Now showing items 469-488 of 1499

    • Flow-induced channelization in a porous medium 

      Mahadevan, Amala; Orpe, A. V.; Kudrolli, A.; Mahadevan, L. (2012-05-17)
      Flow through a saturated, granular, porous medium can lead to internal erosion, preferential flow enhancement and the formation of channels within the bulk of the medium. We examine this phenomenon using a combination ...
    • Foehn winds link climate-driven warming to ice shelf evolution in Antarctica 

      Cape, Mattias R.; Vernet, Maria; Skvarca, Pedro; Marinsek, Sebastian; Scambos, Ted; Domack, Eugene (John Wiley & Sons, 2015-11-03)
      Rapid warming of the Antarctic Peninsula over the past several decades has led to extensive surface melting on its eastern side, and the disintegration of the Prince Gustav, Larsen A, and Larsen B ice shelves. The warming ...
    • Forcing of the Atlantic equatorial deep jets derived from observations 

      Claus, Martin; Greatbatch, Richard J.; Brandt, Peter; Toole, John M. (American Meteorological Society, 2016-11-23)
      The equatorial deep jets (EDJs) are a ubiquitous feature of the equatorial oceans; in the Atlantic Ocean, they are the dominant mode of interannual variability of the zonal flow at intermediate depth. On the basis of more ...
    • Formation and erosion of the seasonal thermocline in the Kuroshio Extension Recirculation Gyre 

      Cronin, Meghan F.; Bond, Nicholas A.; Farrar, J. Thomas; Ichikawa, Hiroshi; Jayne, Steven R.; Kawai, Yoshimi; Konda, Masanori; Qiu, Bo; Rainville, Luc; Tomita, Hiroyuki (Elsevier Ltd., 2012-07-21)
      Data from the Kuroshio Extension Observatory (KEO) surface mooring are used to analyze the balance of processes affecting the upper ocean heat content and surface mixed layer temperature variations in the Recirculation ...
    • Formation and export of deep water in the Labrador and Irminger Seas in a GCM 

      Deshayes, Julie; Frankignoul, Claude; Drange, Helge (2006-12-13)
      The influence of changes in the rate of deep water formation in the North Atlantic subpolar gyre on the variability of the transport in the Deep Western Boundary Current is investigated in a realistic hind cast simulation ...
    • The formation and fate of internal waves in the South China Sea 

      Alford, Matthew H.; Peacock, Thomas; MacKinnon, Jennifer A.; Nash, Jonathan D.; Buijsman, Maarten C.; Centurioni, Luca R.; Chao, Shenn-Yu; Chang, Ming-Huei; Farmer, David M.; Fringer, Oliver B.; Fu, Ke-Hsien; Gallacher, Patrick C.; Graber, Hans C.; Helfrich, Karl R.; Jachec, Steven M.; Jackson, Christopher R.; Klymak, Jody M.; Ko, Dong S.; Jan, Sen; Johnston, T. M. Shaun; Legg, Sonya; Lee, I-Huan; Lien, Ren-Chieh; Mercier, Matthieu J.; Moum, James N.; Musgrave, Ruth; Park, Jae-Hun; Pickering, Andrew I.; Pinkel, Robert; Rainville, Luc; Ramp, Steven R.; Rudnick, Daniel L.; Sarkar, Sutanu; Scotti, Alberto; Simmons, Harper L.; St Laurent, Louis C.; Venayagamoorthy, Subhas K.; Wang, Yu-Huai; Wang, Joe; Yang, Yiing-Jang; Paluszkiewicz, Theresa; Tang, Tswen Yung (2015-03)
      Internal gravity waves, the subsurface analogue of the familiar surface gravity waves that break on beaches, are ubiquitous in the ocean. Because of their strong vertical and horizontal currents, and the turbulent mixing ...
    • Formation and spreading of Red Sea Outflow Water in the Red Sea 

      Zhai, Ping; Bower, Amy S.; Smethie, William M.; Pratt, Lawrence J. (John Wiley & Sons, 2015-09-29)
      Hydrographic data, chlorofluorocarbon-12 (CFC-12) and sulfur hexafluoride (SF6) measurements collected in March 2010 and September–October 2011 in the Red Sea, as well as an idealized numerical experiment are used to study ...
    • Formation of intrathermocline eddies at ocean fronts by wind-driven destruction of potential vorticity 

      Thomas, Leif N. (2008-02)
      A mechanism for the generation of intrathermocline eddies (ITEs) at wind-forced fronts is examined using a high resolution numerical simulation. Favorable conditions for ITE formation result at fronts forced by “down-front” ...
    • Formation of Subtropical Mode Water in a high-resolution ocean simulation of the Kuroshio Extension region 

      Rainville, Luc; Jayne, Steven R.; McClean, Julie L.; Maltrud, Mathew E. (2007-03-09)
      A high-resolution numerical model is used to examine the formation and variability of the North Pacific Subtropical ModeWater (STMW) over a 3-year period. The STMW distribution is found to be highly variable in both space ...
    • Forum for Arctic Modeling and Observational Synthesis (FAMOS) : past, current, and future activities 

      Proshutinsky, Andrey; Steele, Michael; Timmermans, Mary-Louise (John Wiley & Sons, 2016-06-03)
      The overall goal of the Forum for Arctic Modeling and Observational Synthesis (FAMOS) community activities reported in this special issue is to enhance understanding of processes and mechanisms driving Arctic Ocean marine ...
    • Four current meter models compared in strong currents in Drake Passage 

      Watts, D. Randolph; Kennelly, Maureen A.; Donohue, Kathleen A.; Tracey, Karen L.; Chereskin, Teresa K.; Weller, Robert A.; Victoria, Ivan (American Meteorological Society, 2013-10)
      Seven current meters representing four models on a stiffly buoyed mooring were placed for an 11-month deployment to intercompare their velocity measurements: two vector-measuring current meters (VMCMs), two Aanderaa recording ...
    • Frequency content of sea surface height variability from internal gravity waves to mesoscale eddies 

      Savage, Anna C.; Arbic, Brian K.; Richman, James G.; Shriver, Jay F.; Alford, Matthew H.; Buijsman, Maarten C.; Farrar, J. Thomas; Sharma, Hari; Voet, Gunnar; Wallcraft, Alan J.; Zamudio, Luis (John Wiley & Sons, 2017-03-28)
      High horizontal-resolution (1=12:5° and 1=25°) 41-layer global simulations of the HYbrid Coordinate Ocean Model (HYCOM), forced by both atmospheric fields and the astronomical tidal potential, are used to construct global ...
    • Freshwater and its role in the Arctic Marine System : sources, disposition, storage, export, and physical and biogeochemical consequences in the Arctic and global oceans 

      Carmack, Edward C.; Yamamoto-Kawai, Michiyo; Haine, Thomas W. N.; Bacon, Sheldon; Bluhm, Bodil A.; Lique, Camille; Melling, Humfrey; Polyakov, Igor V.; Straneo, Fiamma; Timmermans, Mary-Louise; Williams, William J. (John Wiley & Sons, 2016-03-30)
      The Arctic Ocean is a fundamental node in the global hydrological cycle and the ocean's thermohaline circulation. We here assess the system's key functions and processes: (1) the delivery of fresh and low-salinity waters ...
    • Freshwater composition of the waters off southeast Greenland and their link to the Arctic Ocean 

      Sutherland, David A.; Pickart, Robert S.; Jones, E. Peter; Azetsu-Scott, Kumiko; Eert, A. Jane; Olafsson, Jon (American Geophysical Union, 2009-05-27)
      The freshwater composition of waters on the southeast Greenland shelf and slope are described using a set of high-resolution transects occupied in summer 2004, which included hydrographic, velocity, nutrient, and chemical ...
    • Freshwater content variability in the Arctic Ocean 

      Hakkinen, Sirpa M. A.; Proshutinsky, Andrey (American Geophysical Union, 2004-03-31)
      Arctic Ocean model simulations have revealed that the Arctic Ocean has a basin-wide oscillation with cyclonic and anticyclonic circulation anomalies (Arctic Ocean Oscillation (AOO)) that has a prominent decadal variability ...
    • Freshwater export from the Labrador Current to the North Atlantic Current at the Tail of the Grand Banks of Newfoundland 

      Fratantoni, Paula S.; McCartney, Michael S. (2009-11)
      Historical hydrographic data, spanning the period 1896-2006, are used to examine the annual mean and seasonal variations in the distribution of freshwater along and across the shelf/slope boundary along the Labrador and ...
    • Freshwater in the Bay of Bengal : its fate and role in air-sea heat exchange 

      Mahadevan, Amala; Spiro Jaeger, Gualtiero; Freilich, Mara; Omand, Melissa M.; Shroyer, Emily; Sengupta, Debasis (The Oceanography Society, 2016-06)
      The strong salinity stratification in the upper 50–80 m of the Bay of Bengal affects the response of the upper ocean to surface heat fluxes. Using observations from November to December 2013, we examine the effect of surface ...
    • Friction, frontogenesis, and the stratification of the surface mixed layer 

      Thomas, Leif N.; Ferrari, Raffaele (American Meteorological Society, 2008-11)
      The generation and destruction of stratification in the surface mixed layer of the ocean is understood to result from vertical turbulent transport of buoyancy and momentum driven by air–sea fluxes and stresses. In this ...
    • Frictional secondary circulation near an upwelled thermocline 

      Csanady, Gabriel T. (Woods Hole Oceanographic Institution, 1982-12)
      A first order, linear analysis of thermocline upwelling shows that a quasigeostrophic baroclinic jet accompanies the upwelling. The secondary circulation induced in such a flow field in a meridional plane by turbulent ...
    • From salty to fresh—salinity processes in the Upper-ocean Regional Study-2 (SPURS-2) : diagnosing the physics of a rainfall-dominated salinity minimum 

      Schmitt, Raymond W.; Asher, William E.; Bingham, Frederick; Carton, James A.; Centurioni, Luca R.; Farrar, J. Thomas; Gordon, Arnold L.; Hodges, Benjamin A.; Jessup, Andrew T.; Kessler, William S.; Rainville, Luc; Shcherbina, Andrey Y. (The Oceanography Society, 2015-03)
      One of the notable features of the global ocean is that the salinity of the North Atlantic is about 1 psu higher than that of the North Pacific. This contrast is thought to be due to one of the large asymmetries in the ...