Now showing items 2891-2910 of 7453

  • Grain-size dynamics beneath mid-ocean ridges : implications for permeability and melt extraction 

    Turner, Andrew J.; Katz, Richard F.; Behn, Mark D. (John Wiley & Sons, 2015-03-26)
    Grain size is an important control on mantle viscosity and permeability, but is difficult or impossible to measure in situ. We construct a two-dimensional, single phase model for the steady state mean grain size beneath a ...
  • Grand challenges in biodiversity informatics 

    Sarkar, Indra Neil (2007-01)
    The exponentially growing array of biological data has necessitated the development of a new information management domain, biodiversity informatics. It is one of the newest members of the ‘informatics’ sub-disciplines, ...
  • A graphical user interface for processing data from the high resolution profiler (HRP) 

    Montgomery, Ellyn T.; Bolmer, S. Thompson (Woods Hole Oceanographic Institution, 1998-03)
    The High Resolution Profiler (HRP) is one of the only oceanographic instruments that is capable of measuring turbulent velocity and temperature fluctuations in the abyssal ocean. It is a unique device, and consequently ...
  • Gravitational potential energy balance for the thermal circulation in a model ocean 

    Huang, Rui Xin; Jin, Xiangze (American Meteorological Society, 2006-07)
    The gravitational potential energy balance of the thermal circulation in a simple rectangular model basin is diagnosed from numerical experiments based on a mass-conserving oceanic general circulation model. The vertical ...
  • Gravity and seismic study of crustal structure along the Juan de Fuca Ridge axis and across pseudofaults on the ridge flanks 

    Marjanovic, Milena; Carbotte, Suzanne M.; Nedimovic, Mladen R.; Canales, J. Pablo (American Geophysical Union, 2011-05-17)
    Variations in topography and seismic structure are observed along the Juan de Fuca (JdF) Ridge axis and in the vicinity of pseudofaults on the ridge flanks left by former episodes of ridge propagation. Here we analyze ...
  • Gravity base stations in Indonesia and in the southwest Pacific 

    Jezek, Peter (Woods Hole Oceanographic Institution, 1976-06)
    During October, November, and December of 1975, seventy gravity base stations were established on the islands of eastern Indonesia (Timor, Wetar, Leti, Moa, Sermata, Babar, Ambon, Seram, Manawoko, Kasiui, Kao Besar, ...
  • Gravity currents and internal waves in a stratified fluid 

    White, Brian L.; Helfrich, Karl R. (Cambridge University Press, 2008-11-14)
    A steady theory is presented for gravity currents propagating with constant speed into a stratified fluid with a general density profile. Solution curves for front speed versus height have an energy-conserving upper bound ...
  • Gravity currents from a dam-break in a rotating channel 

    Helfrich, Karl R.; Mullarney, Julia C. (Cambridge University Press, 2005-07-26)
    The generation of a gravity current by the release of a semi-infinite region of buoyant fluid of depth $H$ overlying a deeper, denser and quiescent lower layer in a rotating channel of width $w$ is considered. Previous ...
  • The gravity field and plate boundaries in Venezuela 

    Folinsbee, Robert Allin (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1972-01)
    Free-air and simple Bouguer anomaly maps of the Venezuelan continental margin (from 60°W to 72°W and from 7°N to 13°N) are presented. The major features of the free-air map are: the large lows associated with the deep ...
  • Gravity observations 09.0°E to 37.9°W along the equator 

    Dean, Jerome P.; McCullough, C. B. (Woods Hole Oceanographic Institution, 1972-07)
    This report presents free air gravity values and computed free air anomalies obtained on an equatorial traverse from 09°00'E. to 37°56'W. It is the second of a series of reports presenting the gravity data to be used in ...
  • Gravity wave characteristics in the mesopause region revealed from OH airglow imager observations over Northern Colorado 

    Tang, Yihuan; Dou, Xiankang; Li, Tao; Nakamura, Takuji; Xue, Xianghui; Huang, Can; Manson, Alan; Meek, Chris; Thorsen, Denise; Avery, Susan K. (John Wiley & Sons, 2014-01-31)
    Using 5 years of all-sky OH airglow imager data over Yucca Ridge Field Station, CO (40.7°N, 104.9°W), from September 2003 to September 2008, we extract and deduce quasi-monochromatic gravity wave (GW) characteristics in ...
  • The great 2012 Arctic Ocean summer cyclone enhanced biological productivity on the shelves 

    Zhang, Jinlun; Ashjian, Carin J.; Campbell, Robert G.; Hill, Victoria; Spitz, Yvette H.; Steele, Michael (John Wiley & Sons, 2014-01-16)
    A coupled biophysical model is used to examine the impact of the great Arctic cyclone of early August 2012 on the marine planktonic ecosystem in the Pacific sector of the Arctic Ocean (PSA). Model results indicate that the ...
  • The great Polar controversy: Dr. Cook, Mt.McKinley, and the quest for the Poles 

    Sfraga, Michael; Stephens, Dennis (IAMSLIC, 1999)
  • Green algal infection of American horseshoe crab (Limulus polyphemus) exoskeletal structures 

    Braverman, Hillary; Leibovitz, Louis; Lewbart, Gregory A. (2012-06)
    Degenerative lesions in the dorsum of the horseshoe crab (Limulus polyphemus) exoskeleton, eyes, arthrodial membrane, and base of the telson were documented in a population of wild caught laboratory animals. The disease ...
  • The green algal underground : evolutionary secrets of desert cells 

    Cardon, Zoe G.; Gray, Dennis W.; Lewis, Louise A. (American Institute of Biological Sciences, 2008-02)
    Microscopic, unicellular, free-living green algae are found in desert microbiotic crusts worldwide. Although morphologically simple, green algae in desert crusts have recently been found to be extraordinarily diverse, with ...
  • Green flash presentations 

    Unknown author (IAMSLIC, 2014)
  • Green Flash presentations 

    Unknown author (IAMSLIC, 2011)
  • Green Flash Presentations 

    Unknown author (IAMSLIC, 2010)
  • Greening China naturally 

    Cao, Shixiong; Sun, Ge; Zhang, Zhiqiang; Chen, Liding; Feng, Qi; Fu, Bojie; McNulty, Steve; Shankman, David; Tang, Jianwu; Wang, Yanhui; Wei, Xiaohua (2011-04)
    China leads the world in afforestation, and is one of the few countries whose forested area is increasing. However, this massive ‘‘greening’’ effort has been less effective than expected; afforestation has sometimes produced ...
  • The Greenland Flow Distortion Experiment 

    Renfrew, Ian A.; Petersen, Guðrún N.; Outten, S.; Sproson, D.; Moore, G. W. K.; Hay, C.; Ohigashi, T.; Zhang, S.; Kristjansson, J. E.; Fore, I.; Olafsson, H.; Gray, S. L.; Irvine, E. A.; Bovis, K.; Brown, P. R. A.; Swinbank, R.; Haine, Thomas W. N.; Lawrence, A.; Pickart, Robert S.; Shapiro, M.; Woolley, A. (American Meteorological Society, 2008-09)
    Greenland has a major influence on the atmospheric circulation of the North Atlantic–western European region, dictating the location and strength of mesoscale weather systems around the coastal seas of Greenland and directly ...