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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

Why do phytoplankton stay at the surface of the ocean?

Phytoplankton stay at the surface of the ocean to access sunlight for photosynthesis, which is vital for their growth and survival. Being closer to the surface also allows them to take in nutrients and carbon dioxide more efficiently, which are needed for their metabolic processes.

What is low salinity?

Low salinity refers to the condition of water having a lower concentration of dissolved salts compared to seawater. This can occur in areas where freshwater input dilutes the salt content or due to specific environmental conditions such as rainfall or melting ice. Low salinity levels can have impacts on aquatic ecosystems and influence ocean circulation patterns.

What is an octopus locomotion?

It uses its 8 tentacles and thrashes them to propel through the water, like if you swam moving your arms to the sides

What is a dodge tide?

This is a local South Australian term for a neap tide with minimal rise and fall over the course of a day or two. While very 'flat' neaps occur in a number of locations worldwide, the term 'dodge' is used only in South Australia. At the time of neap tide when there is no rise or fall in water over the course of a day, the water still rises and cause small tide during the day, is then impossible to tell that what would be the particular period has presumably gained for it its name 'The Dodger'.

Water is moved toward shore by a wave true or false?

True. Waves carry water towards the shore by transporting energy from the open ocean to the coastal areas.

Where is the warmest ocean temperature in the world in January?

The Southeastern Florida images have dimensions of 512x512 pixels at a spatial resolution of 1.5 km x 1.3 km, covering the area 24° N - 31° N and 82° W - 76° W. These images are useful to examine the details of sea surface temperature patterns off the eastern coasts of Florida and the northern Bahamas Islands. Of particular interest in defining this region was the Cape Canaveral upwelling region, where the Gulf Stream separates from the coast as it moves to the north-northeast into the Atlantic Ocean. The archive is arranged by year and month. Links appearing in gray-on-gray text have no data available for that particular month.

Would there be a longshore current in a lagoon behind a long sandbar?

Yes, there can be a longshore current in a lagoon behind a long sandbar as wave energy can cause water to move parallel to the shoreline within the lagoon. The presence of the sandbar may alter the strength and direction of the current, leading to varying flow patterns within the lagoon.

What part of the water is affected by a wave in deep water?

The water molecules of a deep-water wave move in a circular motion. The diameter of the motion decreases with the distance from the surface. The motion is felt down to a distance of approximately one wavelength, where the wave's energy becomes negligible.

What is the Coreolis Affect?

The Coriolis effect is the apparent deflection of moving objects (such as air and water) on the surface of the Earth caused by the Earth's rotation. In the Northern Hemisphere, objects are deflected to the right, while in the Southern Hemisphere they are deflected to the left. This effect influences prevailing wind patterns and ocean currents.

Are tsunamis rare?

Tsunamis are not considered rare events, but their occurrence can vary depending on the location. Regions along the Pacific Ring of Fire, where tectonic activity is high, are more prone to tsunamis. While small tsunamis are common, large and destructive tsunamis are less frequent.

What is hypersaline?

Hypersaline refers to environments or bodies of water that have a higher-than-normal concentration of salt. This high salinity can be detrimental to most forms of life and can lead to unique ecosystems with specialized organisms that have adapted to the extreme conditions. Examples of hypersaline environments include salt flats, salt marshes, and salt lakes such as the Dead Sea.

Just below the ocean's pelagic zone lies the?

mesopelagic zone, which is also known as the twilight zone. It is situated between the epipelagic zone above and the bathypelagic zone below. The mesopelagic zone receives only faint sunlight, leading to a dimly lit environment with unique adaptations by marine organisms to survive in such conditions.

What category hurricane is most common?

A category 1 hurricane is the weakest category of hurricane, with wind from 74 mph to 95 mph

What is the ocean zone where waves and currents mix the water?

The ocean zone where waves and currents mix the water is called the "surface zone" or "mixed layer." This layer is characterized by turbulent mixing caused by wave action and wind-driven currents, resulting in the uniform distribution of temperature and salinity. It is critical for the exchange of gases between the atmosphere and the ocean.

Northern major continent group after pangaea split?

After the split of Pangaea, the major northern continents formed were Laurasia and Gondwana. Laurasia included present-day North America, Europe, and Asia, while Gondwana included present-day South America, Africa, Antarctica, Australia, the Indian subcontinent, and the Arabian Peninsula. These continents eventually shifted and broke apart further to form the continents we see today.

Why will the moon no longer affect tides one day?

The moon will no longer affect tides in the distant future when it moves away from Earth due to tidal forces. As the moon continues to recede from the Earth, its gravitational pull on Earth's oceans will weaken, resulting in smaller tidal effects. However, this process is very gradual and will take millions of years to significantly impact tidal patterns.

True or false the largest phylum of animals is mollusks?

False. The largest phylum of animals is Arthropoda, which includes insects, spiders, and crustaceans. Mollusks belong to the second largest phylum, Mollusca.

How many bays in the world?

There is no definitive answer to how many bays exist in the world as bays are natural geographical formations scattered across various continents and countries. The number of bays is constantly changing due to factors like erosion, sea level rise, and geological processes.

What is the difference between a deep water wave and a shallow water wave?

The basic differences are that the deep water wave "spreads out" and moves very quickly across open water. Wave height is not "significant" in these waves. When the wave reaches shallow water, however, it "slows down" at the leading edge. This causes the wave to "bunch up" and increase in height, even to dangerous proportions. A 20 or 30 metre high wave would devastate a shoreline, but would be hardly noticeable if it passed beneath a ship in deep water.

What is the lunitidal interval for Chichester harbor entrance?

The lunitidal interval for Chichester Harbor entrance is approximately 4 hours and 45 minutes. This represents the time difference between when the moon is directly overhead and when high tide occurs.

Producers that live in water?

Plankton, seaweed, polyps they are the creatures that make up coral :-). Hope these were the kind of suggestions that you were looking for. You could say Humans produce water, but its just urine, so. :P

What type of glacier is the perito moreno?

The Perito Moreno Glacier is classified as a tide-water glacier, which is a type of glacier that flows down a valley and reaches the ocean, where it forms a floating ice tongue. The glacier periodically calves icebergs into the water, creating a spectacular display of ice breaking off.