We obtain an expression for the total northward mass
transport in a porous bed of large extant subject to a stress
applied at the top free surface using Beta plane approximation. It
is found that beta effect is found to be responsible for western
intensification of ocean currents. The total northward transport
of fluid (See Sverdrup [11]) is found to be closed through the
western boundary layer (See: Stommel [4]) in the presence of
porous medium.