aice marine unit 1

When water mingles with other elements, it is known as a solvent.

Water is made up of polar molecules.

When water sticks to itself, it is cohesion. When water sticks to other objects, it is adhesion.

Water’s solid form is less dense than its liquid form.

When water is exposed to light, it is absorbed and is converted to heat.

The pH of seawater is important because of enzymes, metabolism, and growth (all of the above).

Salinity is measured in parts per thousand (ppt).

Isopycnal stays the same with depth.

The average salinity is 35 parts per thousand.

The salinity at poles is higher, and at the equator, it is lower due to precipitation.

Gases in biological processes include oxygen and carbon dioxide.

Carbon dioxide is the most soluble gas in seawater.

Bicarbonate ions chemically react to seawater and acts as a buffer.

Nitrogen is not a greenhouse gas.

D= m/v

Two major factors of density are salinity and temperature.

Air and water movement combine to make the Coriolis effect.

A generating force is wind.

30 degrees North, 30 degrees south is dry air.

Deep water waves. Deeper than half.

Wind is referenced from where it comes from. Example: North Wind.

Thermocline is due to temperature, halocline is due to salinity.

A distance (fetch) affects the way wind blows.

Tsunamis are shallow water waves.

There are 2 high and low tides.

Diurnal tides are unequal in height, but semi-diurnal tides are equal in height.

A lunar day is equivalent to 24hr and 50min. When would the tide be the next day? 50 minutes later than the previous tide.

Neap tide -> when the sun and moon are at right angles to one another

Falling tide -> when the water level is decreasing

Incoming tide -> when the water level is rising

The ions most abundant in seawater are NaCl, CaCO3, Mg, and K.