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2. Area density - Wikipedia

   en.wikipedia.org/wiki/Area_density

   A special type of area density is called column density (also columnar mass density or simply column density), denoted ρ A or σ. It is the mass of substance per unit area integrated along a path; [ 1 ] It is obtained integrating volumetric density ρ {\displaystyle \rho } over a column: [ 2 ] σ = ∫ ρ d s . {\displaystyle \sigma =\int \rho ...

3. Water (data page) - Wikipedia

   en.wikipedia.org/wiki/Water_(data_page)

   The third column is the heat content of each gram of the liquid phase relative to water at 0 °C. The fourth column is the heat of vaporization of each gram of liquid that changes to vapor. The fifth column is the work PΔV done by each gram of liquid that changes to vapor. The sixth column is the density of the vapor.

4. Energy density Extended Reference Table - Wikipedia

   en.wikipedia.org/wiki/Energy_density_Extended...

   Print/export Download as PDF; Printable version; In other projects ... This is an extended version of the energy density table from the main Energy density page ...

5. Number density - Wikipedia

   en.wikipedia.org/wiki/Number_density

   Column number density is a kind of areal density, the number or count of a substance per unit area, obtained integrating volumetric number density along a vertical path: ′ =. It's related to column mass density , with the volumetric number density replaced by the volume mass density.

6. Isopycnal - Wikipedia

   en.wikipedia.org/wiki/Isopycnal

   Density plays a large role in stratifying the ocean into layers. In a body of water, as the depth increases, so does the density; water masses with the highest density are at the bottom and the lowest densities are at the top. Typically, warm freshwater is less dense than cold salty water, thus the colder water will sink below the warmer water.

7. Column density - Wikipedia

   en.wikipedia.org/?title=Column_density&redirect=no

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8. Dobson unit - Wikipedia

   en.wikipedia.org/wiki/Dobson_unit

   The Dobson unit (DU) is a unit of measurement of the amount of a trace gas in a vertical column through the Earth's atmosphere.It originated by, and continues to be primarily used in respect to, the study of atmospheric ozone, whose total column amount, usually termed "total ozone", and sometimes "column abundance", is dominated by the high concentrations of ozone in the stratospheric ozone layer.

9. Density ratio - Wikipedia

   en.wikipedia.org/wiki/Density_ratio

   The density ratio of a column of seawater is a measure of the relative contributions of temperature and salinity in determining the density gradient. [1] At a density ratio of 1, temperature and salinity are said to be compensated : their density signatures cancel, leaving a density gradient of zero.