Why is the sea water different in depth and why is the color of the sea water different?

The vast majority of the ocean is blue, and if there is more suspended matter in the seawater, or other reasons, the color of the sea is no longer blue. For example, China's Yellow Sea, which is the estuary of the Yellow River in ancient times, has a large amount of sediment carried by the Yellow River into the sea, and the blue sea water is "dyed yellow". Although the Yellow River now pours into the Bohai Sea, the northern part of the Yellow Sea is connected to the Bohai Sea through the Bohai Strait, and it has to withstand the water injected by the Huai River, Guan River and other rivers, so the sea surface still has a light yellow color.

In the northwestern part of the Indian Ocean, the Red Sea, between Asia and Africa, is the warmest sea in the world, and is home to a reddish-brown seaweed that takes its name from the fact that it grows in large numbers throughout the year and turns the surface of the sea red.

In the Gulf of California in the northeastern Pacific Ocean, there are blood-red seaweed colonies in the south, and a large amount of red soil brought by the Colorado River in the north during the rainy season, and the sea water is reddish-brown, known as the Vermilion Sea.

The White Sea is a marginal sea of the Arctic Ocean, which is deep in the interior of northwestern Russia, and the Arctic Circle runs through the White Sea. Due to the high latitude, severe cold climate, vast ice and snow all year round, and the low organic matter content of the White Sea, the sea water is white, so it is called "White Sea".

On the surface of the Black Sea, there are fresh water inflows such as the Don River, the Dnieper River, and the Doe River, which are less dense; The deep layers of the Black Sea are highly saline water from the Mediterranean Sea, which is denser. A density leap layer is formed between the upper and lower seawaters, which seriously hinders the water exchange between the upper and lower water layers. The Black Sea exchanges water with the Mediterranean Sea through the Bosphorus and Dardanelles.

Because the strait is narrow and shallow, which greatly restricts the exchange of water between the Black Sea and the Mediterranean, the lack of oxygen in the deep layers of the Black Sea, the filth secreted by organisms in the upper sea water and the corpses after death sink to the depths to rot and stink, and a large amount of sludge and muddy water makes the sea black. In addition, the Black Sea region is often cloudy and rainy, and the storms are fierce, which adds to the feeling of blackness.

Red tides can also cause abnormalities in the color of the seawater. Red tide is a phenomenon in which plankton multiply and clump together suddenly and violently due to localized sea areas. The colors of red tides are varied, depending on the species of marine plankton that causes them.

Red tides caused by noctilucent insects are pink or brick-red, red tides caused by some diflagellates are green or brown, and some diatom red tides are yellowish-brown or reddish-brown.

In addition, the color of the ocean changes as the sun sometimes disappears into the clouds and sometimes shines through the clouds. The color of the ocean also depends on the height of the sun above the horizon.

Because the bottom of the sea is not flat, of course the color is different when viewed from above! Think with your brain!

Reasons: 1. The intensity of the scattering effect of the permeable water molecules on various wavelengths of light (referring to red, orange, yellow, green, cyan, blue, violet) in visible light (referring to the phenomenon that part of the light rays disperses and propagates from the original direction when the beam advances in the medium).

2. For short wavelengths (such as green, cyan, blue, etc.), its scattering effect is much stronger than that of light with long wavelengths (such as red, orange).

3. In addition, the strength of scattering is also related to the length of the optical path.

When the water layer is shallow, almost all wavelengths of light in the visible plexus imitation light can be transmitted, and the scattering effect is not significant. When the water is deep, the water appears pale blue-green due to significant scattering. The more air dissolved in the water, the greener it is.

When the water is deeper, it will appear dark blue or even black. This is why the water is blue when it is deeper.

seas around the world.

According to the International Hydrographic Bureau, there are 54 seas in the world, which is only the total area of the world's oceans. The depth of the sea is shallow, and the average depth is generally within 2000m.

Marine hydrological elements such as temperature and salinity are greatly influenced by the continent and have significant seasonal variations. The water color is low, the transparency is small, there is no independent tide and current system, the tide wave is mostly introduced by the ocean, but the tide rise and fall is often more significant than the ocean, and the ocean current has its own circulation form.

Deep means deep. Cautious.

Deep Basic Definition:

1. The distance from top to bottom or from outside to inside is large (as opposed to "shallow", 2, —3, (same): ploughing. Mountain. This yard is very.

4. Depth: The river here is only three feet. This room is one zhang wide, one zhang four.

5. Esoteric: from the shallow. This book is very difficult for beginners to understand.

6. Profound; In-Depth: Talk. The impact is very .

7. (emotional) thick; (Relationship) close: Ask for mercy. The relationship between the two is very .

8. (Color) Thick: Red. Green. The color is too .

9. It's a long time since the beginning: autumn. The night was already very old.

10, very; Very: Yes. Letter. Fear. Table sympathy. I feel this way.

Deep means deep.

Deep Basic Definition:

1. The distance from top to bottom or from outside to inside is large (as opposed to "shallow", 2, —3, (same): ploughing. Mountain. This yard is very.

4. Depth: The river here is only three feet. This room is one zhang wide, one zhang four.

5. Esoteric: from the shallow. This book is very difficult for beginners to understand.

6. Profound; In-Depth: Talk. The impact is very .

7. (emotional) thick; (Relationship) close: Affection. The relationship between the two is very .

8. (Color) Thick: Red. Green. The color is too .

9. It's a long time since the beginning: autumn. The night was already very old.

10, very; Very: Yes. Letter. Fear. Table sympathy. I feel this way.

: A large distance from the surface to the end or from the outside to the inside, as opposed to "shallow" such as deep water. Remote mountains. Deep. Abyss. Deep ravine. Deep. Deep.

There are two reasons for the depth of the sea, both of which are indispensable

First, the earth's surface is inherently uneven, and there is a lot of difference between the highest and lowest places, such as Mount Everest is 8,848 meters above the sea horizon, and the Mariana Trench is more than 8,000 meters below the sea horizon.

Second, there are very abundant water resources on the earth's surface, 70% of which are water. So much water is necessary for the formation of the sea, assuming that there is only 1% of the earth's surface water, then it is estimated that there will be no sea at all, at most a few lakes, and the rest are mountains and valleys.

The depth of the sea is that the distance from the surface to the end or from the outside to the inside is large, suggesting difficulty.

Opposite to "shallow", such as deep water, deep mountains, deep grinding sedan groups, abyss, deep ravine, deep sea sail shortage, deep ploughing, etc.

Reasons for the depth of the sea:

1. The surface of the earth is inherently uneven, and there is a lot of difference between the highest and lowest places, such as 8,848 meters above the Pyeongchang Luwei line of Mount Everest, and more than 8,000 meters below the sea horizon in the Mariana Trench.

2. There are very abundant water resources on the surface of the earth, 70% of which are water. If there is only 1% of the earth's surface water, then it is estimated that there will be no sea, at most a few lakes, and the rest are mountains and valleys.

Reasons for the depth of the sea:

1. The surface of the earth is inherently uneven, and there is a lot of difference between the highest and lowest places, such as 8,848 meters above the horizon of Mount Everest, and more than 8,000 meters below the Mariana Trench.

2. There are very abundant water resources on the surface of the earth, 70% of which are water. Assuming that there is only 1% of the earth's surface, then it is estimated that there will be no sea, at most a few lakes, and the rest are mountains and valleys.

It can be combined as: because the seabed is uneven, there are cliffs, and there are canyons, so the sea water is deep and shallow, and the color is different from the sea surface.

The first half of the sentence writes about the situation of the seabed (high and low reading Xiaotong uneven), and the second half of the sentence writes about the change of sea water color (deep and shallow), here it can be found that it is the reason for the uneven height of the seabed that causes the change of sea water color, and the relationship between the sentences before and after is causal. So.