Who’s Who in Ocean 101? Majority of your classmates grew up in western WA, but…. Alaska, Arizona, California, Colorado, Connecticut, Illinois, Maryland, New Hampshire, New Mexico, Oregon, Wisconsin, Tennessee, Texas, Utah Canada, China, Hong Kong, Indonesia, Korea, New Zealand, Philippines, Viet Nam Just as many seniors & juniors as freshman The most popular reason for taking the course was to fill NW requirement (and it was one of the only classes open) …most of you wrote that you like to play in the water and are intrigued by the ocean
Course websitehttps://catalyst.uw.edu/workspace/mrasmuss/16171/UW Net IDAll course materials available on the siteRegister for the cruise through the “Extra Credit” viewCheck daily for announcements
The importance of oceanography to the people and economy of the Pacific Northwest Water, water everywhere: identifying the waters that surround WA state What and where is the Puget Sound (PS)? How do we use WA waters, especially Puget Sound? How is the Puget Sound important to the economy of our region? Why am I seeing all those advertisements about the health of Puget Sound on TV? www.pugetsoundstartshere.org
Where is the Puget Sound (PS)? What is the approximate latitude of Seattle? Longitude? N W
Strait of Juan de Fuca Seattle Puget Pacific Sound Ocean Olympia Western Washington from space Focus on Washington Waters Image: http://www.worldmapsonline.com/SatPosters/ WashingtonSpace.jpg
Whidbey BasinAdmiralty Inlet Main Basin Hood Canal South Sound Puget Sound from Space Where is Puget Sound?
What is the Puget Sound? Sound? Fjord? Estuary? Sound: complex of inland waterways Fjord: system of flooded glacial valleys Estuary: semi-enclosed coastal (salty water) body of water with one or more rivers or streams flowing into it
What is the Puget Sound? How was it formed? What time scale? Millions of years ago (MYA) Mountains forms Tens of thousands of years ago Glacier advance and retreat Five thousand years ago beaches formed Weather, waves, gravity & humans continue to shape beaches
How was the Puget Sound formed Many millions of years ago (MYA) – topic revisited week 9 Earth’s surface divided into shifting slabs or plates Plates move relative to one another What causes plate motion? What happens at plate boundaries?
How was the Puget Sound formed? MYA (2.4) to tens of thousands of years ago 20,000 years ago PS was under a mile of ice Covered everything between Cascades & Olympic mountains Glaciers advance from Canada and retreat http://exhibits.pacsci.org/puget_sound/ graphics/ps_glaciationsm.mov Heavy pressure Meltwater creates streams and lakes Ice dam breaks creates PS
What did the glaciers leave behind? Bulldozed & scattered material Weather, waves, gravity & humans continue to shape Puget Sound Pressure etched on beaches bedrock Layers of soils and rocks Glacial rocks Glacial scrapes Glacial layers
How do people use Puget Sound? Home to 4 million people (2/3 state population) Recreation Boating: yachts, sailing, kayaking Fishing: over 211 fish species found Tide pooling and beach combing Commercial industries and shipping Sewage
How is the Puget Sound important toour economy? Puget Sound economic activities generate $20 billion annually Tourism Commercial Fishing Shipping Ship Building and Industry
Why am seeing all thoseadvertisements about the state ofPuget Sound on TV? www.pugetsoundstartshere.org Frontline “Poisoned Waters” clip http://www.youtube.com/watch?v=cm1lbwz3Dz8
Problem below the surface Each day 140,000 lbs of toxic chemicals enter the Sound Polychlorinated biphenyls (PCBs), lead, zinc, copper, petroleum 75% of those chemicals enter by stormwater runoff 549 streams, rivers and lakes with poor water quality ratings Mammals and fish have “among the most PCB- contaminated on the planet” Source: pugetsoundstartshere.org
Puget Sound is in trouble. You can help. A few simple changes make a big difference In your yard: use fertilizers and pesticides sparingly, or just use compost With your car: take your car to a commercial car wash and have oil leaks fixed Around your dog: pick up poop and bag it At home: use natural cleaning products, turn off the lights, turn down the heat, take shorter showers