the tidal cycle what forces cause the rising and falling of the ocean tides? how often does the tide...
TRANSCRIPT
![Page 1: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/1.jpg)
The Tidal Cycle
• What forces cause the rising and falling of the ocean tides?
• How often does the tide change?
• What environmental factors influence the height of the tides?
• What do the tidal flats look like at high tide?
• What do the tidal flats look like at low tide?
![Page 2: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/2.jpg)
What Causes the Tides?
Gravitational Pull from the Moon and Tidal Inertia Results in Tidal Wave that Rotates Around the Earth
![Page 3: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/3.jpg)
Changes in the angle of the Moon result in changes in the heights of high and low tides
![Page 4: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/4.jpg)
LUNAR DAY:
24 Hrs + 50 min
Result:
2 high tides
every 12 hrs + 25 min
2 low tides
every 12 hrs + 25 min
MOON
![Page 5: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/5.jpg)
TIDAL VARIABILITY: Lunar Tides > Solar Tides
Spring Tides = Alignment of Moon & Sun / High Amplitude Exchange
Neap Tides = Misalignment of Moon & Sun / Low Amplitude Exchange
![Page 6: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/6.jpg)
Low Tide @ the Overlook 1.6 ft. below MLLW
![Page 7: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/7.jpg)
High Tide @ the Overlook 7.0 ft. above MLLW
![Page 8: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/8.jpg)
Low Tide @ Sloughside Pilings 1.6 ft. below MLLW
![Page 9: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/9.jpg)
High Tide @ Sloughside Pilings 7.0 ft. above MLLW
![Page 10: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/10.jpg)
Low Tide @ Sloughside point 1.6 ft. below MLLW
![Page 11: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/11.jpg)
High Tide @ Sloughside Point 7.0 ft. above MLLW
![Page 12: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/12.jpg)
Low Tide @ the Overlook 1.6 ft. below MLLW
![Page 13: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/13.jpg)
High Tide @ the Overlook 7.0 ft. above MLLW
![Page 14: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/14.jpg)
Low Tide @ the Observation Deck 1.6 ft. below MLLW
![Page 15: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/15.jpg)
High Tide @ the Observation Deck 7.0 ft. above MLLW
![Page 16: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/16.jpg)
Locations and tide information for photos
• Low Tide (lower low) on June 7, 2004 predicted -1.6 @ 10:35am at Coos Bay mouth using OSU/Hatfield Marine Science Center Dock, Yaquina Bay, OR
• High Tide (lower high) on June 7, 2004 predicted 7.0 @ 5:35pm at Coos Bay mouth using OSU/Hatfield Marine Science Center Dock, Yaquina Bay, OR
• Photos taken June 7, 2004 at South Slough National Estuarine Research Reserve, Charleston, OR along the shoreline mid-estuary accessed from the Estuary Study Trail System. Low tide photos taken between 10:45am – 11:15am (photographer - Tom Gaskill)
• High tide photos taken between 5:45pm – 6:15pm (photographers - Tom & Gabriel Gaskill)
![Page 17: The Tidal Cycle What forces cause the rising and falling of the ocean tides? How often does the tide change? What environmental factors influence the height](https://reader030.vdocuments.mx/reader030/viewer/2022032723/56649d1a5503460f949efcb9/html5/thumbnails/17.jpg)
Real-time, Predicted, and Historic Tides are Available On-line:
TidesOnline
www.tidesonline.nos.noaa.gov