However, landward sand movement occurs through the
migration of sand waves under the action of flood
currents; subtidal flood channels, which extend into the
inlet and which dissect the partly intertidal landward
portion of the delta; marginal ebb-aligned spits; and
spillover lobes formed by the action of ebb currents over
the lower parts of the ebb shield (Hayes, 1980).
Ebb-tidal deltas occur seaward of the inlet, predominantly under the influence of ebb-tidal currents and wave
action. These deltas are usually comprised of an ebb
channel, maintained by strong tidal currents; linear bars,
formed by wave–current interactions along the margins
of the ebb channel; a terminal lobe formed at the distal
(seaward) end of the ebb channel, where the tidal current
diminishes; and sandsheets or swash platforms formed
by wave action adjacent to the ebb channel characterized
by migrating swash bars.
The morphology of the tidal deltas is characterized by
tidal prism, configuration of the inlet and adjacent
shoreline, wave climate, and the rate of littoral sediment
Coastal Landforms, Figure 11 Tombolo on Om Beach, Gokarn, west coast of India (Picture by P. Hanamgond).
Coastal Landforms, Figure 12 Flat coastal plains, crisscrossed by glacial rivers, are known as strandflats. This view shows
a 3-km-wide strandflat along the coast of Oscar II Land to the south of Engelskbukta (Source: http://www.swisseduc.ch/glaciers/
arctic-islands/arctic-07-en.html?id¼8).
152
COASTAL LANDFORMS
migration of sand waves under the action of flood
currents; subtidal flood channels, which extend into the
inlet and which dissect the partly intertidal landward
portion of the delta; marginal ebb-aligned spits; and
spillover lobes formed by the action of ebb currents over
the lower parts of the ebb shield (Hayes, 1980).
Ebb-tidal deltas occur seaward of the inlet, predominantly under the influence of ebb-tidal currents and wave
action. These deltas are usually comprised of an ebb
channel, maintained by strong tidal currents; linear bars,
formed by wave–current interactions along the margins
of the ebb channel; a terminal lobe formed at the distal
(seaward) end of the ebb channel, where the tidal current
diminishes; and sandsheets or swash platforms formed
by wave action adjacent to the ebb channel characterized
by migrating swash bars.
The morphology of the tidal deltas is characterized by
tidal prism, configuration of the inlet and adjacent
shoreline, wave climate, and the rate of littoral sediment
Coastal Landforms, Figure 11 Tombolo on Om Beach, Gokarn, west coast of India (Picture by P. Hanamgond).
Coastal Landforms, Figure 12 Flat coastal plains, crisscrossed by glacial rivers, are known as strandflats. This view shows
a 3-km-wide strandflat along the coast of Oscar II Land to the south of Engelskbukta (Source: http://www.swisseduc.ch/glaciers/
arctic-islands/arctic-07-en.html?id¼8).
152
COASTAL LANDFORMS