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Oceanography

Oceanography, also called marine science, is the study of oceans. It includes the study of physical oceanography, marine chemistry, marine geology, and marine biology. Areas covered in oceanography are the shape, depth, and distribution of oceans, and also their composition, life forms, ecology, and water currents, as well as their legal status. If you would like to know more or share your knowledge about oceanography, ask and answer questions here! Includes questions related to the study of Earth's oceans and seas.

1,839 Questions

What is the largest known horizontal distance between high tide shoreline and low tide shoreline?

The tidal range is the vertical difference between the high tide and the succeeding low tide.

Do waves always travel in the same direction as currents?

No. If an earthquake happened in mid-sea then there would be a ring effect. If you were on a coast, waves normally come in and then move back out again.

How long does it take to go from one high tide to the next high tide?

On average, high tides are separated by about 12 hours and 24 minutes. The 12 hours is because of earth's rotation, and the 24 minutes is compensation for the movement of the moon. So low tides would be about half way through those 12 hour 24 minute periods.

How did the Grand Canyon become a World Heritage Site?

The text of the World Heritage Site Convention specifies that a site is worthy for CONSIDERATION of such designation (ONLY if, of course, the government controlling the site requests such a consideration) if the site consists "of physical and biological formations or groups of such formations, which are of outstanding universal value from the aesthetic or scientific point of view". If the Grand Canyon does not meet that criteria, then no spot on this planet does so.

The U.S. government requested this designation, and UNESCO granted it. The U.S. government could, of course, withdraw this designation at any time; and UNESCO would have no choice but to remove it.

How does the temperature of water effect the dissolved oxygen?

Well, dissolved oxygen impacts water quality because if the level of the dissolved oxygen is too low then organisms can die.

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That is okay, but I want to what dissolved oxygen tests for.

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For the water quality are tested:

- total oxygen demand (TOD)

- biochemical oxygen demand (BOD)

- chemical oxygen demand (COD)

- sometimes, carbonaceous biochemical oxygen demand (CBOD)

For details about the analytical procedures I recommend you to read a book or a collection of analytical methods for water, searching in a library or searching on the Internet.

What is the life expectancy of a box jellyfish?

According to sources, the life span in the wild is less than a year. very lucky jellyfish, although, can live for maybe 16-18 months. mostly those lucky ones are the box jellyfish because they are so deadly to all...

What is saturated zone of groundwater?

The water table sits on top of the soil zone.

Places where rivers pour fresh water into the ocean have low salinity?

Estuaries and river deltas are areas where rivers pour fresh water into the ocean, resulting in lower salinity levels. The mixing of freshwater with saltwater creates a brackish environment suitable for unique ecosystems to thrive. These areas are important breeding grounds for many marine species due to the nutrient-rich waters.

Where is the location of the Pacific Ocean?

The Pacific Ocean is located between the continents of Asia and North America. It borders Alaska and Antarctica. It is the largest ocean on planet Earth.

What causes the patterns of surface currents in the ocean?

The Earth rotating and its tilt of the axis forms the oceans' tides and currents.

Is an ice caps water fresh water or salt water?

Ice caps are made of fresh water. When this ice melts into the ocean, it contributes to the salinity of the water in that area.

What is the cause of a hadley cell?

The Hadley cell is caused by the combination of the Earth's rotation and the unequal heating of the Earth's surface. As warm air rises at the equator, it moves towards the poles and descends around 30 degrees latitude, creating a circulation pattern known as the Hadley cell. This process is a result of the differential heating of the Earth's surface by the Sun.

What do oceans contain?

Salted water and living organisms.

Why sea looks blue?

the sea looks blue as it reflects the colour off the sky;which is blue.

in actual fact, the sea-or any water-has no colour of its own

so if the sky was green, the sea would appear green too...

why the sky is blue... dont ask me!

:)

How much percentage of salt in pacific ocean?

The average salt concentration in the Pacific Ocean is around 3.5%, which is equivalent to 35 grams of salt per liter of seawater. This percentage can vary slightly in different regions of the ocean due to factors like evaporation rates and freshwater input from rivers.

What is a palaeo-oceanographer?

A palaeo-oceanographer is someone who researches the history of the ocean.

What is the salinity of the Great Salt Lake?

The salinity of the Great Salt Lake varies, but is on average about 12%.

How do tides affect the weather?

its very simple...it effects the moon which has something to do with the sky witch has something to do with the weather!!! If you don't get it you are STUPID

The above answer from a previous user is ironic, in that that previous user doesn't get it either, and therefore most be "stupid" by their own reasoning. They have themselves affected an attitude which effected a negative atmosphere leading to stupidity as an affect and hostility as an effect. (Note: the preceding sentence both points out the original answerer's incorrect use of "effect" and simultaneously makes grammar nazis heads explode.) First, tides do not "effect" [sic] the moon, nor do they affect it. At least not lunar tides. Terran tides (the gravitational effect of the Earth on the moon) almost certainly affect the geology of the moon but any reciprocal affect on the Earth's weather due to recursion is negligible. While lunar tides most certainly effect changes on the atmosphere, due to the highly fluid nature of the gaseous portion of the atmosphere (since from a certain perspective the oceans are also atmospheric phenomena), the strongest effects of the moon's gravity occur on the oceans, seas and lakes. This causes a "churning" motion in large bodies of water, and depending on the temperature of the water either converts heat into the air or absorbs heat from the air, thus causing expansion or contraction in the air and thus changing the pressure fronts.

Is there a place where salt water and fresh water meets but does not mix?

Nope. May sound strange although one is more dense than the other. They mix , not merge.

How do ocean currents carry heat around the globe?

Oceans have a constant heating and cooling cycle to maintain the Earth's temperature. They absorb carbon dioxide from the atmosphere which reduces the temperature. They all emit heat that is absorbed from sunlight increasing the temperature.

What makes the ocean so blue in color?

See the sky reflects its blue color so it appears to to u as shades of blue Hey that rhymed! :D

Are tides at their highest during neap tides?

No

Neap tides are when the sun,earth, and moon form a right angle. This makes the the water on earth be pulled towards the sun and the moon. causing the tides to be very low.

Spring tides are when tides are the highest because the earth,sun,and moon are in a line,causing very high tides.