The Sea-coast: (1) Destruction (2) Littoral Drift (3) ProtectionLongmans, Green, and Company, 1902 - 361 páginas This title deals with the effects of erosion and littoral drift on the English and continental coast-lines bordering the North Sea, and outlines protective measures including sea-walls and groynes. |
Dentro del libro
Página 13
... height , and when the tide is from 7 or 8 feet up the wall , the undulations only rise and fall against the face , and are reflected without delivering any perceptible stroke . When , owing to the state of the tide , the water becomes ...
... height , and when the tide is from 7 or 8 feet up the wall , the undulations only rise and fall against the face , and are reflected without delivering any perceptible stroke . When , owing to the state of the tide , the water becomes ...
Página 14
... height equal to that from the crest of the wave to the level of the water in repose . Approximately T V when h is the total height of the wave in feet , and 2 ' = 8 V the velocity in feet per second . The height is the vertical distance ...
... height equal to that from the crest of the wave to the level of the water in repose . Approximately T V when h is the total height of the wave in feet , and 2 ' = 8 V the velocity in feet per second . The height is the vertical distance ...
Página 15
... 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 would agitate the water 18 inches below ...
... 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 would agitate the water 18 inches below ...
Página 18
... height and from 500 to 600 feet in length are occasionally encountered during heavy gales . On three occasions ... height from which it had descended . The mean height from which the water of a wave may be taken as descending is 18 THE ...
... height and from 500 to 600 feet in length are occasionally encountered during heavy gales . On three occasions ... height from which it had descended . The mean height from which the water of a wave may be taken as descending is 18 THE ...
Página 19
... height from the trough to the crest . Taking a wave 10 feet high , and the depth of water where it breaks , in ... height of 5 feet , or 21:35 tons , or 4-27 tons per foot super . That is to say , each wave would be capable of moving ...
... height from the trough to the crest . Taking a wave 10 feet high , and the depth of water where it breaks , in ... height of 5 feet , or 21:35 tons , or 4-27 tons per foot super . That is to say , each wave would be capable of moving ...
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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 clay coast coast-line composed concrete considerable constructed Crown 8vo denudation deposited depth derived direction distance dunes east effect entrance erected erosion estuary extends face feet high Felixstowe flints flood tide foot gravel groynes harbour headland heavy gales height high tides high water Humber Illustrations inches in diameter island jetty Kilnsea land length limestone littoral drift London Clay low groynes low water marshes mile wide Morecambe Bay 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 spit spring tides Spurn Point stones surface tidal timber varying wall washed waves breaking width wind Withernsea yards wide
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