Now showing items 1-5 of 5

  • Enhancement in vertical fluxes at a front by mesoscale-submesoscale coupling 

    Ramachandran, Sanjiv; Tandon, Amit; Mahadevan, Amala (John Wiley & Sons, 2014-12-12)
    Oceanic frontal instabilities are of importance for the vertical exchange of properties in the ocean. Submesoscale, O(1) Rossby number, dynamics are particularly relevant for inducing the vertical (and lateral) flux of ...
  • 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 ...
  • Large-scale alignment of oceanic nitrate and density 

    Omand, Melissa M.; Mahadevan, Amala (John Wiley & Sons, 2013-10-15)
    By analyzing global data, we find that over large scales, surfaces of constant nitrate are often better aligned with isopycnals than with isobars, particularly below the euphotic zone. This is unexplained by the movement ...
  • Mechanism for export of sediment-derived iron in an upwelling regime 

    Siedlecki, Samantha A.; Mahadevan, Amala; Archer, D. E. (American Geophysical Union, 2012-02-11)
    Model simulations performed with a three-dimensional, high-resolution, process study ocean model of eastern boundary upwelling systems are used to describe a mechanism that efficiently transports sediment-derived dissolved ...
  • Reconstructing the ocean's interior from surface data 

    Wang, Jinbo; Flierl, Glenn R.; LaCasce, Joseph H.; McClean, Julie L.; Mahadevan, Amala (American Meteorological Society, 2013-08)
    A new method is proposed for extrapolating subsurface velocity and density fields from sea surface density and sea surface height (SSH). In this, the surface density is linked to the subsurface fields via the surface ...