, Gardiner, James, Sherwood, Owen A., Rajaram, Harihar, Ryan, Joseph N., Dilmore, Robert M., Thomas, Burt

“…Fluids leaked from oil and gas wells often originate from their surface casinga steel pipe installed beneath the deepest underlying source of potable…”
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Groundwater methane in relation to oil and gas development and shallow coal seams in the Denver-Julesburg Basin of Colorado by Sherwood, Owen A., Rogers, Jessica D., Lackey, Greg, Burke, Troy L., Osborn, Stephen G., Ryan, Joseph N.

“…Unconventional oil and gas development has generated intense public concerns about potential impacts to groundwater quality. Specific pathways of contamination…”
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Assessing spatial impacts of historical pulp mill effluent on trophic dynamics in a coastal marine ecosystem using stable isotope (δ 13 C and δ 15 N) analysis by Fraser, Megan R, Walker, Tony R, Sherwood, Owen A, Oakes, Ken D

“…Boat Harbour, Nova Scotia was a tidal estuary that was converted into a wastewater treatment facility for pulp mill effluent in 1967. Treated effluent from…”
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Amino acid δ13C and δ15N patterns from sediment trap time series and deep-sea corals: Implications for biogeochemical and ecological reconstructions in paleoarchives by Shen, Yuan, Guilderson, Thomas P., Sherwood, Owen A., Castro, Carmen G., Chavez, Francisco P., McCarthy, Matthew D.

“…Recent work using compound-specific stable isotopes of amino acids (CSI-AA) in proteinaceous deep-sea corals opens a new realm of high-fidelity reconstruction…”
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Occurrence and origin of groundwater methane in the Stellarton Basin, Nova Scotia, Canada by Taylor, Kimberley A., Risk, David, Williams, James P., Wach, Grant D., Sherwood, Owen A.

“…Groundwater methane (CH4) in areas of fossil fuel development has been a recent focus of study as high CH4 concentrations pose water quality concerns and…”
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Microbial and Biogeochemical Indicators of Methane in Groundwater Aquifers of the Denver Basin, Colorado by Stanish, Lee F, Sherwood, Owen A, Lackey, Greg, Osborn, Stephen, Robertson, Charles E, Harris, J Kirk, Pace, Norman, Ryan, Joseph N

“…The presence of methane and other hydrocarbons in domestic-use groundwater aquifers poses significant environmental and human health concerns. Isotopic…”
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Nutrient regime shift in the western North Atlantic indicated by compound-specific δ¹⁵N of deep-sea gorgonian corals by Sherwood, Owen A, Lehmann, Moritz F, Schubert, Carsten J, Scott, David B, McCarthy, Matthew D

“…Despite the importance of the nitrogen (N) cycle on marine productivity, little is known about variability in N sources and cycling in the ocean in relation to…”
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Sea–air methane flux estimates derived from marine surface observations and instantaneous atmospheric measurements in the northern Labrador Sea and Baffin Bay by Vogt, Judith, Risk, David, Bourlon, Evelise, Azetsu-Scott, Kumiko, Edinger, Evan N, Sherwood, Owen A

“…Vast amounts of methane (CH4) stored in submarine sediments are susceptible to release in a warming Arctic, further exacerbating climate change in a positive…”
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Amino acid δ13C and δ15N fingerprinting of sea ice and pelagic algae in Canadian Arctic and Subarctic Seas by Chen, Shao-Min, Mudie, Peta, Sherwood, Owen A.

“…The on-going decline in Arctic sea ice represents a significant loss of habitat for sea ice algae, which are a major contributor to primary production in the…”
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Stable isotope ratios in seawater nitrate reflect the influence of Pacific water along the northwest Atlantic margin by Sherwood, Owen A, Davin, Samuel H, Lehmann, Nadine, Buchwald, Carolyn, Edinger, Evan N, Lehmann, Moritz F, Kienast, Markus

“…The flow of Pacific water to the North Atlantic exerts a globally significant control on nutrient balances between the two ocean basins and strongly influences…”
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