Showing 101 - 120 results of 293 for search '"Beaufort Sea"', query time: 0.15s Refine Results
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    Assessment of Empirical and Semi-Analytical Algorithms Using MODIS-Aqua for Representing In-Situ Chromophoric Dissolved Organic Matter (CDOM) in the Bering, Chukchi, and Western Beaufort Seas of the Pacific Arctic Region by Melishia I. Santiago, Karen E. Frey

    Published 2021-09-01
    “…We analyzed a variety of satellite-based ocean color products derived using MODIS-Aqua to investigate the most accurate empirical and semi-analytical algorithms for representing in-situ chromophoric dissolved organic matter (CDOM) across a large latitudinal transect in the Bering, Chukchi, and western Beaufort Seas of the Pacific Arctic region. In particular, we compared the performance of empirical (CDOM index) and several semi-analytical algorithms (quasi-analytical algorithm (QAA), Carder, Garver-Siegel-Maritorena (GSM), and GSM-A) with field measurements of CDOM absorption (<i>a</i><sub>CDOM</sub>) at 412 nanometers (nm) and 443 nm. …”
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    Estimating absorption coefficients of colored dissolved organic matter (CDOM) using a semi-analytical algorithm for southern Beaufort Sea waters: application to deriving concentrations of dissolved organic carbon from space by A. Matsuoka, S. B. Hooker, A. Bricaud, B. Gentili, M. Babin

    Published 2013-02-01
    “…In this study, a semi-analytical algorithm for estimating light absorption coefficients of the colored fraction of DOM (CDOM) was developed for southern Beaufort Sea waters using remote sensing reflectance at six wavelengths in the visible spectral domain corresponding to MODIS ocean color sensor. …”
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    Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities by Lauren Sutton, Franz J. Mueter, Bodil A. Bluhm, Katrin Iken

    Published 2021-11-01
    “…Functional composition in the Chukchi Sea was more strongly correlated with environmental gradients compared to the Beaufort Sea, as shown by a combination of RLQ and fourth corner analyses and community-weighted mean redundancy analyses. …”
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  13. 113

    Two Configurations of the Western Arctic Shelfbreak Current in Summer by Von Appen, Wilken-Jon, Pickart, Robert S.

    Published 2012
    “…Data from a closely spaced array of moorings situated across the Beaufort Sea shelfbreak at 152°W are used to study the Western Arctic Shelfbreak Current, with emphasis on its configuration during the summer season. …”
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  14. 114

    The seasonal phases of an Arctic lagoon reveal the discontinuities of pH variability and CO<sub>2</sub> flux at the air–sea interface by C. A. Miller, C. A. Miller, C. Bonsell, N. D. McTigue, A. L. Kelley

    Published 2021-02-01
    “…This approach has failed to capture year-round nearshore carbonate chemistry dynamics which is modulated by biological metabolism in response to abundant allochthonous organic matter to the narrow shelf of the Beaufort Sea and adjacent regions. The coastline of the Beaufort Sea comprises a series of lagoons that account for <span class="inline-formula">&gt;</span> 50 % of the land–sea interface. …”
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  15. 115

    Are polar bear habitat resource selection functions developed from 1985–1995 data still useful? by George M. Durner, David C. Douglas, Todd C. Atwood

    Published 2019-08-01
    “…The distribution of Southern Beaufort Sea polar bears remained similar during the ice maximum season, so the reference RSFs developed from data collected >20 years ago continue to accurately model their winter distribution. …”
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  16. 116

    Upper Arctic Ocean water masses harbor distinct communities of heterotrophic flagellates by A. Monier, R. Terrado, M. Thaler, A. Comeau, E. Medrinal, C. Lovejoy

    Published 2013-06-01
    “…We used high-throughput DNA sequencing techniques as a rapid means of surveying the diversity of HFL communities in the southern Beaufort Sea (Canada), targeting the surface, the subsurface chlorophyll maximum layer (SCM) and just below the SCM. …”
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  17. 117

    An Embedded Tactical Decision Aid Framework for Environmentally Adaptive Autonomous Underwater Vehicle Communication and Navigation by Bhatt, EeShan C., Howard, Bradli, Schmidt, Henrik

    Published 2024
    “…Motivated by a changing acoustic environment in the Arctic Beaufort Sea, in this article, we present a tactical decision aid framework for a human decision-maker collaborating with an autonomous underwater vehicle (AUV) to integrate the vertical sound-speed profile for underwater navigation and communication. …”
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  18. 118

    High winds and melting sea ice trigger landward movement in a polar bear population of concern by Annie Kellner, Todd C. Atwood, David C. Douglas, Stewart W. Breck, George Wittemyer

    Published 2023-02-01
    “…Polar bears (Ursus maritimus) from the southern Beaufort Sea subpopulation have mostly remained on ice year‐round, but as the climate warms and summer sea ice declines, a growing proportion of the subpopulation is summering ashore. …”
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  19. 119

    Benchmark seasonal prediction skill estimates based on regional indices by J. E. Walsh, J. S. Stewart, F. Fetterer

    Published 2019-04-01
    “…In this study we use observational data to evaluate the contribution of the trend to the skill of persistence-based statistical forecasts of monthly and seasonal ice extent on the pan-Arctic and regional scales. We focus on the Beaufort Sea for which the Barnett Severity Index provides a metric of historical variations in ice conditions over the summer shipping season. …”
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    Temporal and spatial variability in sea-ice carbon:nitrogen ratios on Canadian Arctic shelves by Andrea Niemi, Christine Michel

    Published 2015-12-01
    “…Abstract To enhance the accuracy of carbon cycling models as applied to sea ice in the changing Arctic, we analyzed a large data set of particulate organic carbon (POC) and nitrogen (PON) measurements in first-year bottom sea ice (n = 257) from two Arctic shelves, the Canadian Arctic Archipelago and Beaufort Sea shelf, including dark winter and spring seasonal measurements. …”
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