OCEANS Hypsometric Curve EUSTATIC SEALEVEL CONTROLS LOCAL SEALEVEL
- Slides: 59
OCEANS
Hypsometric Curve
EUSTATIC SEALEVEL CONTROLS
LOCAL SEALEVEL CONTROLS • Subsidence • Tectonism (mtn building) • Isostatic adjustment
GROUP PRS Why is sealevel in Sitka falling? A. Mountain building B. Distance to equator C. Glacial melting D. Mid-ocean spreading E. Local subsidence
Greenland ice melts = 5 m rise
What impact would a. 5 -1 m sealevel rise have on the US? Given that we may not know how much it will rise for another 20 -30 years, what if anything, do we do now?
OCEANS TIDES
Spring Tides Neap Tides
PRS If the moon was twice as far away the tides would be A. Larger B. Smaller C. No change
Tides affected by shoreline shape
Tides affected by latitude
PRS If the Bay of Fundy was on the equator how would the highest tides be affected? A. Higher B. Lower C. No change
WAVES
Generated by wind speed, duration, fetch Wavebase = ½ wavelength
Shore profile is dynamic equilibrium
Wave Refraction waves bend toward slower medium
Wave energy focused on headlands = erosion Wave energy dispersed in bays = deposition
Wave refraction generates longshore current
Creates Spits Alligator point
PRS Which way is the longshore current flowing? A. To the North B. To the South B. C. To the East D. to the West E. Can’t tell
Barrier Islands How formed? • Cutoff Spit • Drowned Dunes • Exposed Sand Bar
PRS Overwash causes barrier islands to move in which direction? A. Toward shore B. Toward the ocean B. C. Parallel to the coast
Coastal Engineering Seawalls
Beach Armor – Rip-Rap
Groins, jetties
PRS Which way is the longshore current flowing? A. To the North B. To the South C. To the East D to the West E. Can’t tell
Beach Nourishment
GROUP PRS Why has the southern part of the island migrated onshore? A. Change of wave direction B. Development on southern island C. Rise in sealevel D. Inlet jetties E. Change in longshore current
Rip Currents
Convection
ITCZ = Inter Tropical Convergence Zone - Low pressure Rising air cools and rains
Note the pronounced shift in the ITCZ over India. What causes this?
PRS The shift is caused by A. Plate tectonics B. C. Atmospheric CO 2 C. E. Human interference B. Eccentricity in earth’s orbit D. Asia
Coriolis effect
Convection cells and zonal wind flow
- General controls vs application controls
- He who controls the past controls the future
- A think local act local multicountry type of strategy
- A "think local, act local" multidomestic type of strategy
- Strategies for competing in international markets
- Local vertical local horizontal frame
- Sigmoidal vs hyperbolic curve
- S curve and j curve
- Balancing cusp
- J curve vs s curve
- Oceans 12 matsui
- Human impact on oceans
- All oceans are connected
- 5 oceans
- How did the oceans form
- Outline map of continents and oceans
- Oceans arena
- Importance of marine life
- Shape of oceans
- Continents and oceans
- 7 continents and 5 oceans name list
- "gyre and plastic pollution"
- 5 branches of oceanography
- Drilling for oil and gas can interrupt migration in
- Oceans apart day after
- Continents and oceans jeopardy
- What are the 7 continents and 5 oceans
- Oceans in the eastern hemisphere
- Moraine
- Importance of oceans
- Tombolo
- The prime meridian runs through which 3 continents
- Oceans 7/11
- The four oceans
- Continents and oceans jeopardy
- Water oceans
- What's the 5 oceans
- Continent vocabulary
- Makemegenius
- Ocean floor features
- 5 oceans in the world
- Which percentage of earth’s oceans is dissolved salts?
- Chapter 15 earth's oceans study guide answer key
- What are the five themes of geography
- Where does deposition occur
- Characteristics of oceans
- Oceans and continents song
- Organizational controls provide
- Chapter 10 driving in rural areas
- Who is responsible for providing specialized work footwear
- Infosec management models
- What are the types of hazard controls
- Ccc compressor
- Food safety controls
- Internal control revenue cycle
- The expenditure cycle
- Ecp-1
- Quality controls for conventional techniques
- The pcv system controls which exhaust emission(s)?
- What controls the operation of a pulse-wiper system?