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Causes of variability in light absorption by particles in snow at sites in Idaho and Utah
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  • Personal Author:
  • Description:
    A characterization of black carbon (BC) and other light-absorbing particles in snow is presented for three mountain valley sites in Idaho in early 2014 and for one site near Vernal, Utah, in early 2013 and 2014. The focus of the study was on constraining the magnitude and drivers of variations in particulate absorbers in midlatitude U.S. seasonal snow. Mass mixing ratios of BC in newly fallen snow were similar at all three Idaho sites, with a median of 4.7 +/- 4.2 ng BC per gram of snow. The median total light-absorbing particulate mixing ratios in new snow, expressed as an equivalent mixing ratio of BC, was 18 +/- 23 ng g(-1). At the Utah site, which is near sources of both fossil fuel and dust, the mixing ratios of BC varied from 7 to 45 ng g(-1) across seven new snowfall samples, and the BC-equivalent mixing ratios varied from 9 to 1500 ng g(-1). At all sites, dry deposition and in snow processes increase the mixing ratio of BC by up to an order of magnitude and increase the mixing ratio of all light-absorbing particulates by up to 2 orders of magnitude, highlighting the importance of capturing these processes for accurately representing snow albedo in climate models. Spatial variability at a range of scales is found to be considerably smaller than the temporal variations at a given site, with implications for the representativeness of field samples used in observation/model comparisons.

  • Document Type:
    Journal Article
  • Funding:
    Grant No: NA10OAR4320148
  • Collection(s):
    Office of Oceanic and Atmospheric Research (OAR)
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      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
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      Tidal oscillations of venting temperature and chlorinity have been observed in the long-term time series data recorded by the Benthic and Resistivity Sensors (BARS) at the Grotto mound on the Juan de Fuca Ridge. In this study, we use a one-dimensiona...
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      2017
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      Marine Geophysical Research, 38(1-2), 3-16.
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      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
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      Seafloor hydrothermal polymetallic sulfide deposits are a new type of resource, with great potential economic value and good prospect development. This paper discusses turbidity, oxidation-reduction potential, and temperature anomalies of hydrotherma...
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      Global Biogeochemical Cycles, 31(3), 591-604.
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      Scientific Reports, 6, 25686.
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      Limnology and Oceanography-Methods, 14(4), 268-277.
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    9. A model-based examination of multivariate physical modes in the Gulf of Alaska
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      Hermann, A. J.; Ladd, C.; Cheng, W.; Curchitser, E. N.; Hedstrom, K.;
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      2016
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      Deep-Sea Research Part Ii-Topical Studies in Oceanography, 132, 68-89.
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      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      We use multivariate output from a hydrodynamic model of the Gulf of Alaska (GOA) to explore the covariance among its physical state and air/sea fluxes. We attempt to summarize this coupled variability using a limited set of patterns, and examine thei...
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    10. Southeast Alaskan shelf from southern tip of Baranof Island to Kayak Island: Currents, mixing and chlorophyll-a
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      Stabeno, P. J.; Bond, N. A.; Kachel, N. B.; Ladd, C.; Mordy, C. W.; Strom, S. L.;
      Published Date:
      2016
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      Deep-Sea Research Part Ii-Topical Studies in Oceanography, 132, 6-23.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      During 2011 and 2013, an integrated,ecosystem study was undertaken on the Southeast Alaska shelf and slope. As part of that study, a total of 8 moorings were deployed each year along the coast of Baranof and Chichagof Islands, in Cross Sound and at I...
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      Lin, T. J.; Ver Eecke, H. C.; Breves, E. A.; Dyar, M. D.; Jamieson, J. W.; Hannington, M. D.; Dahle, H.; Bishop, J. L.; Lane, M. D.; Butterfield, D. A.; Kelley, D. S.; Lilley, M. D.; Baross, J. A.; Holden, J. F.;
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      2016
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      Geochemistry Geophysics Geosystems, 17(2), 300-323.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      Rock and fluid samples were collected from three hydrothermal chimneys at the Endeavour Segment, Juan de Fuca Ridge to evaluate linkages among mineralogy, fluid chemistry, and microbial community composition within the chimneys. Mossbauer, midinfrare...
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    12. Estimating Total Alkalinity in the Washington State Coastal Zone: Complexities and Surprising Utility for Ocean Acidification Research
      Personal Author:
      Fassbender, A. J.; Alin, S. R.; Feely, R. A.; Sutton, A. J.; Newton, J. A.; Byrne, R. H.;
      Published Date:
      2017
      Source:
      Estuaries and Coasts, 40(2), 404-418.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      Evidence of ocean acidification (OA) throughout the global ocean has galvanized some coastal communities to evaluate carbonate chemistry variations closer to home. An impediment to doing this effectively is that, often, only one carbonate system para...
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      Filetype[PDF - 2.63 MB]
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      Zhang, D. X.; Cronin, M. F.; Wen, C. H.; Xue, Y.; Kumar, A.; McClurg, D.;
      Published Date:
      2016
      Source:
      Journal of Geophysical Research-Oceans, 121(9), 6874-6890.
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      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      Previous studies have found large biases and uncertainties in the air-sea fluxes from Numerical Weather Prediction model reanalyses, which must be identified and reduced in order to make progress on weather and climate predictions. Here air-sea heat ...
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    14. Gap winds and their effects on regional oceanography Part II: Kodiak Island, Alaska
      Personal Author:
      Ladd, C.; Cheng, W.; Salo, S.;
      Published Date:
      2016
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      Deep-Sea Research Part Ii-Topical Studies in Oceanography, 132, 54-67.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      Frequent gap winds, defined here as offshore-directed flow channeled through mountain gaps, have been observed near Kodiak Island in the Gulf of Alaska (GOA). Gap winds from the Iliamna Lake gap were investigated using QuikSCAT wind data. The influen...
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    15. Empirical algorithms to estimate water column pH in the Southern Ocean
      Personal Author:
      Williams, N. L.; Juranek, L. W.; Johnson, K. S.; Feely, R. A.; Riser, S. C.; Talley, L. D.; Russell, J. L.; Sarmiento, J. L.; Wanninkhof, R.;
      Published Date:
      2016
      Source:
      Geophysical Research Letters, 43(7), 3415-3422.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      Empirical algorithms are developed using high-quality GO-SHIP hydrographic measurements of commonly measured parameters (temperature, salinity, pressure, nitrate, and oxygen) that estimate pH in the Pacific sector of the Southern Ocean. The coefficie...
      File Type:
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    16. Hydrogen Limitation and Syntrophic Growth among Natural Assemblages of Thermophilic Methanogens at Deep-sea Hydrothermal Vents
      Personal Author:
      Topcuoglu, B. D.; Stewart, L. C.; Morrison, H. G.; Butterfield, D. A.; Huber, J. A.; Holden, J. F.;
      Published Date:
      2016
      Source:
      Frontiers in Microbiology, 7, 12.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      Thermophilic methanogens are common autotrophs at hydrothermal vents, but their growth constraints and dependence on H-2 syntrophy in situ are poorly understood. Between 2012 and 2015, methanogens and H2-producing heterotrophs were detected by growth...
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    17. Shipping-Container Impact Assessment for Tsunamis
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      Naito, C.; Riggs, H. R.; Wei, Y.; Cercone, C.;
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      2016
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      Journal of Waterway Port Coastal and Ocean Engineering, 142(5), 16.
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      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      During tsunami inundation, coastal structures are subject to hydrostatic and hydrodynamic forces from the run-up and rundown and to impact forces from floating debris that is picked up by the flow. A new chapter in the upcoming revised U.S. design lo...
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    18. Coupled ocean-atmosphere loss of marine refractory dissolved organic carbon
      Personal Author:
      Kieber, D. J.; Keene, W. C.; Frossard, A. A.; Long, M. S.; Maben, J. R.; Russell, L. M.; Kinsey, J. D.; Tyssebotn, I. M. B.; Quinn, P. K.; Bates, T. S.;
      Published Date:
      2016
      Source:
      Geophysical Research Letters, 43(6), 2765-2772.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      The oceans hold a massive quantity of organic carbon, nearly all of which is dissolved and more than 95% is refractory, cycling through the oceans several times before complete removal. The vast reservoir of refractory dissolved organic carbon (RDOC)...
      File Type:
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    19. Recent Extreme Arctic Temperatures are due to a Split Polar Vortex
      Personal Author:
      Overland, J. E.; Wang, M. Y.;
      Published Date:
      2016
      Source:
      Journal of Climate, 29(15), 5609-5616.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      There were extensive regions of Arctic temperature extremes in January and February 2016 that continued into April. For January, the Arctic-wide averaged temperature anomaly was 2.0 degrees C above the previous record of 3.0 degrees C based on four r...
      File Type:
      Filetype[PDF - 2.67 MB]
    20. Using present-day observations to detect when anthropogenic change forces surface ocean carbonate chemistry outside preindustrial bounds
      Personal Author:
      Sutton, A. J.; Sabine, C. L.; Feely, R. A.; Cai, W. J.; Cronin, M. F.; McPhaden, M. J.; Morell, J. M.; Newton, J. A.; Noh, J. H.; Olafsdottir, S. R.; Salisbury, J. E.; Send, U.; Vandemark, D. C.; Weller, R. A.;
      Published Date:
      2016
      Source:
      Biogeosciences, 13(17), 5065-5083.
      Series:
      JISAO (Joint Institute for the Study of the Atmosphere and Ocean)
      Description:
      One of the major challenges to assessing the impact of ocean acidification on marine life is detecting and interpreting long-term change in the context of natural variability. This study addresses this need through a global synthesis of monthly pH an...
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