Why is the ocean blue, especially in the deeper area?

Question

in the deeper portion, tne ocean turns blue, while if its near the shore, its color green, but when u looked down, at the bottom part, the sand is not color green but somewhat yellowish or white.

Answer 1

Someone told me about this not so long ago...

Its where the Sun reflects on the water or something for the sea

and

its green nearer the sand.. cus the sands yellow the seas blue so both colours mix together to make green

(dont reli make sense)

Answer 2

Water has no colour!
It is the reflex of the blue skies which makes it look blue and this will vary a lot according to the weather (making it darker or clearer), the amount of water (revealing its deeper or shallow because of the amount of light that goes through) and if its close to land (usually greener in the shores due to vegetation, ground reflection, shadows, etc.). It is also green near sand due to the coulour mix of sky blue with sand colour (blue+yellow+green).
So it's all about light and our Sun, Moon and sky.
Sea water is easier to reflect as it contains a lot of minerals as well!

Answer 3

Why is the ocean blue?The ocean often looks blue because sunlight shines on tiny particles suspended in the water. Along the shores of some areas, however, the water looks green because the blue water is mixed with yellow pigments present in floating plants.
Some oceans exhibit other colors:
The Black Sea looks black because it has little oxygen and a high concentration of hydrogen sulfide.
The Red Sea looks red because it contains seasonal blooms of algae that color the surface water red.
The Yellow Sea looks yellow because it contains a yellow mud carried into it by adjoining rivers.

Answer 4

Its to do with the level of Calcium Carbonate or Limestone within the water, the presence of changes the colour which is why sometimes near the beach it looks dark blue and others greenish. The calcium carbonate generally comes from reefs and small shelled creatures in the water, or even the sediment itself. the water then has lots of CaCO3 dissolved in it. When the sun beats down onto the sea it causes a reaction which changes the hue to the next level which is green causing the difference in colour, and why you see a sharp change from greeny to blue not a gradual one like you see in the swimming baths

Answer 5

The colour is green near the shores because sea plants grow in the presence of sunlight. All plants needs the sun to manufacture chlorophyl Since the sun cannot penetrate the depth of the ocean no plant grows hence the deep blue true colour of ocean mass.
The only green colour you see from space is vegetation.

Answer 6

Sunlight is made up of all the colors of the rainbow: red, orange, yellow, green, blue, and violet. Some of the sunlight is reflected off the surface of the water, reflecting the color of the sky. Some of the sunlight penetrates the water and is scattered by ripples and particles in the water (this tinges the appearance of the ocean with the color of the particles). In deep water, much of the sunlight is scattered by the oxygen in the water, and this scatters more of the blue light.

Water absorbs more of the red light in sunlight; the water also enhances the scattering of blue light. Sir Chandrasekhar Venkata Raman (an Indian physicist) won the Nobel prize in 1930 for his work on light.

Answer 7

This is because the colour of the sky is reflected onto the water. If you notice when it is downcast the ocean turns more of a gray colour. It is different shades of blue (or grey) depending on the depth of the water because the water bends the light in a similar way a prism does. Hope this helps and the following link should explain a bit better.

Answer 8

Green sea is found nearer the shore and is caused by the algae and other microscopic plankton feeding on the nutrients washing off the shore

Blue sea (pelagic or deep water) is further away from the shore and is usually devoid of such nutrients and hence doesn't go green

Although you do get algal blooms in some deep seas, these are caused by freak conditions

Answer 9

Nice question. I find that water must be slightly blue anyway, and not because of the sky, because it looks blue in the bath. Also if you go to a swimming pool, the water is a darker blue in the deep end. that would also explain why shallow water on the beach looks green, because you can see the sand through it. thanks for that-just thinking about the ocean has made me feel relaxed! :)

Answer 10

The ocean is blue as it reflects the oxygen above it.
Oxygen is slightly blue in hue, and that is why the sky and the ocean appears to be blue.
Plankton, however, is green, and is the most abundant life-form in the sea.
It is green because of its chlorophyll.
If there is an abundance of plankton, then the sea may appear green, but as the sea is made up primarily from oxygen and hydrogen, it will normally appear to be blue.