Now showing items 4003-4022 of 7907

    • Limits to future expansion of surface-melt-enhanced ice flow into the interior of western Greenland 

      Poinar, Kristin; Joughin, Ian; Das, Sarah B.; Behn, Mark D.; Lenaerts, Jan T. M.; van den Broeke, Michiel R. (John Wiley & Sons, 2015-03-24)
      Moulins are important conduits for surface meltwater to reach the bed of the Greenland Ice Sheet. It has been proposed that in a warming climate, newly formed moulins associated with the inland migration of supraglacial ...
    • Limnology of tundra ponds, Barrow, Alaska 

      Hobbie, John E. (Dowden, Hutchinson & Ross, 1980)
      This book is a report of investigations of several small ponds on the arctic tundra near Barrow, Alaska. The main study, which ran from 1971 through 1973, was funded from three sources: The National Science Foundation, ...
    • Linear and nonlinear Rossby waves in basins both with and without a thin meridional barrier 

      Atherton, Juli (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2002-02)
      The linear and nonlinear Rossby wave solutions are examined in homogeneous square basins on the ß-plane both with and without a thin meridional barrier In the presence of the meridional barrier the basin is almost ...
    • Linear and nonlinear stratified spindown over sloping topography 

      Benthuysen, Jessica A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-06)
      In a stratified rotating fluid, frictionally driven circulations couple with the buoyancy field over sloping topography. Analytical and numerical methods are used to quantify the impact of this coupling on the vertical ...
    • Linear normal mode analysis of baroclinic instability in a meridional channel 

      Walker, Alison (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-03)
      Numerical solutions of the unstable, growing modes are found for the two-layer inviscid quasigeostrophic equations in a meridional channel. A steady mean flow in the N-S direction is imposed in the upper layer, and it ...
    • Linear stability analysis for monami in a submerged seagrass bed 

      Singh, Ravi; Bandi, M. M.; Mahadevan, Amala; Mandre, Shreyas (Cambridge University Press, 2015-11-24)
      The onset of monami – the synchronous waving of seagrass beds driven by a steady flow – is modelled as a linear instability of the flow. Unlike previous works, our model considers the drag exerted by the grass in establishing ...
    • Linearity of fisheries acoustics, with addition theorems 

      Foote, Kenneth G. (Acoustical Society of America, 1983-06)
      An experiment to verify the basic linearity of fisheries acoustics is described. Herring (Clupea harengus L.) was the subject fish. Acoustic measurements consisted of the echo energy from aggregations of encaged but otherwise ...
    • Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean 

      Cooper, Lee W.; Benner, Ronald; McClelland, James W.; Peterson, Bruce J.; Holmes, Robert M.; Raymond, Peter A.; Hansell, Dennis A.; Grebmeier, Jacqueline M.; Codispoti, Louis A. (American Geophysical Union, 2005-12-07)
      Concentrations of dissolved organic carbon (DOC) and δ18O values have been determined following sampling of runoff from a number of major arctic rivers, including the Ob, Yenisey, Lena, Kolyma, Mackenzie and Yukon in ...
    • Linking bacterivory and phyletic diversity of protists with a marker gene survey and experimental feeding with BrdU-labeled bacteria 

      Fay, Scott A.; Gast, Rebecca J.; Sanders, Robert W. (Inter-Research, 2013-12-16)
      Over the last few decades, molecular methods have vastly improved our ability to study the diversity of microbial communities. In molecular diversity surveys, the function of protists is often inferred from phylogeny. Yet ...
    • Linking ecology and economics for ecosystem management 

      Farber, Stephen; Costanza, Robert; Childers, Daniel L.; Erickson, Jon; Gross, Katherine; Grove, J. Morgan; Hopkinson, Charles S.; Kahn, James; Pincetl, Stephanie; Troy, Austin; Warren, Paige; Wilson, Matthew (American Institute of Biological Sciences, 2006-02)
      This article outlines an approach, based on ecosystem services, for assessing the trade-offs inherent in managing humans embedded in ecological systems. Evaluating these trade-offs requires an understanding of the biophysical ...
    • Linking glacially modified waters to catchment-scale subglacial discharge using autonomous underwater vehicle observations 

      Stevens, Laura A.; Straneo, Fiamma; Das, Sarah; Plueddemann, Albert J.; Kukulya, Amy L.; Morlighem, Mathieu (Copernicus Publications on behalf of the European Geosciences Union, 2016-02-24)
      Measurements of near-ice (<  200 m) hydrography and near-terminus subglacial hydrology are lacking, due in large part to the difficulty in working at the margin of calving glaciers. Here we pair detailed hydrographic and ...
    • Linking habitat mosaics and connectivity in a coral reef seascape 

      McMahon, Kelton W.; Berumen, Michael L.; Thorrold, Simon R. (2012-06)
      Tropical marine ecosystems are under mounting anthropogenic pressure from overfishing and habitat destruction, leading to declines in their structure and function on a global scale. While maintaining connectivity among ...
    • Linking human well-being and jellyfish : ecosystem services, impacts, and societal responses 

      Graham, William M.; Gelcich, Stefan; Robinson, Kelly L.; Duarte, Carlos M.; Brotz, Lucas; Purcell, Jennifer E.; Madin, Laurence P.; Mianzan, Hermes; Sutherland, Kelly R.; Uye, Shin-Ichi; Pitt, Kylie A.; Lucas, Cathy H.; Bogeberg, Molly; Brodeur, Richard D.; Condon, Robert H. (Ecological Society of America, 2014-11)
      Jellyfish are usually perceived as harmful to humans and are seen as “pests”. This negative perception has hindered knowledge regarding their value in terms of ecosystem services. As humans increasingly modify and interact ...
    • Linking the oceans to public health : current efforts and future directions 

      Kite-Powell, Hauke L.; Fleming, Lora E.; Backer, Lorraine C.; Faustman, Elaine M.; Hoagland, Porter; Tsuchiya, Ami; Younglove, Lisa R.; Wilcox, Bruce A.; Gast, Rebecca J. (BioMed Central, 2008-11-07)
      We review the major linkages between the oceans and public health, focusing on exposures and potential health effects due to anthropogenic and natural factors including: harmful algal blooms, microbes, and chemical pollutants ...
    • Links between annual, Milankovitch and continuum temperature variability 

      Huybers, Peter; Curry, William B. (2006-03-23)
      Climatic processes are intimately coupled so that understanding variability at any one time-scale requires some understanding of the whole. Spectra of Earth’s surface temperature exemplify this interdependence, having a ...
    • Links from mantle to microbe at the Lau Integrated Study Site : insights from a back-arc spreading center 

      Tivey, Margaret K.; Becker, Erin; Beinart, Roxanne; Fisher, Charles R.; Girguis, Peter R.; Langmuir, Charles H.; Michael, Peter J.; Reysenbach, Anna-Louise (The Oceanography Society, 2012-03)
      The Lau Integrated Study Site (ISS) has provided unique opportunities for study of ridge processes because of its back-arc setting in the southwestern Pacific. Its location allows study of a biogeographical province distinct ...
    • Lipid biomarkers in Symbiodinium dinoflagellates : new indicators of thermal stress 

      Kneeland, Jessie M.; Hughen, Konrad A.; Cervino, J. M.; Hauff, B.; Eglinton, Timothy I. (2013-06-13)
      Lipid content and fatty acid profiles of corals and their dinoflagellate endosymbionts are known to vary in response to high temperature stress. To better understand the heat stress response in these symbionts, we investigated ...
    • Lipid biomarkers of coral stress : calibration and exploration 

      Kneeland, Jessie M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-06)
      Corals are increasingly threatened by warming sea surface temperatures and other anthropogenic changes. The delicate symbiosis between corals and their algal endosymbionts (zooxanthellae) is easil ...
    • Lipid remodelling is a widespread strategy in marine heterotrophic bacteria upon phosphorus deficiency 

      Sebastian, Marta; Smith, Alastair; Gonzalez, Jose M.; Fredricks, Helen F.; Van Mooy, Benjamin; Koblizek, Michal; Brandsma, Joost; Koster, Grielof; Mestre, Mireia; Mostajir, Behzad; Pitta, Paraskevi; Postle, Anthony D.; Sanchez, Pablo; Gasol, Josep M.; Scanlan, David J.; Chen, Yin (Nature Publishing Group, 2015-11-13)
      Upon phosphorus (P) deficiency, marine phytoplankton reduce their requirements for P by replacing membrane phospholipids with alternative non-phosphorus lipids. It was very recently demonstrated that a SAR11 isolate also ...