The Sea-coast: (1) Destruction, (2) Littoral Drift, (3) ProtectionLongmans, Green, 1903 - 361 páginas |
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Página 14
... feet in height or over , the velocity of motion varies as the depth of the water in repose , and is the same that a ... high , a length of 6 feet , and a velocity of 23 feet a second , with 15 to 20 in a minute . The period of the wave ...
... feet in height or over , the velocity of motion varies as the depth of the water in repose , and is the same that a ... high , a length of 6 feet , and a velocity of 23 feet a second , with 15 to 20 in a minute . The period of the wave ...
Página 15
... in the ratio the length bears to the height . Thus a wave 30 feet long and 10 feet high would affect the water 6 inches at a depth of 10 feet below the bottom of the wave ; whereas a wave of the same height and three times the length ...
... in the ratio the length bears to the height . Thus a wave 30 feet long and 10 feet high would affect the water 6 inches at a depth of 10 feet below the bottom of the wave ; whereas a wave of the same height and three times the length ...
Página 17
... in a heavy gale during one set of spring tides , and that 10,000 tons were drifted along the beach in two tides on another occasion . In the Solent , near Hurst Castle , a shingle bank , 2 miles long and 12 feet high , consisting ...
... in a heavy gale during one set of spring tides , and that 10,000 tons were drifted along the beach in two tides on another occasion . In the Solent , near Hurst Castle , a shingle bank , 2 miles long and 12 feet high , consisting ...
Página 19
... feet high , and the depth of water where it breaks , in repose , at 5 feet ; the weight of sea - water as 64 lbs . per cubic foot ; the length of the wave as 30 feet ; the velocity of movement due to the head of 5 feet , as 18 feet a ...
... feet high , and the depth of water where it breaks , in repose , at 5 feet ; the weight of sea - water as 64 lbs . per cubic foot ; the length of the wave as 30 feet ; the velocity of movement due to the head of 5 feet , as 18 feet a ...
Página 20
... feet , the summit of the column reaching 10 feet above the beach . The weight of this column of water would exert a statical pressure on each square foot of the beach of 0.28 ton ; and falling from a mean height of 5 feet , with a ...
... feet , the summit of the column reaching 10 feet above the beach . The weight of this column of water would exert a statical pressure on each square foot of the beach of 0.28 ton ; and falling from a mean height of 5 feet , with a ...
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The Sea-coast: 1. Destruction, 2. Littoral Drift, 3. Protection William Henry Wheeler Vista completa - 1902 |
Términos y frases comunes
12 feet 20 feet alluvium angle bank of shingle basalt beach in front beach material Blackpool boulder clay boulders Bridlington carried chalk chalk cliffs channel chert Clacton clay cliffs consist coast coast-line composed concrete considerable constructed covered with sand denudation deposited depth derived direction distance dunes entrance erected erosion estuary extends face fathoms feet high Felixstowe flints flood tide foot formed gravel groynes half a mile harbour headland heavy gales height high groynes high tides high water Humber inches in diameter inland jetty Kilnsea land length limestone littoral drift London Clay low groynes low water marshes mile wide on-shore gales pebbles pier piles placed planking promenade protection quantity quartzite rise river rocks sand and shingle sand-hills sandstone sandy sea-wall seaward shingle and sand shingle-bank shore slope spring tides Spurn Point stones surface tidal timber varying wall washed width wind Withernsea yards long yards wide