What are the density flows, compensation flows, and wind sea currents

Wind and sea currents include: equatorial warm current, westerly drifting, and Japanese warm current.

Gulf Current, Brazil Current, East Australia Current, Madagascar Current, North Pacific Current, North Atlantic Current, Kuril Current, East Greenland Current; Compensating currents include: equatorial countercurrent, Peruvian cold current, California cold current, Benguela cold current, Canary cold current, Western Australian cold current; Density stream has: Strait of Gibraltar.

Ocean currents at the bottom.

Ocean currents at the bottom of the Kiel Canal, ocean currents at the bottom of the Bab el-Mandeb Strait, etc.

Density flow, compensation flow, and wind-sea current are the three main forms of ocean water body movement, and they have different characteristics and examples, respectively.

1.Density Flow: Density flow is the flow of a body of water that is formed due to the different densities of seawater.

For example, the Mediterranean Sea is characterized by high evaporation, high salinity, and high density, while the adjacent Atlantic Ocean has low sea density, thus forming density flows. The waters of the Mediterranean Sea flow from the bottom of the strait to the Atlantic Ocean, while the surface waters of the Atlantic Ocean flow into the Mediterranean Sea through the Strait of Gibraltar.

2.Compensating Flow: Compensating flow is the flow of a water body caused by the action of external factors such as wind, currents or tides, which cause the reduction or increase of seawater in a certain area of sea. For example, the Peruvian cold snap is a compensating current, which is triggered by compensation for the equatorial countercurrent.

3.Wind Current: Wind Current: Wind Current: Refers to the flow of a body of water that is formed due to the action of the wind. For example, the North Equatorial Warm Current and the South Equatorial Warm Current are formed due to the action of the trade wind belt, while the westerly drift is formed due to the action of the westerly wind belt.

The existence of these forms of ocean water movement allows the ocean water bodies to be fully mixed and circulated, which has an important impact on the global climate and ecosystems.

Wind and sea currents; Examples include westerly drifting, Pacific and North Atlantic currents, and North Indian Ocean currents.

Compensation currents, ocean currents in the middle and low latitudes are all compensation currents.

Density flows, such as both sides of the Strait of Gibraltar, both sides of the Bab el-Mandeb Strait.

As far as I know, there are only nine types of wind and sea currents.

1. Wind and sea currents.

Wind-born currents, also known as "wind-generated ocean currents", refer to large-scale water flows caused by the tangential force generated by winds on the sea surface. In deep-sea areas, surface wind-sea currents deviate 45 degrees from the direction of the wind, to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The flow velocity is related to the tangential force of the wind, the vertical turbulence coefficient and the geographical latitude of the location.

As the depth increases, the deviation of the flow direction gradually increases, and the flow velocity gradually decreases, until at a certain depth, the flow velocity is only about 4% of the surface flow velocity, which is called the "friction depth" (usually 100 200 m). In shallow areas, the deviation angle of surface wind currents from the wind direction is less than 45, and the smaller the depth, the smaller the deviation angle, and the flow direction is almost the same as the wind direction in the sea area with very small depths.

Some of the major near-surface currents in the world's oceans are wind-currents. For example, the southern and northern equatorial currents in the Pacific, Atlantic, and Indian Oceans are wind-currents caused by easterly trade winds in the region.

2. Compensation flow.

Compensating flow refers to the flow formed by the compensatory action of seawater. Due to the requirement of seawater volume continuity, when seawater flows to other places, it will inevitably cause seawater from other places to flow to that place to compensate for the loss of seawater there, and the seawater flow thus formed is called "compensation flow". The compensating flow that occurs in the straight direction of the lead is called the "up-and-down flow".

The phenomenon of increasing and decreasing water caused by the wind next to the mainland or island can form an up-and-down current. On the surface of the sea far from the mainland, when controlled by a powerful cyclone or anticyclone, an upwelling current can also be formed, an upwelling current at the center of the cyclone, and a downdraft at the center of the anticyclone. Compensation flow can also occur in the horizontal direction.

3. Density flow.

Density flow, also known as heterogravity flow, is a type of ocean current. In addition to being mostly found in estuarine areas, it is also common in adjacent ocean basins, due to the different temperature and salinity of seawater in various places, resulting in differences in seawater density, resulting in seawater flow.

For example, the Mediterranean Sea is evaporative, salinity, and dense, while the adjacent Atlantic Ocean is low, resulting in density flows, with the Mediterranean Sea flowing from the bottom of the strait into the Atlantic, and the surface of the Atlantic Ocean flowing into the Mediterranean Sea through the Strait of Gibraltar. The geostrophic motion caused by the pressure gradient caused by the difference in the density of seawater and the Coriolis force is commonly referred to as geostrophic flow in oceanography and is not classified as density flow.

Density stream classification

1. The flow of lighter fluids on it, such as the flow of fresh water into the sea.

2. Downward heterogeneous DC, also known as "undercurrent". Heavier fluids flow below, such as muddy water flowing into a reservoir or seawater flowing up the river bottom.

3. Medium heterogravity flow, three fluids of different densities, a layer between the two densities is inserted into the flow between them.

Compensating currents: Peruvian cold snap, Western Australian cold snap, California cold snap, Canarian cold snap, Benguela cold snap, Somali cold snap.

Density streams: Strait of Gibraltar, Suez Canal, Bab el-Mandeb Strait, Turkish Strait, Strait of Hormuz, Strait of Kattegat. (Needless to say, the surface and bottom flow of the seawater).

Wind Currents: North Equatorial Current, South Equatorial Current, Alaska Current, North Atlantic Current, Westerly Drift, Thousand Islands Current, East Greenland Current, Labrador Current, Antarctic Circulation, North Indian Ocean Monsoon Current. 1.Density flow.

Due to the uneven distribution of seawater density and the difference in horizontal pressure, when the horizontal pressure gradient force and the geostrophic deflection force reach equilibrium, a kind of seawater movement is called density flow. There are two kinds of density flow: one is the density flow caused by the uneven distribution of seawater density due to the evaporation, cooling and uneven distribution of precipitation; The other is that due to the uneven action of the wind on the sea surface, while generating wind currents, it also produces vertical circulation, causing the redistribution of sea water density and also forming density flows.

2.Compensation flowFor some reason, seawater flows out of a sea area, causing the sea level to fall, and the seawater adjacent to the sea surface flows into the area to replenish it, and this seawater flow is called compensation flow. For example, the California cold current, the Peruvian cold current, and the Benguela cold current are all compensating currents.

3.Wind and sea currents are also called "drifting" and "blowing streams".It is the horizontal movement of seawater produced by the direct action of the wind. The surface current systems of the world's oceans are mainly wind-swept currents in terms of their origins.

Compensating currents: Peruvian Cold, Western Australian Cold, Benguela Cold, California Warm.

Wind and Sea Currents: North Equatorial Current, South Equatorial Current, North Pacific Current, North Atlantic Current, Westerly Drift.

Density Current: A current that runs through the Strait of Gibraltar between the Atlantic Ocean and the Mediterranean Sea.

Wind currents: Under the influence of prevailing winds, seawater forms long-term, large-scale directional movements. For example, the North Pacific Warm Current (formed by the influence of the westerly wind belt), the westerly drift (formed by the influence of the westerly wind belt), and the Kuril Cold Current (formed by the influence of the polar easterly wind belt), etc.

Density flow: Due to the different sea densities in adjacent sea areas, surface water flows from less dense sea areas to sea areas with high sea density, such as surface currents between the Atlantic Ocean and the Mediterranean Sea, between the Red Sea and the Mediterranean, and between the Red Sea and the Indian Ocean.

Compensation Flow: Formed by the influence of prevailing winds and other factors, the sea water in the departure area flows away, the sea level is lowered, and the nearby sea water current is supplemented to form a compensation flow. For example, the Peruvian cold snap, the California cold snap, the Canary cold snap, the Somali cold snap, etc.

1. Wind and sea currents.

Warm currents in the north and south equators in the trade wind belt. The westerly drift in the westerly wind belt is separated by land in the northern hemisphere and is called the North Atlantic Warm Current and the North Pacific Warm Current, and in the Southern Hemisphere, it circles Antarctica and connects the three oceans (Indian Ocean, Pacific Ocean, and Atlantic Ocean). North Indian Ocean Monsoon Current (northeasterly winds blow counterclockwise in winter and southwesterly winds flow clockwise in summer.)

2. Compensation flow.

For example, the effect of cold water subsidence in the Arctic Sea will cause the warm current to compensate northward. For another example, near 60°-64°S in the Southern Ocean, due to the existence of the Antarctic divergence zone, the surface water flows away and the deep water rises here, and the rising water volume reaches 60 106 m 3 seconds, which is one of the areas with the largest compensating effect in the world's ocean.

3. Density flow.

For example, the Mediterranean Sea is evaporated, salinity, and dense, while the adjacent Atlantic Ocean is low, so density flows from the bottom of the strait to the Atlantic, and the surface of the Atlantic Ocean flows into the Mediterranean Sea through the Strait of Gibraltar.

Summary. Wind and Sea Current, Geographical Term· The stress of the wind on the seawater caused by the action of the wind, including the friction of the wind on the seawater and the pressure exerted on the windward surface of the sea, forms a stable ocean current.

What is the wind-sea current, density flow, compensation flow, and is the Kuril cold current a wind-sea current?

Wind and Sea Current, Geographical Term· The stress of the wind on the seawater caused by the action of the wind, including the friction of the wind on the seawater and the pressure exerted on the windward surface of the sea, forms a stable ocean current.

Density flow, also known as heterogravity flow, is a type of ocean current. The intrusion of a high-density fluid into a low-density fluid under a low-density fluid, mainly caused by static pressure caused by gravity and density differences.

A compensation current is a current that is formed due to the loss of seawater. It is caused by a stream of ocean water flowing to a place where there is a lack of seawater. Compensation flows are generally divided into two types according to the direction:

One is a horizontally compensated flow and the other is a vertically compensated flow. The latter is also known as upper-upflow and downflow, which includes upwelling and downflow.

The Kuril cold current is a wind-sea current.