<p>This graph at Wikipedia/Wikimedia is part of the answer :</p>

<p><a href="https://i.sstatic.net/f0DIz.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/f0DIz.png" alt="enter image description here"></a></p>

<p>source: </p>

<ul>
<li><a href="https://en.wikipedia.org/wiki/Oceanic_carbon_cycle#/media/File:WOA05_GLODAP_pd_DIC_AYool.png" rel="nofollow noreferrer">en.wikipedia.org/wiki/Oceanic_carbon_cycle#/media/File:WOA05_GLODAP_pd_DIC_AYool.png</a></li>
<li><a href="https://en.wikipedia.org/wiki/File:WOA05_GLODAP_pd_DIC_AYool.png" rel="nofollow noreferrer">en.wikipedia.org/wiki/File:WOA05_GLODAP_pd_DIC_AYool.png</a></li>
</ul>

<p>2.15 mol/m<sup>3</sup> at the surface in 1990 seems like a approximative value, which makes approximately 27 g. </p>

<p>Now, the two questions left are:</p>

<ul>
<li>How did this value evolve since 1990?</li>
<li>Does this concentration change a lot with depth?</li>
</ul>

CC BY-SA 3.0
2017-11-19T18:47:51.250Z
2017-12-19T21:15:22.987Z
2017-12-19T21:15:22.987Z
Nyny
<p>What is the mean amount (in grams) of dissolved carbon in a ton of sea water ?</p>

<ol>
<li>The value I want is the concentration value in say the first two metres of surface water (A distribution of this concentration by depth would also help)</li>
<li>If I take say the 10% surface area where the CO<sub>2</sub> concentration is the highest on the globe, what does it change about the result ?</li>
</ol>

<p>Please feel free to answer even if your answer is not the complete one but just part of it.
Thanks</p>

<ocean-models>
What is the mean amount (in grams) of dissolved carbon in a ton of sea water?
Nyny
# What is the mean amount (in grams) of dissolved carbon in a ton of sea water?

(Asked by: username_0 on 2017-11-18)

What is the mean amount (in grams) of dissolved carbon in a ton of sea water ?

1. The value I want is the concentration value in say the first two metres of surface water (A distribution of this concentration by depth would also help)
2. If I take say the 10% surface area where the CO2 concentration is the highest on the globe, what does it change about the result ?

Please feel free to answer even if your answer is not the complete one but just part of it.
Thanks

**Tags:** ocean-models


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## 1 answers

### Answer by username_0 on 2017-11-19. Score: 2

This graph at Wikipedia/Wikimedia is part of the answer :

[![enter image description here](https://i.sstatic.net/f0DIz.png)](https://i.sstatic.net/f0DIz.png)

source:

* [en.wikipedia.org/wiki/Oceanic\_carbon\_cycle#/media/File:WOA05\_GLODAP\_pd\_DIC\_AYool.png](https://en.wikipedia.org/wiki/Oceanic_carbon_cycle#/media/File:WOA05_GLODAP_pd_DIC_AYool.png)
* [en.wikipedia.org/wiki/File:WOA05\_GLODAP\_pd\_DIC\_AYool.png](https://en.wikipedia.org/wiki/File:WOA05_GLODAP_pd_DIC_AYool.png)

2.15 mol/m3 at the surface in 1990 seems like a approximative value, which makes approximately 27 g.

Now, the two questions left are:

* How did this value evolve since 1990?
* Does this concentration change a lot with depth?


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