Now showing items 5307-5326 of 7061

  • Rapid and gradual modes of aerosol trace metal dissolution in seawater 

    Mackey, Katherine R. M.; Chien, Chia-Te; Post, Anton F.; Saito, Mak A.; Paytan, Adina (Frontiers Media, 2015-01-21)
    Atmospheric deposition is a major source of trace metals in marine surface waters and supplies vital micronutrients to phytoplankton, yet measured aerosol trace metal solubility values are operationally defined, and there ...
  • Rapid change in freshwater content of the Arctic Ocean 

    McPhee, M. G.; Proshutinsky, Andrey; Morison, James H.; Steele, Michael; Alkire, M. B. (American Geophysical Union, 2009-05-21)
    The dramatic reduction in minimum Arctic sea ice extent in recent years has been accompanied by surprising changes in the thermohaline structure of the Arctic Ocean, with potentially important impact on convection in the ...
  • Rapid circulation of warm subtropical waters in a major glacial fjord in East Greenland 

    Straneo, Fiamma; Hamilton, Gordon S.; Sutherland, David A.; Stearns, Leigh A.; Davidson, Fraser J. M.; Hammill, Mike O.; Stenson, Garry B.; Rosing-Asvid, Aqqalu (2009-12-17)
    The recent rapid increase in mass loss from the Greenland Ice Sheet is primarily attributed to an acceleration of outlet glaciers. One possible cause is increased melting at the ice/ocean interface driven by the synchronous ...
  • Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean 

    Thomas, Helmuth; Prowe, A. E. Friederike; van Heuven, Steven; Bozec, Yann; Baar, Hein J. W. de; Schiettecatte, Laure-Sophie; Suykens, Kim; Kone, Mathieu; Borges, Alberto V.; Lima, Ivan D.; Doney, Scott C. (American Geophysical Union, 2007-10-06)
    New observations from the North Sea, a NW European shelf sea, show that between 2001 and 2005 the CO2 partial pressure (pCO2) in surface waters rose by 22 μatm, thus faster than atmospheric pCO2, which in the same period ...
  • Rapid dispersal of a hydrothermal plume by turbulent mixing 

    Walter, Maren; Mertens, Christian; Stober, Uwe; German, Christopher R.; Yoerger, Dana R.; Sultenfuß, Jurgen; Rhein, Monika; Melchert, Bernd; Baker, Edward T. (2010-08-23)
    The water column imprint of the hydrothermal plume observed at the Nibelungen field (8°18' S 13°30' W) is highly variable in space and time. The off-axis location of the site, along the southern boundary of a non-transform ...
  • Rapid early Holocene deglaciation of the Laurentide ice sheet 

    Carlson, Anders E.; LeGrande, Allegra N.; Oppo, Delia W.; Came, Rosemarie E.; Schmidt, Gavin A.; Anslow, Faron S.; Licciardi, Joseph M.; Obbink, Elizabeth A. (2008-07-24)
    The early Holocene deglaciation of the Laurentide Ice Sheet (LIS) is the most recent and best constrained disappearance of a large Northern Hemisphere ice sheet. Its demise is a natural experiment for assessing rates of ...
  • Rapid extraction of dissolved inorganic carbon from seawater and groundwater samples for radiocarbon dating 

    Gospodinova, Kalina D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2012-06)
    The focus of this thesis is the design and development of a system for rapid extraction of dissolved inorganic carbon from seawater and groundwater samples for radiocarbon dating. The Rapid Extraction of Dissolved Inorganic ...
  • Rapid generation of upwelling at a shelf break caused by buoyancy shutdown 

    Benthuysen, Jessica A.; Thomas, Leif N.; Lentz, Steven J. (American Meteorological Society, 2015-01)
    Model analyses of an alongshelf flow over a continental shelf and slope reveal upwelling near the shelf break. A stratified, initially uniform, alongshelf flow undergoes a rapid adjustment with notable differences onshore ...
  • Rapid helium isotopic variability in Mauna Kea shield lavas from the Hawaiian Scientific Drilling Project 

    Kurz, Mark D.; Curtice, Joshua; Lott, Dempsey E.; Solow, Andrew R. (American Geophysical Union, 2004-04-21)
    This paper presents new magmatic helium isotopic compositions in a suite of lavas from phase II of the Hawaiian Scientific Drilling Project (HSDP2) core, which sampled Mauna Kea volcano to a maximum depth of 3098 m below ...
  • Rapid lateral particle transport in the Argentine Basin : molecular C-14 and Th-230(xs) evidence 

    Mollenhauer, Gesine; McManus, Jerry F.; Benthien, Albert; Muller, Peter J.; Eglinton, Timothy I. (2006-05-06)
    Recent studies have revealed that lateral transport and focusing of particles strongly influences the depositional patterns of organic matter in marine sediments. Transport can occur in the water column prior to initial ...
  • Rapid mixed layer depening by the combination of Langmuir and shear instabilities : a case study 

    Kukulka, Tobias; Plueddemann, Albert J.; Trowbridge, John H.; Sullivan, Peter P. (American Meteorological Society, 2010-11)
    Langmuir circulation (LC) is a turbulent upper-ocean process driven by wind and surface waves that contributes significantly to the transport of momentum, heat, and mass in the oceanic surface layer. The authors have ...
  • Rapid radiocarbon (14C) analysis of coral and carbonate samples using a continuous-flow accelerator mass spectrometry (CFAMS) system 

    McIntyre, Cameron P.; Roberts, Mark L.; Burton, Joshua R.; McNichol, Ann P.; Burke, Andrea; Robinson, Laura F.; von Reden, Karl F.; Jenkins, William J. (American Geophysical Union, 2011-11-05)
    Radiocarbon analyses of carbonate materials provide critical information for understanding the last glacial cycle, recent climate history and paleoceanography. Methods that reduce the time and cost of radiocarbon (14C) ...
  • Rapid recovery of genetic diversity of stomatopod populations on Krakatau : temporal and spatial scales of marine larval dispersal 

    Barber, Paul H.; Moosa, M. K.; Palumbi, S. R. (Royal Society, 2002-07-09)
    Although the recovery of terrestrial communities shattered by the massive eruption of Krakatau in 1883 has been well chronicled, the fate of marine populations has been largely ignored. We examined patterns of genetic ...
  • Rapid response of Helheim Glacier in Greenland to climate variability over the past century 

    Andresen, Camilla S.; Straneo, Fiamma; Ribergaard, Mads H.; Bjork, Anders A.; Andersen, Thorbjorn J.; Kuijpers, Antoon; Norgaard-Pedersen, Niels; Kjaer, Kurt H.; Schjoth, Frands; Weckstrom, Kaarina; Ahlstrom, Andreas P. (2011-11-08)
    During the early 2000s the Greenland Ice Sheet experienced the largest ice mass loss observed on the instrumental record1, largely as a result of the acceleration, thinning and retreat of major outlet glaciers in West ...
  • The rapid response of the Canada Basin to climate forcing : from bellwether to alarm bells 

    McLaughlin, Fiona A.; Carmack, Eddy C.; Proshutinsky, Andrey; Krishfield, Richard A.; Guay, Christopher K.; Yamamoto-Kawai, Michiyo; Jackson, Jennifer M.; Williams, William J. (Oceanography Society, 2011-09)
    Sea ice extent in the Arctic Ocean diminished significantly during the first decade of the 2000s, most particularly in the Canada Basin where the loss of both multiyear and first-year ice was greater than in the other three ...
  • Rapid rotation of normal faults due to flexural stresses : an explanation for the global distribution of normal fault dips 

    Olive, Jean-Arthur L.; Behn, Mark D. (John Wiley & Sons, 2014-04-24)
    We present a mechanical model to explain why most seismically active normal faults have dips much lower (30–60°) than expected from Anderson-Byerlee theory (60–65°). Our model builds on classic finite extension theory but ...
  • Rapid screening for freshwater bacterial groups by using reverse line blot hybridization 

    Zwart, Gabriel; van Hannen, Erik J.; Kamst-van Agterveld, Miranda P.; Van der Gucht, Katleen; Lindstrom, Eva S.; Van Wichelen, Jeroen; Lauridsen, Torben; Crump, Byron C.; Han, Suk-Kyun; Declerck, Steven (American Society for Microbiology, 2003-10)
    The identification of phylogenetic clusters of bacteria that are common in freshwater has provided a basis for probe design to target important freshwater groups. We present a set of 16S ribosomal RNA gene-based oligonucleotide ...
  • Rapid sea level rise and ice sheet response to 8,200-year climate event 

    Cronin, Thomas M.; Vogt, P. R.; Willard, D. A.; Thunell, Robert C.; Halka, J.; Berke, M.; Pohlman, John W. (American Geophysical Union, 2007-10-24)
    The largest abrupt climatic reversal of the Holocene interglacial, the cooling event 8.6–8.2 thousand years ago (ka), was probably caused by catastrophic release of glacial Lake Agassiz-Ojibway, which slowed Atlantic ...
  • Rapid sediment deposition and fine-scale strata formation in the Hudson estuary 

    Traykovski, Peter A.; Geyer, W. Rockwell; Sommerfield, Christopher K. (American Geophysical Union, 2004-04-21)
    A 9 month time series of tripod-mounted optical and acoustic measurements of sediment concentration and bed elevation was used to examine depositional processes in relationship to hydrodynamic variables in the Hudson River ...
  • Rapid sulfurisation of highly branched isoprenoid (HBI) alkenes in sulfidic Holocene sediments from Ellis Fjord, Antarctica 

    Sinninghe Damste, Jaap S.; Rijpstra, W. Irene C.; Coolen, Marco J. L.; Schouten, Stefan; Volkman, John K. (2006-04-03)
    Samples of particulate organic matter from the water column and anoxic Holocene sediment layers from the Small Meromictic Basin (SMB) in Ellis Fjord (eastern Antarctica) were analyzed to study the early incorporation of ...