GEOS 212 1st Edition Lecture 19 Outline of Last Lecture LECTURE 18 OUTLINE Tsunami Tides Global Warming 26 March Hurricane Movie Time Patterns and hazards Hurricane intensity through time increasing related to global warming Connections to El Nino La Nina Tsunami caused by up down movement of water most commonly earthquakes in subduction zones 2004 Sumatra earthquake tsunami 2011 earthquake tsunami in Japan 1700 Tsunami along the coast of Oregon Washington and California Next One Hazardous aspects of tsunami o Travel Fast 500 mph in deep water o Hard to track in deep water Need Early Warning System most in Pacific o Height builds in shallow water o Many waves o First one commonly a low water recedes o Largest one can be any one o Earthquake that causes tsunami can be far away o Affects huge area or ocean margin o Rare so people forget about hazards Tsunami from space impacts volcanic eruptions Tsunami heights for 2004 Indonesian EQ Evidence for large EQ Tsunami in 1700 in Pacific NW of U S When will the next one happen These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute TIDES another dynamic process actually a wave that affects all oceans Main force gravitational pull from the moon creates bulge in earth Smaller force gravitational pull from the sun Earth Moon Sun system creates 28 day cycle Big range spring tides full moon new moon Small range neap tides half moon Tide chart below for 28 days spring neap tides full new half moon phases 2 Hi 2 Lo tides per Outline of Current Lecture LECTURE 19 OUTLINE Intro to Marine Life 7 April Part 3 Life in the Oceans Controlled by processes in Part1 and Part 2 Part 1 Solid Earth Processes Make destroy ocean basins Rocks seds on ocean floor Seawater Chemistry Part 2 Atmosphere Ocean Processes Oceans are dynamic o Waves o Currents o El Nino La Nina o Hurricanes o Tsunami o Tides o Global Warming Huge energy transport Oceans well mixed Variations in o Temperature o Pressure o Salinity o Sunlight o Gases Earth is very dynamic planet lots of diverse physical environments Marine organisms are also very diverse and dynamic Connection Adaptation Evolution Physical factors that control form function of Life List at least 8 Three components of life 1 Organic materials Fluids mostly H2O salt Na Cl Fe K P Gases plants need CO2 animals need O2 Tissues mostly C H O some Ca Si K Fe Mg 2 All organisms need energy Photosynthesis CO2 H2O Organic material O2 energy from sun Respiration Organic material O2 CO2 H2O energy from food also from sun Chemosynthesis CO2 H2O H2S Organic material O2 energy from earth s heat 3 Information required to assemble bodies and to function DNA is the blueprint for how organisms grow and function Where did information originate Big Bad Table showing main events in life and Earth history Current Lecture
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