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Record #188249:

Large-scale oceanographic constraints on the distribution of melting and freezing under ice shelves / Christopher M. Little, Anand Gnanadesikan, Robert Hallberg.

Title: Large-scale oceanographic constraints on the distribution of melting and freezing under ice shelves / Christopher M. Little, Anand Gnanadesikan, Robert Hallberg.
Author(s): Little, Christopher M.
Gnanadesikan, Anand.
Hallberg, Robert.
Date: 2009.
In: Journal of Physical Oceanography. (2009.), Vol. 38(10) (2009)
Abstract: Investigates influence of buoyancy fluxes on locations of melting and freezing under ice shelves under different bathymetric conditions. Topography may constrain circulation through influence on PV field, but melting and freezing induce local circulation that may modify locations of heat transport to ice shelf. Uses idealized set of "decoupled" numerical simulations employing fixed diapycnal fluxes. Experiments and scaling considerations indicate that topographic gradients dominate flow in interior, but recirculation plumes dominate near buoyancy fluxes. Compares thermodynamically decoupled models to "coupled" simulations in which ice-ocean heat and freshwater fluxes are driven by interior flow. Here influence of bathymetry on flow throughout cavity is weakened by stratification, ice shelf slope, and strong meridionally distributed buoyancy fluxes.
Notes:

Journal of Physical Oceanography. Vol. 38(10) :2242-2255 (2009).

Keywords: 551.32 -- Glaciology.
551.46 -- Oceanography, physical.
551.324.28 -- Ice shelves.
551.465 -- Oceanography, dynamics.
551.465.45 -- Water masses.
551.322 -- Ice and snow.
536.421.1 -- Melting.
536.421.4 -- Freezing.
551.462 -- Submarine topography, bottom forms.
551.465.4 -- Oceanography, stratification.
551.465.7 -- Oceanography, energy budget.
519.673 -- Modelling.
E6 -- Glaciology: floating ice.
(*7) -- Antarctic regions.
(*80) -- Southern Ocean.
SPRI record no.: 188249

MARCXML

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035 ## ‡aSPRI-188249
040 ## ‡aUkCU-P‡beng‡eaacr
100 1# ‡aLittle, Christopher M.
245 10 ‡aLarge-scale oceanographic constraints on the distribution of melting and freezing under ice shelves /‡cChristopher M. Little, Anand Gnanadesikan, Robert Hallberg.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2009.
300 ## ‡ap. 2242-2255 :‡bill., diags., tables, maps.
500 ## ‡aJournal of Physical Oceanography. Vol. 38(10) :2242-2255 (2009).
520 3# ‡aInvestigates influence of buoyancy fluxes on locations of melting and freezing under ice shelves under different bathymetric conditions. Topography may constrain circulation through influence on PV field, but melting and freezing induce local circulation that may modify locations of heat transport to ice shelf. Uses idealized set of "decoupled" numerical simulations employing fixed diapycnal fluxes. Experiments and scaling considerations indicate that topographic gradients dominate flow in interior, but recirculation plumes dominate near buoyancy fluxes. Compares thermodynamically decoupled models to "coupled" simulations in which ice-ocean heat and freshwater fluxes are driven by interior flow. Here influence of bathymetry on flow throughout cavity is weakened by stratification, ice shelf slope, and strong meridionally distributed buoyancy fluxes.
530 ## ‡aAlso issued online ‡uurn:doi:10.1175/2008JPO3928.1‡uhttps://dx.doi.org/10.1175/2008JPO3928.1
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.46 -- Oceanography, physical.‡2udc
650 07 ‡a551.324.28 -- Ice shelves.‡2udc
650 07 ‡a551.465 -- Oceanography, dynamics.‡2udc
650 07 ‡a551.465.45 -- Water masses.‡2udc
650 07 ‡a551.322 -- Ice and snow.‡2udc
650 07 ‡a536.421.1 -- Melting.‡2udc
650 07 ‡a536.421.4 -- Freezing.‡2udc
650 07 ‡a551.462 -- Submarine topography, bottom forms.‡2udc
650 07 ‡a551.465.4 -- Oceanography, stratification.‡2udc
650 07 ‡a551.465.7 -- Oceanography, energy budget.‡2udc
650 07 ‡a519.673 -- Modelling.‡2udc
650 07 ‡aE6 -- Glaciology: floating ice.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*80) -- Southern Ocean.‡2udc
700 1# ‡aGnanadesikan, Anand.
700 1# ‡aHallberg, Robert.
773 0# ‡7nnas ‡tJournal of Physical Oceanography. ‡gVol. 38(10) (2009) ‡wSPRI-78712
916 ## ‡a2009/07/31 -- RF
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20221003 ‡bRF