Research Interests:
My research interests centre on physical processes
governing the ocean and climate. This includes:
Ocean Eddies:
Ocean eddies are small scale (10-100km) vortices which occur in all regions of the ocean.
Despite their small size, they can have significant impacts on large scale ocean circulation -- and climate.
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Ocean Straits:
Flow through ocean straits (such as the Straits of Gibraltar) are energetic and nonlinear, producing strong turbulence and mixing.
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Glacial Climates:
One of the outstanding puzzles in paleoclimatology is to determine the cause of ice ages.
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Shear Instability:
Flow in a density stratified can be unstable because of velocity gradients in the fluid.
The resulting "shear instability" produces vortices (such as the Kelvin-Helmholtz billow shown here) and turbulence.
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Recent Publications
Papers Currently Under Review:
W. K. DEWAR & A. McC. HOGG (2008).
Inviscid dissipation of balanced flow. Submitted to Ocean Modell.
[Pre-print]
M. S. SINGH & A. McC. HOGG (2008).
Viscous effects in two-layer, unidirectional hydraulic flow. Submitted to J. Fluid Mech.
[Pre-print]
A. McC. HOGG, W. K. DEWAR, P. BERLOFF & S. KRAVTSOV (2008).
A mechanism of mesoscale ocean-atmosphere coupling and it's large scale effect on the ocean circulation.
Submitted to J. Climate.
[Pre-print]
Recent Journal Publications:
J. NYCANDER, A. McC. HOGG & L. M. FRANKCOMBE, (2008).
Open boundary conditions for nonlinear shallow water models.
Ocean Modell., doi:10.1016/j.ocemod.2008.06.003.
[Online copy from OM]
T. PRASTOWO, R. W. GRIFFITHS, G. O. HUGHES & A. McC. HOGG, (2008).
Mixing in exchange flows through a horizontal constriction.
J. Fluid Mech., 600, 235-244.
[Online copy from JFM]
A. McC. HOGG, (2008).
Glacial Cycles and Carbon Dioxide: A conceptual model.
Geophys. Res. Lett., 35, L01701, doi:10.1029/2007GL032071. [Online copy from GRL]
A. McC. HOGG, M. P. MEREDITH, J. R. BLUNDELL & C. WILSON, (2008).
Eddy heat flux in the Southern Ocean: Response to variable wind forcing.
J. Climate, 21, 608-620.
[Online copy from J. Climate]
L. M. FRANKCOMBE & A. McC. HOGG, (2007).
Tidal modulation of two-layer hydraulic exchange flows.
Ocean Science, 3, 179-188. [On-line copy from OS]
P. BERLOFF, A. McC. HOGG & W. K. DEWAR, (2007).
Dynamical mechanism of the generic low-frequency variability in wind-driven ocean gyres.
J. Phys. Ocean., 37, 2363-2386. [Online copy from JPO]
M. P. MEREDITH & A. McC. HOGG, (2006).
Circumpolar response of Southern Ocean eddy activity to changes in the Southern Annular Mode.
Geophys. Res. Lett., 33, doi:10.1029/2006GL026499. [On-line copy from GRL]
A. McC. HOGG & J. R. BLUNDELL, (2006).
Interdecadal variability of the Southern Ocean.
J. Phys. Ocean., 36, 1626-1645. [Online copy from JPO]
A. McC. HOGG & G. O. Hughes, (2006).
Shear flow and viscosity in single-layer hydraulics
J. Fluid. Mech. 548, 431-443.
[On-line copy from JFM]
A. McC. HOGG, W. K. DEWAR, P. D. KILLWORTH & J. R.
BLUNDELL, (2006).
Decadal variability of the midlatitude climate system
driven by the ocean circulation.
J. Climate, 19, 1149-1166. [On-line copy from J. Climate]
[More Publications ...]
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