Marine 9-11

Bathymetry

The mapping of the sea floor.

Abyssal Plain

Flat, featureless plain

Why is it important we understand and map the seafloor?

Track marine life, observe effects of human behaviour, shipping routes.

What are two methods for mapping the seafloor?

Plumb lines and sonar

Where is the solar radiation from the Sun absorbed by the ocean?

By the top layers of the ocean

What ways do we use satelites in marine science?

Locations of buoys, ships, marine animals emitted from sea surface.

Isolines

A line of constant value on a map

Isotherms

A line that connects all points of equal temp. on a map.

What are three physical characteristics buoys collect from the ocean?

Sea temp., wave height, salinity

How can we describe currents?

Large water masses that move at a certain speed and direction.

Who do we compare data from buoys and satellites?

To try to make accurate predictions.

The ocean is constantly moving.

True

In the ocean, as the depth increases, temperature????

Decreases

Can objects in the Pacific drift all the way to Europe?

Yes

Two or more storm systems converge to create a larger storm. True or False

True

Why is it important that we immediately put fish on ice when it's been caught?

So parasites don't crawl out of the fish guts.

Meteorology

the study of the atmosphere

Evaporation

Cools the surface of the ocean

What circulation pattern does a hurricane follow in the Northern Hemisphere?

Counter Clockwise

As the category of hurricanes increase the wind and damage will increase/decrease

Increase

What are the three names of tropical cyclones?

hurricane, cyclone, typhoon

When it's hot and humid there is more / less water present in the air

More

Jet stream

A narrow band of strong westerly air currents in the N and S hemispheres

The boundary of seperate air masses

Fronts

Climate

Global patterns of weather overtime.

Dynamic Soaring

Conserving energy, being in flight for hours using wind for direction and speed

Wind

Movement of air from high to low pressure

Gyre

Determined by wind's push and the shape of the continents

Air Pressure

Relative weight of air molecules pressing down on Earth's surface

Be able to name the two types of SONAR, how the SONAR types are use and what images they capture. Be able to explain how this information is beneficial to us as we study the seafloor.

Active: Sends out pings

Passive: Receives sound echoes without sending out pings. Both give accurate maps of the sea floor.

Hurricane

Huge, low pressure system with rain and thick clouds

Buoy

Used to study physical characteristics of H20.