WQ - Ocean General Info
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41 Terms
What % of all water is ocean?
What % of the Earth’s surface area is ocean?
All water: 97%
Surface area: 70.8%
How much ocean water is there?
~332,500,000 cubic miles
Name every ocean.
Pacific
Atlantic
Indian
Arctic
Antarctic
Biggest ocean by surface area and volume
Pacific
Surface area: 63.8 million square miles
Volume: 171 million cubic miles
Hottest and coldest oceans and why
Hottest: Indian ocean. Does not connect to Arctic ocean (so very little polar water received); sits at equator
Coldest: Arctic ocean. Receives little direct sunlight, and a good portion of what does hit, is reflected away via the albedo effect.
About ocean’s:
Specific heat
Thermal inertia
Specific heat: Lower than freshwater; the salt
Thermal inertia: Lower than freshwater;
The ocean as a heat sink
Heat sink:
How and why is the ocean so salty?
The ocean as a gas reservoir
Mariana Trench
Phytoplankton vs zooplankton
Average depth of ocean:
Deepest ocean:
Shallowest ocean:
Why does sound travel quicker in the ocean?
Top 3 most abundant life forms in ocean
What causes currents?
How do tectonic plates move?
Coriolis effect
Major ocean currents
Sea
Point Nemo
Oceanic basins
Cyclone vs hurricane
How do hurricanes form?
How do earthquakes form?
Mid-ocean ridges
Types of waves
Breakwaters
Dykes
Seawalls
Levees
Why is the ocean largely blue?
Swell
Fetch
Refraction vs diffraction
Constructive interference
Wave shoaling
Why is stratification less pronounced on the ocean?
Freezing point of sea water and why
Freezing: -1.8C (28.4F), which is lower than the usual 31F.
“Freezing point depression” (when added solutes drop freezing point) Due to higher salinity. The salt molecules arrange themselves around water molecules, preventing them from interacting and forming ice crystals. So, colder temps needed.
Average density of sea water
1.025kg/L
Stokes drift
Ekman spiral
Thermohaline circulation and effects on CO2
At equilibrium, how much of its most abundant gases are in the ocean?