Search Results - "Ehn, Jens K"

Leads in Arctic pack ice enable early phytoplankton blooms below snow-covered sea ice by Assmy, Philipp, Fernández-Méndez, Mar, Duarte, Pedro, Meyer, Amelie, Randelhoff, Achim, Mundy, Christopher J., Olsen, Lasse M., Kauko, Hanna M., Bailey, Allison, Chierici, Melissa, Cohen, Lana, Doulgeris, Anthony P., Ehn, Jens K., Fransson, Agneta, Gerland, Sebastian, Hop, Haakon, Hudson, Stephen R., Hughes, Nick, Itkin, Polona, Johnsen, Geir, King, Jennifer A., Koch, Boris P., Koenig, Zoe, Kwasniewski, Slawomir, Laney, Samuel R., Nicolaus, Marcel, Pavlov, Alexey K., Polashenski, Christopher M., Provost, Christine, Rösel, Anja, Sandbu, Marthe, Spreen, Gunnar, Smedsrud, Lars H., Sundfjord, Arild, Taskjelle, Torbjørn, Tatarek, Agnieszka, Wiktor, Jozef, Wagner, Penelope M., Wold, Anette, Steen, Harald, Granskog, Mats A.

“…The Arctic icescape is rapidly transforming from a thicker multiyear ice cover to a thinner and largely seasonal first-year ice cover with significant…”
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Sea ice breakup and marine melt of a retreating tidewater outlet glacier in northeast Greenland (81°N) by Bendtsen, Jørgen, Mortensen, John, Lennert, Kunuk, K. Ehn, Jens, Boone, Wieter, Galindo, Virginie, Hu, Yu-bin, Dmitrenko, Igor A., Kirillov, Sergei A., Kjeldsen, Kristian K., Kristoffersen, Yngve, G. Barber, David, Rysgaard, Søren

“…Rising temperatures in the Arctic cause accelerated mass loss from the Greenland Ice Sheet and reduced sea ice cover. Tidewater outlet glaciers represent…”
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Floating ice-algal aggregates below melting arctic sea ice by Assmy, Philipp, Ehn, Jens K, Fernández-Méndez, Mar, Hop, Haakon, Katlein, Christian, Sundfjord, Arild, Bluhm, Katrin, Daase, Malin, Engel, Anja, Fransson, Agneta, Granskog, Mats A, Hudson, Stephen R, Kristiansen, Svein, Nicolaus, Marcel, Peeken, Ilka, Renner, Angelika H H, Spreen, Gunnar, Tatarek, Agnieszka, Wiktor, Jozef

“…During two consecutive cruises to the Eastern Central Arctic in late summer 2012, we observed floating algal aggregates in the melt-water layer below and…”
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Assessment of light absorption within highly scattering bottom sea ice from under-ice light measurements: Implications for Arctic ice algae primary production by Ehn, Jens K., Mundy, C. J.

“…Primary production estimates of ice algae within the bottommost layers of the Arctic ice cover are commonly derived using irradiance measurements taken…”
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Carbon dynamics in sea ice: A winter flux time series by Miller, Lisa A., Papakyriakou, Timothy N., Collins, R. Eric, Deming, Jody W., Ehn, Jens K., Macdonald, Robie W., Mucci, Alfonso, Owens, Owen, Raudsepp, Mati, Sutherland, Nes

“…A winter time series of the inorganic carbon system above, within, and beneath the landfast sea ice of the southern Beaufort Sea confirmed that sea ice is an…”
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Patterns of suspended particulate matter across the continental margin in the Canadian Beaufort Sea during summer by Ehn, Jens K, Reynolds, Rick A, Stramski, Dariusz, Doxaran, David, Lansard, Bruno, Babin, Marcel

“…The particulate beam attenuation coefficient at 660 nm, cp(660), was measured in conjunction with properties of suspended particle assemblages in August 2009…”
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Impact of horizontal spreading on light propagation in melt pond covered seasonal sea ice in the Canadian Arctic by Ehn, Jens K., Mundy, C. J., Barber, David G., Hop, Haakon, Rossnagel, Andrea, Stewart, Jeremy

“…Melt pond covered sea ice is a ubiquitous feature of the summertime Arctic Ocean when meltwater collects in lower‐lying areas of ice surfaces. Horizontal…”
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Higher-order statistical moments to analyse Arctic sea-ice drift patterns by Kaur, Satwant, Lukovich, Jennifer V., Ehn, Jens K., Barber, David G.

“…Geophysical systems are often assumed to follow Gaussian probability density functions; however, deviations from Gaussian behaviour can shed light on the…”
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Impact of sea ice on the retrieval of water-leaving reflectance, chlorophyll a concentration and inherent optical properties from satellite ocean color data by Bélanger, Simon, Ehn, Jens K., Babin, Marcel

“…Two physical phenomena by which satellite remotely sensed ocean color data are contaminated by sea ice at high latitudes are described through simulations and…”
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Characteristics of two distinct high-light acclimated algal communities during advanced stages of sea ice melt by Mundy, C. J., Gosselin, Michel, Ehn, Jens K., Belzile, Claude, Poulin, Michel, Alou, Eva, Roy, Suzanne, Hop, Haakon, Lessard, Sylvie, Papakyriakou, Tim N., Barber, David G., Stewart, Jeremy

“…Biological characteristics of ice-associated algal communities were studied in Darnley Bay (western Canadian Arctic) during a 2-week period in July 2008 when…”
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Impact of tidal dynamics on diel vertical migration of zooplankton in Hudson Bay by Petrusevich, Vladislav Y, Dmitrenko, Igor A, Niemi, Andrea, Kirillov, Sergey A, Kamula, Christina Michelle, Kuzyk, Zou Zou A, Barber, David G, Ehn, Jens K

“…Hudson Bay is a large seasonally ice-covered Canadian inland sea connected to the Arctic Ocean and North Atlantic through Foxe Basin and Hudson Strait. This…”
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Algal Hot Spots in a Changing Arctic Ocean: Sea-Ice Ridges and the Snow-Ice Interface by Fernández-Méndez, Mar, Olsen, Lasse M., Kauko, Hanna M., Meyer, Amelie, Rösel, Anja, Merkouriadi, Ioanna, Mundy, Christopher J., Ehn, Jens K., Johansson, A. Malin, Wagner, Penelope M., Ervik, Åse, Sorrell, Brian K., Duarte, Pedro, Wold, Anette, Hop, Haakon, Assmy, Philipp

“…During the N-ICE2015 drift expedition north-west of Svalbard, we observed the establishment and development of algal communities in first-year ice (FYI) ridges…”
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Terrestrial Snowmelt as a Precursor to Landfast Sea Ice Break-up in Hudson Bay and James Bay by Gupta, Kaushik, Ehn, Jens K.

“…Numerous studies have been conducted to enhance our understanding of how climate change impacts landfast ice and its break-up in spring or summer. Yet,…”
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Bio-optical and structural properties inferred from irradiance measurements within the bottommost layers in an Arctic landfast sea ice cover by Ehn, Jens K., Mundy, C. J., Barber, David G.

“…Irradiance spectra were measured at vertical increments within the bottommost layers of landfast sea ice with the aid of divers in Franklin Bay, Canada, in an…”
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Spatial and temporal variation of photosynthetic parameters in natural phytoplankton assemblages in the Beaufort Sea, Canadian Arctic by Palmer, Molly A., Arrigo, Kevin R., Mundy, C. J., Ehn, Jens K., Gosselin, Michel, Barber, David G., Martin, Johannie, Alou, Eva, Roy, Suzanne, Tremblay, Jean-Éric

“…During summer 2008, as part of the Circumpolar Flaw Lead system study, we measured phytoplankton photosynthetic parameters to understand regional patterns in…”
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Investigations of newly formed sea ice in the Cape Bathurst polynya: 2. Microwave emission by Hwang, Byong Jun, Ehn, Jens K., Barber, David G., Galley, Ryan, Grenfell, Thomas C.

“…This study examines the role of newly formed sea ice geophysical state on microwave emission. Coincident with sea ice geophysical sampling, ship‐based passive…”
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Investigations of newly formed sea ice in the Cape Bathurst polynya: 1. Structural, physical, and optical properties by Ehn, Jens K., Hwang, Byong Jun, Galley, Ryan, Barber, David G.

“…The physical, structural, and optical properties of newly formed ice types were studied in the Cape Bathurst polynya (71°N, 127°W) during fall freezeup in…”
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Variability of the Pacific‐Derived Arctic Water Over the Southeastern Wandel Sea Shelf (Northeast Greenland) in 2015–2016 by Dmitrenko, Igor A., Kirillov, Sergei A., Rudels, Bert, Babb, David G., Myers, Paul G., Stedmon, Colin A., Bendtsen, Jørgen, Ehn, Jens K., Pedersen, Leif Toudal, Rysgaard, Søren, Barber, David G.

“…A portion of the freshwater transport through Fram Strait consists of low‐salinity Pacific‐derived Arctic water flowing southward along the east coast of…”
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Sea ice thickness in the Eastern Canadian Arctic: Hudson Bay Complex & Baffin Bay by Landy, Jack C., Ehn, Jens K., Babb, David G., Thériault, Nathalie, Barber, David G.

“…Past observations of sea ice thickness in the Eastern Canadian Arctic (ECA) have generally been restricted to drill-hole measurements at a few local sites on…”
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Massive Phytoplankton Blooms Under Arctic Sea Ice by Arrigo, Kevin R., Perovich, Donald K., Pickart, Robert S., Brown, Zachary W., van Dijken, Gert L., Lowry, Kate E., Mills, Matthew M., Palmer, Molly A., Balch, William M., Bahr, Frank, Bates, Nicholas R., Benitez-Nelson, Claudia, Bowler, Bruce, Brownlee, Emily, Ehn, Jens K., Frey, Karen E., Garley, Rebecca, Laney, Samuel R., Lubelczyk, Laura, Mathis, Jeremy, Matsuoka, Atsushi, Mitchell, B. Greg, Moore, G. W. K., Ortega-Retuerta, Eva, Pal, Sharmila, Polashenski, Chris M., Reynolds, Rick A., Schieber, Brian, Sosik, Heidi M., Stephens, Michael, Swift, James H.

“…Phytoplankton blooms over Arctic Ocean continental shelves are thought to be restricted to waters free of sea ice. Here, we document a massive phytoplankton…”
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