Now showing items 5337-5356 of 7453

  • Posters 

    Unknown author (IAMSLIC, 2010)

    Unknown author (IAMSLIC, 2015)
  • Posters 

    Unknown author (IAMSLIC, 2013)
  • Postpartum whistle production in bottlenose dolphins 

    Fripp, Deborah R.; Tyack, Peter L. (2007-11)
    Despite much research on bottlenose dolphin signature whistles, few have investigated the role of maternal whistles in early calf development. We investigated maternal whistle use in the first weeks postpartum for captive ...
  • Postprocessing system for echo sounder data 

    Foote, Kenneth G.; Knudsen, Hans Petter; Korneliussen, Rolf J.; Nordbø, Per Erik; Røang, Kjell (Acoustical Society of America, 1991-07)
    Echo sounding is a powerful and widely used technique for remote sensing of the marine environment. In order to enhance the power of the echo sounder, a postprocessing system has been designed and realized in standard ...
  • Potassium currents distinguish the two subtypes of morphologically distinct skate bipolar cells 

    Qian, Haohua; Chappell, Richard L.; Redenti, Stephen; Ripps, Harris (Marine Biological Laboratory, 2004-12)
    Bipolar cells in the vertebrate retina are second-order neurons that convey visual information from photoreceptors to ganglion cells, the neurons that relay the message to the brain. Bipolar cells consist typically of ...
  • A potential bias in coral reconstruction of sea surface temperature 

    Solow, Andrew R.; Huppert, Amit (American Geophysical Union, 2004-03-25)
    Isotopic measurements in corals are used to reconstruct past sea surface temperature. These reconstructions are based on calibration regression analyses using paired measurements of modern isotopic composition and sea ...
  • Potential for sound sensitivity in cephalopods 

    Mooney, T. Aran; Hanlon, Roger T.; Madsen, Peter T.; Christensen-Dalsgaard, Jakob; Ketten, Darlene R.; Nachtigall, Paul E. (2010-07)
    Hearing is a primary sense in many marine animals and we now have a reasonable understanding of what stimuli generate clear responses, the frequency range of sensitivity, expected threshold values and mecha-nisms of sound ...
  • Potential importance of physiologically diverse benthic foraminifera in sedimentary nitrate storage and respiration 

    Bernhard, Joan M.; Casciotti, Karen L.; McIlvin, Matthew R.; Beaudoin, David J.; Visscher, Pieter T.; Edgcomb, Virginia P. (American Geophysical Union, 2012-07-03)
    Until recently, the process of denitrification (conversion of nitrate or nitrite to gaseous products) was thought to be performed exclusively by prokaryotes and fungi. The finding that foraminifera perform complete ...
  • Potential influence of climate-induced vegetation shifts on future land use and associated land carbon fluxes in Northern Eurasia 

    Kicklighter, David W.; Cai, Y.; Zhuang, Qianlai; Parfenova, E. I.; Paltsev, S.; Sokolov, Andrei P.; Melillo, Jerry M.; Reilly, John M.; Tchebakova, Nadja M.; Lu, X. (IOP Publishing, 2014-03-21)
    Climate change will alter ecosystem metabolism and may lead to a redistribution of vegetation and changes in fire regimes in Northern Eurasia over the 21st century. Land management decisions will interact with these ...
  • Potential vorticity constraint on the flow between two basins 

    Yang, Jiayan; Price, James F. (American Meteorological Society, 2007-09)
    This paper examines the role of potential vorticity (PV) balance in source- and sink-driven flows between two basins. As shown in previous studies, PV advection into a basin, say a positive PV advection, requires a negative ...
  • Power efficiency of outer hair cell somatic electromotility 

    Rabbitt, Richard D.; Clifford, Sarah; Breneman, Kathryn D.; Farrell, Brenda; Brownell, William E. (Public Library of Science, 2009-07-24)
    Cochlear outer hair cells (OHCs) are fast biological motors that serve to enhance the vibration of the organ of Corti and increase the sensitivity of the inner ear to sound. Exactly how OHCs produce useful mechanical power ...
  • Power spectra of infragravity waves in a deep ocean 

    Godin, Oleg A.; Zabotin, Nikolay A.; Sheehan, Anne F.; Yang, Zhaohui; Collins, John A. (John Wiley & Sons, 2013-05-29)
    Infragravity waves (IGWs) play an important role in coupling wave processes in the ocean, ice shelves, atmosphere, and the solid Earth. Due to the paucity of experimental data, little quantitative information is available ...
  • Pre-aged plant waxes in tropical lake sediments and their influence on the chronology of molecular paleoclimate proxy records 

    Douglas, Peter M. J.; Pagani, Mark; Eglinton, Timothy I.; Brenner, Mark; Hodell, David A.; Curtis, Jason H.; Ma, Keith; Breckenridge, Andy (2014-07)
    Sedimentary records of plant-wax hydrogen (δDwax) and carbon (δ13Cwax) stable isotopes are increasingly applied to infer past climate change. Compound-specific radiocarbon analyses, however, indicate that long time lags ...
  • Precipitation and growth of barite within hydrothermal vent deposits from the Endeavour Segment, Juan de Fuca Ridge 

    Jamieson, John W.; Hannington, Mark D.; Tivey, Margaret K.; Hansteen, Thor; Williamson, Nicole M.-B.; Stewart, Margaret; Fietzke, Jan; Butterfield, David A.; Frische, Matthias; Allen, Leigh; Cousens, Brian; Langer, Julia (2015-10)
    Hydrothermal vent deposits form on the seafloor as a result of cooling and mixing of hot hydrothermal fluids with cold seawater. Amongst the major sulfide and sulfate minerals that are preserved at vent sites, barite (BaSO4) ...
  • Precipitation as the main driver of Neoglacial fluctuations of Gualas glacier, Northern Patagonian Icefield 

    Bertrand, Sebastien; Hughen, Konrad A.; Lamy, Frank; Stuut, Jan-Berend W.; Torrejon, Fernando; Lange, Carina B. (Copernicus Publications on behalf of the European Geosciences Union, 2012-03-15)
    Glaciers are frequently used as indicators of climate change. However, the link between past glacier fluctuations and climate variability is still highly debated. Here, we investigate the mid- to late-Holocene fluctuations ...
  • Precision requirements for space-based XCO2 data 

    Miller, C. E.; Crisp, D.; DeCola, P. L.; Olsen, S. C.; Randerson, James T.; Michalak, Anna M.; Alkhaled, A.; Rayner, Peter; Jacob, Daniel J.; Suntharalingam, P.; Jones, D. B. A.; Denning, A. S.; Nicholls, M. E.; Doney, Scott C.; Pawson, S.; Boesch, H.; Connor, B. J.; Fung, Inez Y.; O'Brien, D.; Salawitch, R. J.; Sander, S. P.; Sen, B.; Tans, Pieter P.; Toon, G. C.; Wennberg, Paul O.; Wofsy, Steven C.; Yung, Y. L.; Law, R. M. (American Geophysical Union, 2007-05-26)
    Precision requirements are determined for space-based column-averaged CO2 dry air mole fraction (XCO2) data. These requirements result from an assessment of spatial and temporal gradients in XCO2, the relationship between ...
  • Predictability 

    Hacker, Joshua; Hansen, James; Berner, Judith; Chen, YangQuan; Eshel, Gidon; Hakim, Gregory; Lazarus, Steven; Majumdar, Sharanya; Morss, Rebecca; Poje, Andrew; Sheremet, Vitalii A.; Tang, Youmin; Webb, Colleen (2005-12)
    A group of junior faculty members and UCAR junior scientists convened in Boulder, CO on June 16-18, 2003 for discussion on future scientific directions. This report summarizes the goals and products of one of the three ...
  • Predicted scattering of sound by diffuse hydrothermal vent plumes at mid-ocean ridges 

    Duda, Timothy F.; Trivett, D. Andrew (Acoustical Society of America, 1998-01)
    Amplitude and phase fluctuations of monochromatic acoustic signals traveling through diffuse mid-ocean ridge hydrothermal vent plumes are modeled using existing theory in an attempt to find suitable frequencies and path ...