Search Results - "McDonnell, Andrew M. P."

Impact of a warm anomaly in the Pacific Arctic region derived from time-series export fluxes by Lalande, Catherine, Grebmeier, Jacqueline M, McDonnell, Andrew M P, Hopcroft, Russell R, O'Daly, Stephanie, Danielson, Seth L

“…Unusually warm conditions recently observed in the Pacific Arctic region included a dramatic loss of sea ice cover and an enhanced inflow of warmer…”
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Variability in the average sinking velocity of marine particles by McDonnell, Andrew M. P., Buesseler, Ken O.

“…We used a new combination of sampling techniques involving in situ imaging of particles in the water column and the collection of particle flux in viscous…”
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Wind-driven mixing causes a reduction in the strength of the continental shelf carbon pump in the Chukchi Sea by Hauri, Claudine, Winsor, Peter, Juranek, Laurie W., McDonnell, Andrew M. P., Takahashi, Taro, Mathis, Jeremy T.

“…The Chukchi Sea is thought to be a globally important sink of atmospheric CO2 due to the summertime drawdown of surface pCO2 by phytoplankton and subsequent…”
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High particle export over the continental shelf of the west Antarctic Peninsula by Buesseler, Ken O., McDonnell, Andrew M. P., Schofield, Oscar M. E., Steinberg, Deborah K., Ducklow, Hugh W.

“…Drifting cylindrical traps and the flux proxy 234Th indicate more than an order of magnitude higher sinking fluxes of particulate carbon and 234Th in January…”
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The Role of Particle Size, Ballast, Temperature, and Oxygen in the Sinking Flux to the Deep Sea by Cram, Jacob A., Weber, Thomas, Leung, Shirley W., McDonnell, Andrew M. P., Liang, Jun‐Hong, Deutsch, Curtis

“…The “transfer efficiency” of organic particles from the surface to depth is a critical determinant of ocean carbon sequestration. Recently, direct observations…”
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Sinking Organic Particles in the Ocean—Flux Estimates From in situ Optical Devices by Giering, Sarah Lou Carolin, Cavan, Emma Louise, Basedow, Sünnje Linnéa, Briggs, Nathan, Burd, Adrian B., Darroch, Louise J., Guidi, Lionel, Irisson, Jean-Olivier, Iversen, Morten H., Kiko, Rainer, Lindsay, Dhugal, Marcolin, Catarina R., McDonnell, Andrew M. P., Möller, Klas Ove, Passow, Uta, Thomalla, Sandy, Trull, Thomas William, Waite, Anya M.

“…Optical particle measurements are emerging as an important technique for understanding the ocean carbon cycle, including contributions to estimates of their…”
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Expanding seawater carbon dioxide and methane measuring capabilities with a Seaglider by Hauri, Claudine, Irving, Brita, Hayes, Dan, Abdi, Ehsan, Kemme, Jöran, Kinski, Nadja, McDonnell, Andrew M. P

“…Warming, ocean acidification, and deoxygenation are increasingly putting pressure on marine ecosystems. At the same time, thawing permafrost and decomposing…”
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Global Distribution of Zooplankton Biomass Estimated by In Situ Imaging and Machine Learning by Drago, Laetitia, Panaïotis, Thelma, Irisson, Jean-Olivier, Babin, Marcel, Biard, Tristan, Carlotti, François, Coppola, Laurent, Guidi, Lionel, Hauss, Helena, Karp-Boss, Lee, Lombard, Fabien, McDonnell, Andrew M. P., Picheral, Marc, Rogge, Andreas, Waite, Anya M., Stemmann, Lars, Kiko, Rainer

“…Zooplankton plays a major role in ocean food webs and biogeochemical cycles, and provides major ecosystem services as a main driver of the biological carbon…”
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Modulation of ocean acidification by decadal climate variability in the Gulf of Alaska by Hauri, Claudine, Pagès, Rémi, McDonnell, Andrew M. P., Stuecker, Malte F., Danielson, Seth L., Hedstrom, Katherine, Irving, Brita, Schultz, Cristina, Doney, Scott C.

“…Abstract Uptake of anthropogenic carbon dioxide from the atmosphere by the surface ocean is leading to global ocean acidification, but regional variations in…”
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Extraordinary Carbon Fluxes on the Shallow Pacific Arctic Shelf During a Remarkably Warm and Low Sea Ice Period by O’Daly, Stephanie H., Danielson, Seth L., Hardy, Sarah M., Hopcroft, Russell R., Lalande, Catherine, Stockwell, Dean A., McDonnell, Andrew M. P.

“…The shallow Pacific Arctic shelf has historically acted as an effective carbon sink, characterized by tight benthic pelagic coupling. However, the strength of…”
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From sea ice to seals: a moored marine ecosystem observatory in the Arctic by Hauri, Claudine, Danielson, Seth, McDonnell, Andrew M. P, Hopcroft, Russell R, Winsor, Peter, Shipton, Peter, Lalande, Catherine, Stafford, Kathleen M, Horne, John K, Cooper, Lee W, Grebmeier, Jacqueline M, Mahoney, Andrew, Maisch, Klara, McCammon, Molly, Statscewich, Hank, Sybrandy, Andy, Weingartner, Thomas

“…Although Arctic marine ecosystems are changing rapidly, year-round monitoring is currently very limited and presents multiple challenges unique to this region…”
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Publisher Correction: Modulation of ocean acidification by decadal climate variability in the Gulf of Alaska by Hauri, Claudine, Pagès, Rémi, McDonnell, Andrew M. P., Stuecker, Malte F., Danielson, Seth L., Hedstrom, Katherine, Irving, Brita, Schultz, Cristina, Doney, Scott C.

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A new method for the estimation of sinking particle fluxes from measurements of the particle size distribution, average sinking velocity, and carbon content by McDonnell, Andrew M. P., Buesseler, Ken O.

“…We describe a new method for estimating sinking particulate carbon fluxes at high spatial and temporal resolutions from measurements of the particle…”
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The Outsized Role of Salps in Carbon Export in the Subarctic Northeast Pacific Ocean by Steinberg, Deborah K., Stamieszkin, Karen, Maas, Amy E., Durkin, Colleen A., Passow, Uta, Estapa, Margaret L., Omand, Melissa M., McDonnell, Andrew M. P., Karp‐Boss, Lee, Galbraith, Moira, Siegel, David A.

“…Periodic blooms of salps (pelagic tunicates) can result in high export of organic matter, leading to an “outsized” role in the ocean's biological carbon pump…”
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Slow Particle Remineralization, Rather Than Suppressed Disaggregation, Drives Efficient Flux Transfer Through the Eastern Tropical North Pacific Oxygen Deficient Zone by Cram, Jacob A., Fuchsman, Clara A., Duffy, Megan E., Pretty, Jessica L., Lekanoff, Rachel M., Neibauer, Jacquelyn A., Leung, Shirley W., Huebert, Klaus B., Weber, Thomas S., Bianchi, Daniele, Evans, Natalya, Devol, Allan H., Keil, Richard G., McDonnell, Andrew M. P.

“…Models and observations suggest that particle flux attenuation is lower across the mesopelagic zone of anoxic environments compared to oxic environments. Flux…”
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The oceanographic toolbox for the collection of sinking and suspended marine particles by McDonnell, Andrew M.P., Lam, Phoebe J., Lamborg, Carl H., Buesseler, Ken O., Sanders, Richard, Riley, Jennifer S., Marsay, Chris, Smith, Helen E.K., Sargent, Elizabeth C., Lampitt, Richard S., Bishop, James K.B.

“…•Reviews particle collection techniques with focus on GEOTRACES-relevant methods.•Collection methods for sinking and suspended particles…”
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Strong and efficient summertime carbon export driven by aggregation processes in a subarctic coastal ecosystem by O'Daly, Stephanie H., Hennon, Gwenn M. M., Kelly, Thomas B., Strom, Suzanne L., McDonnell, Andrew M. P.

“…Sinking marine particles, one pathway of the biological carbon pump, transports carbon to the deep ocean from the surface, thereby modulating atmospheric…”
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Three major mesoplanktonic communities resolved by in situ imaging in the upper 500m of the global ocean by Panaïotis, Thelma, Babin, Marcel, Biard, Tristan, Carlotti, François, Coppola, Laurent, Guidi, Lionel, Hauss, Helena, Lee Karp‐Boss, Kiko, Rainer, Lombard, Fabien, McDonnell, Andrew M P, Picheral, Marc, Rogge, Andreas, Waite, Anya M, Stemmann, Lars, Jean‐Olivier Irisson

“…AimThe distribution of mesoplankton communities has been poorly studied at global scale, especially from in situ instruments. This study aims to (1) describe…”
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Marine particles in the Gulf of Alaska shelf system: Spatial patterns and size distributions from in situ optics by Turner, Jessica S., Pretty, Jessica L., McDonnell, Andrew M.P.

“…The Gulf of Alaska is a biologically productive ocean region surrounded by coastal mountains with high seasonal runoff from rivers and glaciers. In this…”
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Three major mesoplanktonic communities resolved by in situ imaging in the upper 500 m of the global ocean by Panaïotis, Thelma, Babin, Marcel, Biard, Tristan, Carlotti, François, Coppola, Laurent, Guidi, Lionel, Hauss, Helena, Karp‐Boss, Lee, Kiko, Rainer, Lombard, Fabien, McDonnell, Andrew M. P., Picheral, Marc, Rogge, Andreas, Waite, Anya M., Stemmann, Lars, Irisson, Jean‐Olivier

“…Abstract Aim The distribution of mesoplankton communities has been poorly studied at global scale, especially from in situ instruments. This study aims to (1)…”
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