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18 - 1 Source NASA R78ERS OCEANS AND COASTS 7nstructor...

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ERTH%404(14 Rivers, oceans and coasts 1 R78ERS, OCEANS AND COASTS 7nstructor: Claire Samson, Ph.D., P.Eng. Source: NASA
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ERTH%404(14 Rivers, oceans and coasts % Reading assignment G Please read HehewJs book to complement the material presented in this lecture: Chap. 14-15 in P rd Edition Chap. 1P-14 in % nd Edition
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ERTH%404(14 Rivers, oceans and coasts P Lecture objectives G To be able to summariSe the different processes of the hydrologic cycle G To relate stream hydraulics to detachment, transport and deposition of sediments G To be aware of different flooding scenarios and associated mitigation measures
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ERTH%404(14 Rivers, oceans and coasts 4 Lecture objectives G To understand the mechanisms of oceanic circulation G To be able to describe the continental margin topography from the shoreline to the abyssal plain G To know the characteristics of wind-caused ocean waves G To be able to describe groins, jetties and breakwaters and their relation with longshore currents
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ERTH%404(14 Rivers, oceans and coasts 5 Contents G Hydrologic cycle G Streams and rivers V Stream hydraulics V Detachment, transport, deposition V Flooding G Oceans and coasts V Oceanic circulation V Continental margin topography V Waves and currents V Coastal morphology V Coastal engineering structures
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ERTH%404(14 Rivers, oceans and coasts Y Hydrologic cycle
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ERTH%404(14 Rivers, oceans and coasts 7 [lue planet G [lue colour of our planet is unique in the solar system V Oceans cover 70] of the EarthJs surface G Liquid water has only been identified on Earth V 8enus is so hot, water only present as vapor V Water ice has been identified on the ^oon and ^ars
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ERTH%404(14 Rivers, oceans and coasts _ Statistics G Total volume of water on Earth = 1.36 billion km 3 V 97.20 % seawater V %.15 ] glacier ice V 0.Y% ] ground water V 0.0P ] inland seas, lakes, rivers, moisture in soil, atmosphere 0.0001% in rivers and streams
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ERTH%404(14 Rivers, oceans and coasts 9 Hydrologic cycle G The hydrologic cycle describes the constant exchange of water between oceans, atmosphere and continents V Energy derived from the Sun V The atmosphere provides a link between the oceans and the continents V Water is a key factor in several geological processes
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ERTH%404(14 Rivers, oceans and coasts 10 Hydrologic cycle G Processes involved in the hydrologic cycle V Evaporation and precipitation V Runoff and infiltration V Transpiration V Sedimentation and volcanism
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ERTH%404(14 Rivers, oceans and coasts 11 Ref.: Abbott, P.L. %004. Natural Disasters. 4 th Edition. Fig. 1.19. Shown with permission. Precipitation Evaporation
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ERTH%404(14 Rivers, oceans and coasts 1% Hydrologic cycle G Evaporation and precipitation V Over oceans: evaporation b precipitation V Over continents: evaporation c precipitation Liquid water Water vapor d Energy Evaporation Precipitation
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ERTH%404(14 Rivers, oceans and coasts 1P Ref.: Abbott, P.L. %004. Natural Disasters.
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